mIOGRAIC DATA SHEET KRA O RIiiLc I AIUII
lPN-AAJ-192 - D1O -0-0 G673MAMsi
Peport on tran maision requirements Ketenger system
4b - -MALAIMIIOIS (100)
amp GODOATE AVTHORS (101)
Main (Charles T) International Inc
DOCUMENT DATE (110)
9 REFERENCE ORGANIZATION (130) Main
10 SUPIFNTARY NOTES (500)
7 NUMER OF PAGBS (120)
47p ISARC NUMBER (170)
ID62131 M224h
11 ABSTRACT (950)
I power Projection ai Indonesia 497021300
Power transmission 14 ODMICr M0414) a pe pwation Noonomni analysis u
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REPORT ON
TRANSMISSION REQUIREMENTS
KETENGER SYSTEM
10 INTRODUCTION
Aid loan PDJ 046 TST-72 calls for the establishment of double
circuit 150 kV transmission (two circuits strung initially) in the Ketenger
system from Pekalongan to Cilicap a distance of about 120 miles 193 kin)
The Federal Republic of Germany (FRG) which is also providing financial
assistance to the GOI for the development of the electrical sector in
Central Java is planning to construct 150 kV double circuit transmission
(only one circuit strung initially) from the Samarang load area to Pekalongan
to interconnect the Tuntang and Ketenger systems of Central Java The FRG
also plans to finance a second 150 kV tie between the Tuntang and Ketenger
systems extending from Magelang to Purwokerto-a distance of 74 miles
(119 km) This transmission which will consist of double circuit towers
with one circuit strung initially will elso be used to incorporate the
Garung hydro plant
An analysis is made to (a) review long-term transmission requireshy
ments for Ketenger (b) determine economics of alternate transmission developshy
ment plans and (c) make recommendations on the immediate transmission
requirements corresponding to the least cost future expansion
The analysis considers the effect on transmission requirements of
the recommended 150 kV interconnection between the West Java and Central
Java systems This interconnection which will be In service by 1977
extends from the Cirebon area to Tegal and comprises of double circuit
towers with two circuits strung initially
20 DEFINITION OF ALTERNATIVES
In describing the alternative tow3r configurations considered in the
report the following nomenclature will be used
DT (DC) Double circuit towers - two circuits strung
DT (SC) Double circuit towers - one circuit strung
ST Single circuit towers
30
The following two alternative transmission schemes are considered for initial implementation in 1977 (See Exhibits 1 and 2)
Alternative A DT(DC) transmission extending from Samarang-Timur to Cilicap via Pekalongan Tegal and Purwokerto Garung hydro is incorporated over DT(SC) transmission to Magelang
Alternative B DT(SC) transmission from Samarang-Timur to Purwokerto DT(SC) transmission from Magelang - Purwokerto via Garung and DT(DC) from Purwokerto to Cilicap
The DT(DC) transmission Purwokerto - Cilicap is common to both alternatives
Transmission requirements beyond 1977 are then developed for each of the two above alternatives and an economic analysis made of these two developments to determine the least cost transmission expansion scheme The analysis also considers the possible initial development of Alternative B with ST instead of DT(SC)
COST ESTIMATES
The following cost estimates are used in the economic analysis of the alternate transmission developments
31 Transmission Lines
Transmission costs for the Ketenger transmission could vary appreciably depending on procurement policies For the purpose of this analysis the following range of costs apply
$mile
Procurement
DT(DC) DT(SC)
US Procurement 55000 42500
of tower steel from India
40000 31000
ST 34200 25000
The cost of adding the second circuit on a DT(SC) line
at some later date is estimated to be $11000mile
32 Substations
For the purpose of this analysis all substations are
assumed developed with standard main-and-transfer bus schemes The
cost of a 150 kV feeder position is assumed to be $150000
40 ALTERNATIVE TRANSMISSION EXPANSION SCHEMES
Load flow analyses outlined in the attached Appendix demonstrate
the requirement for the following future transmission additions for Alternatives
A and B defined in Section 3 (only uncommon facilities are indicated)
Case 1 Generation in Cilicap area
(a) Expansion Scheme A
1977 - DT(DC) Samarang Timur - Tegal - Purwokerto
(146 miles - 235 kin)
1989 - DT(DC) Garung - Purwokerto
(48 miles - 775 kin)
(b) Expansion Scheme B
1977 - DT(SC) Samarang Timur - Tegal - Purwokerto
- DT(SC) Garung - Purwokerto
1977 - 1980 - Add second circuit on DT(SC)
Samarang Timur - Tegal (915 miles - 147 kin)
1989 - Add second circuit on
(a) Garung - Purwokerto (48 miles - 775 kin)
(b) Tegal - Purwokerto (548 miles - 88 km)
By 1989 Schemes A and B will have the same transmission
facilities
The above schemes were developed on the following basis
(a) Transmission should be adequate for the transfer otiD-j
om Central Java to West Java or from West Java to Central Java up to
After 1984 the transfer capacity is increased to 100 MW in
either direction A transmission outage of one critical circuit is assumed
in the analysis Due to the very high isokeraunic level in the wet season
this is considered aminimum contingency requirement
(b) Generation will be developed in the Cilicap area with about
100 MW available in 1984
The requirement for transmission in 1977-1980 in Expansion
Scheme B is dictated by very poor voltage conditions resulting from the loss of any section of the Semarang - Tegal transmission while delivering 50 MW from Central Java to West Java over the circuitous route Samarang - DJelok -
Magelang - Purwokerto - Tegal (183 miles - 294 km)
The analysis shows that if generation is not developed in the
Cilicap area the following sequence of transmission additions wil be
required for the period after 1977
Case 2 No Generation in Cilicap area
(a) Expansion Scheme A
1984 - DT(DC) Garung - Purwokerto (This represents
an advancement from 1989 to 1984)
(b) Expansion Scheme B
1984 - Add second circuit on Garung - Purwokerto DT(SC) line
50 ECONOMIC ANALYSES
Exhibits 3 aid 4 show investment costs for base cases I and 2
outlined in Section 4 The second circuit Semarang - Tlmur to Tegal is assumed required in 1980 The present worth of investments for both
cases computed at discount rates of 12 and 15 - the range of opportunity
cost of capital in Indonesia - is shown below
$ x 103
Present Worth Discount Rate of 12 15
Case 1 (Generation at Cilicap) Scheme A 11882 11656
B 12070 11834
Difference infavor of A 188 178
Case 2 (No generation at Cilicap)
Scheme A 12510 12270 B 12231 12000
Difference in favor of B (281) (270)
Advancement of the requirement for the second circuit Semarang Timur - Tegal to 1977 would increase the cost of Scheme B as shown below
$ x103
Present Worth Discount Rata of
12 15 Case 1 (a)
Scheme A 11882 11656 B 12710 12589
Difference in favor of A 828 933
A comparison was also made of the economics of base Case 1 assuming transmission costs based on procurement of tower steel from India
The following applies shy
3$ x0
Present Worth Discount Rate of
12 15 Case 1 (b)
Scheme A 9498 9322 B 9830 91595
Difference infavor of A 332 273
IfScheme B is developed using ST transmission the resultant investments are shown inExhibit 5 and the present worth of costs are shown
below
$ x 103
Present Worth Discount Rate of
12 15
Case 3
Scheme A 11882 11656 B 12575 12060
The above analysis shows that provided generation isinstalled in the Cilicap area by 1984 Scheme A is less expensive than Scheme B The
economic advantage of Scheme A over B is not significant if the second circuit Semarang Timur - Tegal is delayed to 1980 in Scheme B However it would not be prudent to operate with one circuit from Semarang Timur - Tegal for
eoowhinr sons
(a) Voltage conditions during the emergency loss of any one line section Semarang - Tegal will be very poor resulting in possible loss of load
(b) Stability of the interconnected West Java Central Java system will not be retained for faults on the single circuit Samarang - Tegal transmission while transferring 50 MW from Central Java to West Java
The above reasons dic -two eee__ marag and Tegal This early requirement for the second circuit
enhances the relative economy of Scheme A (See Case 1 (a)
The analysis also shows that the use of DT(SC) instead of ST In
Scheme B results in the least present worth of costs (Compare Case 3 with
Case 1)
Although Case 2 shows an economic advantage for Scheme B it is considered very unlikely that generation will not be developed in the
Cilicap area by 1984 The proximity to a readily available source of fuel shythe Pertamina refinery - and the ideal harbor and siteing conditions in the Cilicap area strongly favor the development of steam generation in that area
60 RECOMMENDATIONS
Considering the economic evaluation outlined in Section 5 and the system requirement for a strong interconnection between the West Java and Central Java systems it is recommended that two circuits be provided from
-Zeai- Samarang in 1977 The adoption of DT(DC) towers results in o
The extension of DT(DC) transmission to Cilicap also represents the least cost solution and is therefore recommended for implementation in 1977
Garung hydro should be incorporated over DT(DC) radial transmission to Magelang
Loads along the Magelang - Garung - Purwokerto route can be supplied at 20 kV over distribution lines from 15020 kV substations at Garung and Purwokerto By 1984 the Garung - Purwokerto link will be closed and new 15020 kV subshystations could be developed to supply increased loads in the area
Economic Analysis
of Alternate Schemes
Case 1 Investment $ x 103
Scheme A Scheme B
- 1977 Transmission -146 mi $55000 $ 8050 -146 mi $42500 $ 6220 - 48 ml $42500 2040
Substations - 20 fdr position 3000 - 12 fdr position $11_ 0_ 0 1 00
$11050 $10060
-1980 Transmission
- 915 mi $11 000 1005
Substations -8 fdr positions 1 200$ 2205
-1989 Transmission
- 48 mi $55000 2640 - 48 m $11 000 528 - 548 mi $1Il000 604
Substations -4 fdr position 600 -4 fdr position 600
$ 3240 $ 1732
Exhibit 3
Economic Analysis
of Alternate Schemes
Case 2
Investment $ x 103
Scheme A Scheme B
-1977 (Same as Case 1) $11050 $10060
-1980 (Same as Case 1) - 2205
-1984 Transmission
-48 -48
mi $55000 mi $11000
2640 528
Substations - 4 fdr position 600 - 2 fdr position 300
-1989 Transmission
-548 mi $11000 604
Substations 2 fdr position 300
-1977
ECONOMIC ANALYSIS of Alternate Schemes
Case 3 Investment $ x 10 3
Scheme A Scheme B
- Transmission -146 mi $55000 8050-146 mi $34200 5000 - 48 mi $34200 1640
-Substations - 20 fdr position 3000 - 12 fdr position 1800
11050 8440 -1980
-Transmission -915 mi $34200 3130
-Substations 8 fdr position 1200
-1989 4330
-Transmission -48 mi $55000 2640-48 mi $34200 1640-548 mi $34200 1870
-Substations - 4 fdr position 600 - 4 fdr position 600
3240 4110
SEOURANG SEMARANG SHARBOR
PEKALONGAN WEST DJATINGALEHshy362 Mi 469 Mi deg 6 Mi 38 Mi z
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o150kV proposed by CT MAIN _ _ _ _ _ _ _IIT__TJILATJAP liA underUS AID loan agreement CENTRAL JAVA
am-- 150 kV recommended by CT MAIN TRANSISSION RE UIRENETS 1 shy
for service reliability 150 kV TlANiiSiSUll lST EN _ _ _ _ _ _ _A L T E R N A T E SCNEIE_A
150 kV planned by Federal Republic TLTERATE SCNEI Ali TVAL OPof Gearany CaAS T Muin INTEliAT I =A I UE INO
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II NOTE
All conductors considered 477 ECM-ACSR JO JAKARTA
II E OOSLEGEND - 28 i I t
TJILATJAP 150 kV considered as alternate EXIIT scheme by CT MAIN CETRAL JAVA TRANSMISSION REQUIREMENTS 1977 - 16
150 kiV RANSEISfiS ffiffi 150 kV planned by Federal Republic ALTERNATE SCHEME I of Germany HAS T lAIN INTEIATIINAL INIC S CAEI
UTE1 C40RLITTE 44Ein --SSAMUUUTTS MWlTI CANLINAI 21 48
Load Flow Analyses
Load flow studies were conducted to determine the capabilities of the two alternate transmission system developments outlined in Section 2 The study extended over a 12 year period 1977 - 1989 Summaries of the load flow cases run in the study are shown in Exhibits A B and C Flow and voltage conditions for each case represented in Exhibit A are also attached
Key load flows which influence the development of the alternate transmission schemes described in Section 2 of the report are described below
Alternate A
Test A - 8 1984 load level and 100 MW delivery to West Java no generation at Cilicap and contingency loss of one Pekalongan-Semarang circuit Voltages in the Ketenger system are unacceptably low
Test A - 13 Same as A shy 8 but with one circuit Garung-Purwokerto in-service Voltages and flows throughout the system are adequate
Test A - 12 Same ris A shy 8 but with generation in Cilicap Contingency loss of one Purwokerto - Tegal circuit Voltages and flows throughout the system are adequate
The above tests show that without generation in the Cilicap area a second transmission connection between the Tuntang and Ketenger systems is required on or before 1984
Alternate B
Test B-3 1977 loads and 50 MW delivery to West Java Contingency loss of Pekalongan - Semarang West transmission Voltages in the Central Java system are inadequate Stability of the Interconnected system is marginal due to large angles between Samarang and Jakarta generation
This test defines the requirement for a second circuit
between Tegal and Semarang in the early stages of
development of the Ketenger 150 kV transmission
system
Transmission requirements for 1989 were developed using engineering
Judgement The transmission additions resulted in the same number of circuits
for both alternatives A and B
CENTRAL JAVA
TRAMISUISSION REIJIREMENTS 1877 - 199
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LOAD FLOW TESTS ALTERNATIVE A
TEST DESCRIPTION RESULTS
Is LOAN
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12 TJILATJAP X TEOALOUT - PURiOKERTO pound n 105
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Exhibit B
CENTRAL JAVA TRANSMISSION REQUIREMENTS 1977 - 1989
LOAD FLOW TESTS ALTERNATIVE B
DESCRIPTION RESULTS TEST
PhR TRANSMISSIIN LINES LTS EFE I EAC E LOADED VLMINTERCANGENEST H IVA NORIAL ALL LINES SYSTEM LI1ES
LIAI1TH _ __ _ I NSERVICE
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Exhibit C
105
105
107 SEMARANG 105 SEARAN
PEKALONGAN WEST DJATINGALEH HARBOR
212-p- 1e 10 6--- 0-180
TEL IPA SEMARANGshy|41 1 61 TIMUR
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CHAS 1971 LOAD LEVEL - ALT
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TJILATJAP POWER TO WEST JAVA 500 MWA__T_7______ CENTRAL JAVA
POWER FROM WEST JAVA 0 TRANSMISSION REQUIRENENTS 197 19i
LOAD FLOW TEST A-ZSYSTEM OPERATION NORMAL 1977 LOAD LEVEL - ALT A
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TRANSMISSION REQUIRENENTS 177 - 1
LOAD FLOW TEST A- 1984 LOAD LEVEL - ALT I
CHAS T MAIN INTEENATIONAL 9
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CENTRAL JAVA LOAD POWER TO WEST JAVA
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l -lt i 1977 LOAD LEVEL - ALT I H Cl n--r k i k CHAS T MAIN INTERNATIAL INC
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SYSTEM OPERATION LINE CONTINGENCY LOAD FLOW TEST 3-71984 LOAD LEVEL - ALT I
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1984 LOAD LEVEL --ALT I
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LINE CONTINGENCY LOAD FLOW TEST 3-11 1984 LOAD LEVEL - ALT I
C E CHAS T NAMt INTEMATIUALIN K VON[
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42
Inv A N
REPORT ON
TRANSMISSION REQUIREMENTS
KETENGER SYSTEM
10 INTRODUCTION
Aid loan PDJ 046 TST-72 calls for the establishment of double
circuit 150 kV transmission (two circuits strung initially) in the Ketenger
system from Pekalongan to Cilicap a distance of about 120 miles 193 kin)
The Federal Republic of Germany (FRG) which is also providing financial
assistance to the GOI for the development of the electrical sector in
Central Java is planning to construct 150 kV double circuit transmission
(only one circuit strung initially) from the Samarang load area to Pekalongan
to interconnect the Tuntang and Ketenger systems of Central Java The FRG
also plans to finance a second 150 kV tie between the Tuntang and Ketenger
systems extending from Magelang to Purwokerto-a distance of 74 miles
(119 km) This transmission which will consist of double circuit towers
with one circuit strung initially will elso be used to incorporate the
Garung hydro plant
An analysis is made to (a) review long-term transmission requireshy
ments for Ketenger (b) determine economics of alternate transmission developshy
ment plans and (c) make recommendations on the immediate transmission
requirements corresponding to the least cost future expansion
The analysis considers the effect on transmission requirements of
the recommended 150 kV interconnection between the West Java and Central
Java systems This interconnection which will be In service by 1977
extends from the Cirebon area to Tegal and comprises of double circuit
towers with two circuits strung initially
20 DEFINITION OF ALTERNATIVES
In describing the alternative tow3r configurations considered in the
report the following nomenclature will be used
DT (DC) Double circuit towers - two circuits strung
DT (SC) Double circuit towers - one circuit strung
ST Single circuit towers
30
The following two alternative transmission schemes are considered for initial implementation in 1977 (See Exhibits 1 and 2)
Alternative A DT(DC) transmission extending from Samarang-Timur to Cilicap via Pekalongan Tegal and Purwokerto Garung hydro is incorporated over DT(SC) transmission to Magelang
Alternative B DT(SC) transmission from Samarang-Timur to Purwokerto DT(SC) transmission from Magelang - Purwokerto via Garung and DT(DC) from Purwokerto to Cilicap
The DT(DC) transmission Purwokerto - Cilicap is common to both alternatives
Transmission requirements beyond 1977 are then developed for each of the two above alternatives and an economic analysis made of these two developments to determine the least cost transmission expansion scheme The analysis also considers the possible initial development of Alternative B with ST instead of DT(SC)
COST ESTIMATES
The following cost estimates are used in the economic analysis of the alternate transmission developments
31 Transmission Lines
Transmission costs for the Ketenger transmission could vary appreciably depending on procurement policies For the purpose of this analysis the following range of costs apply
$mile
Procurement
DT(DC) DT(SC)
US Procurement 55000 42500
of tower steel from India
40000 31000
ST 34200 25000
The cost of adding the second circuit on a DT(SC) line
at some later date is estimated to be $11000mile
32 Substations
For the purpose of this analysis all substations are
assumed developed with standard main-and-transfer bus schemes The
cost of a 150 kV feeder position is assumed to be $150000
40 ALTERNATIVE TRANSMISSION EXPANSION SCHEMES
Load flow analyses outlined in the attached Appendix demonstrate
the requirement for the following future transmission additions for Alternatives
A and B defined in Section 3 (only uncommon facilities are indicated)
Case 1 Generation in Cilicap area
(a) Expansion Scheme A
1977 - DT(DC) Samarang Timur - Tegal - Purwokerto
(146 miles - 235 kin)
1989 - DT(DC) Garung - Purwokerto
(48 miles - 775 kin)
(b) Expansion Scheme B
1977 - DT(SC) Samarang Timur - Tegal - Purwokerto
- DT(SC) Garung - Purwokerto
1977 - 1980 - Add second circuit on DT(SC)
Samarang Timur - Tegal (915 miles - 147 kin)
1989 - Add second circuit on
(a) Garung - Purwokerto (48 miles - 775 kin)
(b) Tegal - Purwokerto (548 miles - 88 km)
By 1989 Schemes A and B will have the same transmission
facilities
The above schemes were developed on the following basis
(a) Transmission should be adequate for the transfer otiD-j
om Central Java to West Java or from West Java to Central Java up to
After 1984 the transfer capacity is increased to 100 MW in
either direction A transmission outage of one critical circuit is assumed
in the analysis Due to the very high isokeraunic level in the wet season
this is considered aminimum contingency requirement
(b) Generation will be developed in the Cilicap area with about
100 MW available in 1984
The requirement for transmission in 1977-1980 in Expansion
Scheme B is dictated by very poor voltage conditions resulting from the loss of any section of the Semarang - Tegal transmission while delivering 50 MW from Central Java to West Java over the circuitous route Samarang - DJelok -
Magelang - Purwokerto - Tegal (183 miles - 294 km)
The analysis shows that if generation is not developed in the
Cilicap area the following sequence of transmission additions wil be
required for the period after 1977
Case 2 No Generation in Cilicap area
(a) Expansion Scheme A
1984 - DT(DC) Garung - Purwokerto (This represents
an advancement from 1989 to 1984)
(b) Expansion Scheme B
1984 - Add second circuit on Garung - Purwokerto DT(SC) line
50 ECONOMIC ANALYSES
Exhibits 3 aid 4 show investment costs for base cases I and 2
outlined in Section 4 The second circuit Semarang - Tlmur to Tegal is assumed required in 1980 The present worth of investments for both
cases computed at discount rates of 12 and 15 - the range of opportunity
cost of capital in Indonesia - is shown below
$ x 103
Present Worth Discount Rate of 12 15
Case 1 (Generation at Cilicap) Scheme A 11882 11656
B 12070 11834
Difference infavor of A 188 178
Case 2 (No generation at Cilicap)
Scheme A 12510 12270 B 12231 12000
Difference in favor of B (281) (270)
Advancement of the requirement for the second circuit Semarang Timur - Tegal to 1977 would increase the cost of Scheme B as shown below
$ x103
Present Worth Discount Rata of
12 15 Case 1 (a)
Scheme A 11882 11656 B 12710 12589
Difference in favor of A 828 933
A comparison was also made of the economics of base Case 1 assuming transmission costs based on procurement of tower steel from India
The following applies shy
3$ x0
Present Worth Discount Rate of
12 15 Case 1 (b)
Scheme A 9498 9322 B 9830 91595
Difference infavor of A 332 273
IfScheme B is developed using ST transmission the resultant investments are shown inExhibit 5 and the present worth of costs are shown
below
$ x 103
Present Worth Discount Rate of
12 15
Case 3
Scheme A 11882 11656 B 12575 12060
The above analysis shows that provided generation isinstalled in the Cilicap area by 1984 Scheme A is less expensive than Scheme B The
economic advantage of Scheme A over B is not significant if the second circuit Semarang Timur - Tegal is delayed to 1980 in Scheme B However it would not be prudent to operate with one circuit from Semarang Timur - Tegal for
eoowhinr sons
(a) Voltage conditions during the emergency loss of any one line section Semarang - Tegal will be very poor resulting in possible loss of load
(b) Stability of the interconnected West Java Central Java system will not be retained for faults on the single circuit Samarang - Tegal transmission while transferring 50 MW from Central Java to West Java
The above reasons dic -two eee__ marag and Tegal This early requirement for the second circuit
enhances the relative economy of Scheme A (See Case 1 (a)
The analysis also shows that the use of DT(SC) instead of ST In
Scheme B results in the least present worth of costs (Compare Case 3 with
Case 1)
Although Case 2 shows an economic advantage for Scheme B it is considered very unlikely that generation will not be developed in the
Cilicap area by 1984 The proximity to a readily available source of fuel shythe Pertamina refinery - and the ideal harbor and siteing conditions in the Cilicap area strongly favor the development of steam generation in that area
60 RECOMMENDATIONS
Considering the economic evaluation outlined in Section 5 and the system requirement for a strong interconnection between the West Java and Central Java systems it is recommended that two circuits be provided from
-Zeai- Samarang in 1977 The adoption of DT(DC) towers results in o
The extension of DT(DC) transmission to Cilicap also represents the least cost solution and is therefore recommended for implementation in 1977
Garung hydro should be incorporated over DT(DC) radial transmission to Magelang
Loads along the Magelang - Garung - Purwokerto route can be supplied at 20 kV over distribution lines from 15020 kV substations at Garung and Purwokerto By 1984 the Garung - Purwokerto link will be closed and new 15020 kV subshystations could be developed to supply increased loads in the area
Economic Analysis
of Alternate Schemes
Case 1 Investment $ x 103
Scheme A Scheme B
- 1977 Transmission -146 mi $55000 $ 8050 -146 mi $42500 $ 6220 - 48 ml $42500 2040
Substations - 20 fdr position 3000 - 12 fdr position $11_ 0_ 0 1 00
$11050 $10060
-1980 Transmission
- 915 mi $11 000 1005
Substations -8 fdr positions 1 200$ 2205
-1989 Transmission
- 48 mi $55000 2640 - 48 m $11 000 528 - 548 mi $1Il000 604
Substations -4 fdr position 600 -4 fdr position 600
$ 3240 $ 1732
Exhibit 3
Economic Analysis
of Alternate Schemes
Case 2
Investment $ x 103
Scheme A Scheme B
-1977 (Same as Case 1) $11050 $10060
-1980 (Same as Case 1) - 2205
-1984 Transmission
-48 -48
mi $55000 mi $11000
2640 528
Substations - 4 fdr position 600 - 2 fdr position 300
-1989 Transmission
-548 mi $11000 604
Substations 2 fdr position 300
-1977
ECONOMIC ANALYSIS of Alternate Schemes
Case 3 Investment $ x 10 3
Scheme A Scheme B
- Transmission -146 mi $55000 8050-146 mi $34200 5000 - 48 mi $34200 1640
-Substations - 20 fdr position 3000 - 12 fdr position 1800
11050 8440 -1980
-Transmission -915 mi $34200 3130
-Substations 8 fdr position 1200
-1989 4330
-Transmission -48 mi $55000 2640-48 mi $34200 1640-548 mi $34200 1870
-Substations - 4 fdr position 600 - 4 fdr position 600
3240 4110
SEOURANG SEMARANG SHARBOR
PEKALONGAN WEST DJATINGALEHshy362 Mi 469 Mi deg 6 Mi 38 Mi z
TEII SEMARANG-
T TIUR
11I bull [ DJELOKl
U33 3ELA G SALATIGA-II 3l3M 251 Mi
BJOLALIP ft
4 PURWOKERTO
NOTE l lAconductors considered W JOGJAKARTA SOLO
iI 477 NCM-AC3R
SOLO SELEGEND
o150kV proposed by CT MAIN _ _ _ _ _ _ _IIT__TJILATJAP liA underUS AID loan agreement CENTRAL JAVA
am-- 150 kV recommended by CT MAIN TRANSISSION RE UIRENETS 1 shy
for service reliability 150 kV TlANiiSiSUll lST EN _ _ _ _ _ _ _A L T E R N A T E SCNEIE_A
150 kV planned by Federal Republic TLTERATE SCNEI Ali TVAL OPof Gearany CaAS T Muin INTEliAT I =A I UE INO
OWAWVA1TLE COPY of eanyI s
IAUU5ITT nUTNAS WTI =131A4
- O
SIRA SEMARANG
SPLEKALNGAN PEKLONA SEMARANG DAGLHHARBOR -WEST DJATNGALEH
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T TIMUR
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o-GARUNG 343 NiSALATI GA
I IPURWOKERTO
II NOTE
All conductors considered 477 ECM-ACSR JO JAKARTA
II E OOSLEGEND - 28 i I t
TJILATJAP 150 kV considered as alternate EXIIT scheme by CT MAIN CETRAL JAVA TRANSMISSION REQUIREMENTS 1977 - 16
150 kiV RANSEISfiS ffiffi 150 kV planned by Federal Republic ALTERNATE SCHEME I of Germany HAS T lAIN INTEIATIINAL INIC S CAEI
UTE1 C40RLITTE 44Ein --SSAMUUUTTS MWlTI CANLINAI 21 48
Load Flow Analyses
Load flow studies were conducted to determine the capabilities of the two alternate transmission system developments outlined in Section 2 The study extended over a 12 year period 1977 - 1989 Summaries of the load flow cases run in the study are shown in Exhibits A B and C Flow and voltage conditions for each case represented in Exhibit A are also attached
Key load flows which influence the development of the alternate transmission schemes described in Section 2 of the report are described below
Alternate A
Test A - 8 1984 load level and 100 MW delivery to West Java no generation at Cilicap and contingency loss of one Pekalongan-Semarang circuit Voltages in the Ketenger system are unacceptably low
Test A - 13 Same as A shy 8 but with one circuit Garung-Purwokerto in-service Voltages and flows throughout the system are adequate
Test A - 12 Same ris A shy 8 but with generation in Cilicap Contingency loss of one Purwokerto - Tegal circuit Voltages and flows throughout the system are adequate
The above tests show that without generation in the Cilicap area a second transmission connection between the Tuntang and Ketenger systems is required on or before 1984
Alternate B
Test B-3 1977 loads and 50 MW delivery to West Java Contingency loss of Pekalongan - Semarang West transmission Voltages in the Central Java system are inadequate Stability of the Interconnected system is marginal due to large angles between Samarang and Jakarta generation
This test defines the requirement for a second circuit
between Tegal and Semarang in the early stages of
development of the Ketenger 150 kV transmission
system
Transmission requirements for 1989 were developed using engineering
Judgement The transmission additions resulted in the same number of circuits
for both alternatives A and B
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REPORT ON
TRANSMISSION REQUIREMENTS
KETENGER SYSTEM
10 INTRODUCTION
Aid loan PDJ 046 TST-72 calls for the establishment of double
circuit 150 kV transmission (two circuits strung initially) in the Ketenger
system from Pekalongan to Cilicap a distance of about 120 miles 193 kin)
The Federal Republic of Germany (FRG) which is also providing financial
assistance to the GOI for the development of the electrical sector in
Central Java is planning to construct 150 kV double circuit transmission
(only one circuit strung initially) from the Samarang load area to Pekalongan
to interconnect the Tuntang and Ketenger systems of Central Java The FRG
also plans to finance a second 150 kV tie between the Tuntang and Ketenger
systems extending from Magelang to Purwokerto-a distance of 74 miles
(119 km) This transmission which will consist of double circuit towers
with one circuit strung initially will elso be used to incorporate the
Garung hydro plant
An analysis is made to (a) review long-term transmission requireshy
ments for Ketenger (b) determine economics of alternate transmission developshy
ment plans and (c) make recommendations on the immediate transmission
requirements corresponding to the least cost future expansion
The analysis considers the effect on transmission requirements of
the recommended 150 kV interconnection between the West Java and Central
Java systems This interconnection which will be In service by 1977
extends from the Cirebon area to Tegal and comprises of double circuit
towers with two circuits strung initially
20 DEFINITION OF ALTERNATIVES
In describing the alternative tow3r configurations considered in the
report the following nomenclature will be used
DT (DC) Double circuit towers - two circuits strung
DT (SC) Double circuit towers - one circuit strung
ST Single circuit towers
30
The following two alternative transmission schemes are considered for initial implementation in 1977 (See Exhibits 1 and 2)
Alternative A DT(DC) transmission extending from Samarang-Timur to Cilicap via Pekalongan Tegal and Purwokerto Garung hydro is incorporated over DT(SC) transmission to Magelang
Alternative B DT(SC) transmission from Samarang-Timur to Purwokerto DT(SC) transmission from Magelang - Purwokerto via Garung and DT(DC) from Purwokerto to Cilicap
The DT(DC) transmission Purwokerto - Cilicap is common to both alternatives
Transmission requirements beyond 1977 are then developed for each of the two above alternatives and an economic analysis made of these two developments to determine the least cost transmission expansion scheme The analysis also considers the possible initial development of Alternative B with ST instead of DT(SC)
COST ESTIMATES
The following cost estimates are used in the economic analysis of the alternate transmission developments
31 Transmission Lines
Transmission costs for the Ketenger transmission could vary appreciably depending on procurement policies For the purpose of this analysis the following range of costs apply
$mile
Procurement
DT(DC) DT(SC)
US Procurement 55000 42500
of tower steel from India
40000 31000
ST 34200 25000
The cost of adding the second circuit on a DT(SC) line
at some later date is estimated to be $11000mile
32 Substations
For the purpose of this analysis all substations are
assumed developed with standard main-and-transfer bus schemes The
cost of a 150 kV feeder position is assumed to be $150000
40 ALTERNATIVE TRANSMISSION EXPANSION SCHEMES
Load flow analyses outlined in the attached Appendix demonstrate
the requirement for the following future transmission additions for Alternatives
A and B defined in Section 3 (only uncommon facilities are indicated)
Case 1 Generation in Cilicap area
(a) Expansion Scheme A
1977 - DT(DC) Samarang Timur - Tegal - Purwokerto
(146 miles - 235 kin)
1989 - DT(DC) Garung - Purwokerto
(48 miles - 775 kin)
(b) Expansion Scheme B
1977 - DT(SC) Samarang Timur - Tegal - Purwokerto
- DT(SC) Garung - Purwokerto
1977 - 1980 - Add second circuit on DT(SC)
Samarang Timur - Tegal (915 miles - 147 kin)
1989 - Add second circuit on
(a) Garung - Purwokerto (48 miles - 775 kin)
(b) Tegal - Purwokerto (548 miles - 88 km)
By 1989 Schemes A and B will have the same transmission
facilities
The above schemes were developed on the following basis
(a) Transmission should be adequate for the transfer otiD-j
om Central Java to West Java or from West Java to Central Java up to
After 1984 the transfer capacity is increased to 100 MW in
either direction A transmission outage of one critical circuit is assumed
in the analysis Due to the very high isokeraunic level in the wet season
this is considered aminimum contingency requirement
(b) Generation will be developed in the Cilicap area with about
100 MW available in 1984
The requirement for transmission in 1977-1980 in Expansion
Scheme B is dictated by very poor voltage conditions resulting from the loss of any section of the Semarang - Tegal transmission while delivering 50 MW from Central Java to West Java over the circuitous route Samarang - DJelok -
Magelang - Purwokerto - Tegal (183 miles - 294 km)
The analysis shows that if generation is not developed in the
Cilicap area the following sequence of transmission additions wil be
required for the period after 1977
Case 2 No Generation in Cilicap area
(a) Expansion Scheme A
1984 - DT(DC) Garung - Purwokerto (This represents
an advancement from 1989 to 1984)
(b) Expansion Scheme B
1984 - Add second circuit on Garung - Purwokerto DT(SC) line
50 ECONOMIC ANALYSES
Exhibits 3 aid 4 show investment costs for base cases I and 2
outlined in Section 4 The second circuit Semarang - Tlmur to Tegal is assumed required in 1980 The present worth of investments for both
cases computed at discount rates of 12 and 15 - the range of opportunity
cost of capital in Indonesia - is shown below
$ x 103
Present Worth Discount Rate of 12 15
Case 1 (Generation at Cilicap) Scheme A 11882 11656
B 12070 11834
Difference infavor of A 188 178
Case 2 (No generation at Cilicap)
Scheme A 12510 12270 B 12231 12000
Difference in favor of B (281) (270)
Advancement of the requirement for the second circuit Semarang Timur - Tegal to 1977 would increase the cost of Scheme B as shown below
$ x103
Present Worth Discount Rata of
12 15 Case 1 (a)
Scheme A 11882 11656 B 12710 12589
Difference in favor of A 828 933
A comparison was also made of the economics of base Case 1 assuming transmission costs based on procurement of tower steel from India
The following applies shy
3$ x0
Present Worth Discount Rate of
12 15 Case 1 (b)
Scheme A 9498 9322 B 9830 91595
Difference infavor of A 332 273
IfScheme B is developed using ST transmission the resultant investments are shown inExhibit 5 and the present worth of costs are shown
below
$ x 103
Present Worth Discount Rate of
12 15
Case 3
Scheme A 11882 11656 B 12575 12060
The above analysis shows that provided generation isinstalled in the Cilicap area by 1984 Scheme A is less expensive than Scheme B The
economic advantage of Scheme A over B is not significant if the second circuit Semarang Timur - Tegal is delayed to 1980 in Scheme B However it would not be prudent to operate with one circuit from Semarang Timur - Tegal for
eoowhinr sons
(a) Voltage conditions during the emergency loss of any one line section Semarang - Tegal will be very poor resulting in possible loss of load
(b) Stability of the interconnected West Java Central Java system will not be retained for faults on the single circuit Samarang - Tegal transmission while transferring 50 MW from Central Java to West Java
The above reasons dic -two eee__ marag and Tegal This early requirement for the second circuit
enhances the relative economy of Scheme A (See Case 1 (a)
The analysis also shows that the use of DT(SC) instead of ST In
Scheme B results in the least present worth of costs (Compare Case 3 with
Case 1)
Although Case 2 shows an economic advantage for Scheme B it is considered very unlikely that generation will not be developed in the
Cilicap area by 1984 The proximity to a readily available source of fuel shythe Pertamina refinery - and the ideal harbor and siteing conditions in the Cilicap area strongly favor the development of steam generation in that area
60 RECOMMENDATIONS
Considering the economic evaluation outlined in Section 5 and the system requirement for a strong interconnection between the West Java and Central Java systems it is recommended that two circuits be provided from
-Zeai- Samarang in 1977 The adoption of DT(DC) towers results in o
The extension of DT(DC) transmission to Cilicap also represents the least cost solution and is therefore recommended for implementation in 1977
Garung hydro should be incorporated over DT(DC) radial transmission to Magelang
Loads along the Magelang - Garung - Purwokerto route can be supplied at 20 kV over distribution lines from 15020 kV substations at Garung and Purwokerto By 1984 the Garung - Purwokerto link will be closed and new 15020 kV subshystations could be developed to supply increased loads in the area
Economic Analysis
of Alternate Schemes
Case 1 Investment $ x 103
Scheme A Scheme B
- 1977 Transmission -146 mi $55000 $ 8050 -146 mi $42500 $ 6220 - 48 ml $42500 2040
Substations - 20 fdr position 3000 - 12 fdr position $11_ 0_ 0 1 00
$11050 $10060
-1980 Transmission
- 915 mi $11 000 1005
Substations -8 fdr positions 1 200$ 2205
-1989 Transmission
- 48 mi $55000 2640 - 48 m $11 000 528 - 548 mi $1Il000 604
Substations -4 fdr position 600 -4 fdr position 600
$ 3240 $ 1732
Exhibit 3
Economic Analysis
of Alternate Schemes
Case 2
Investment $ x 103
Scheme A Scheme B
-1977 (Same as Case 1) $11050 $10060
-1980 (Same as Case 1) - 2205
-1984 Transmission
-48 -48
mi $55000 mi $11000
2640 528
Substations - 4 fdr position 600 - 2 fdr position 300
-1989 Transmission
-548 mi $11000 604
Substations 2 fdr position 300
-1977
ECONOMIC ANALYSIS of Alternate Schemes
Case 3 Investment $ x 10 3
Scheme A Scheme B
- Transmission -146 mi $55000 8050-146 mi $34200 5000 - 48 mi $34200 1640
-Substations - 20 fdr position 3000 - 12 fdr position 1800
11050 8440 -1980
-Transmission -915 mi $34200 3130
-Substations 8 fdr position 1200
-1989 4330
-Transmission -48 mi $55000 2640-48 mi $34200 1640-548 mi $34200 1870
-Substations - 4 fdr position 600 - 4 fdr position 600
3240 4110
SEOURANG SEMARANG SHARBOR
PEKALONGAN WEST DJATINGALEHshy362 Mi 469 Mi deg 6 Mi 38 Mi z
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am-- 150 kV recommended by CT MAIN TRANSISSION RE UIRENETS 1 shy
for service reliability 150 kV TlANiiSiSUll lST EN _ _ _ _ _ _ _A L T E R N A T E SCNEIE_A
150 kV planned by Federal Republic TLTERATE SCNEI Ali TVAL OPof Gearany CaAS T Muin INTEliAT I =A I UE INO
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II E OOSLEGEND - 28 i I t
TJILATJAP 150 kV considered as alternate EXIIT scheme by CT MAIN CETRAL JAVA TRANSMISSION REQUIREMENTS 1977 - 16
150 kiV RANSEISfiS ffiffi 150 kV planned by Federal Republic ALTERNATE SCHEME I of Germany HAS T lAIN INTEIATIINAL INIC S CAEI
UTE1 C40RLITTE 44Ein --SSAMUUUTTS MWlTI CANLINAI 21 48
Load Flow Analyses
Load flow studies were conducted to determine the capabilities of the two alternate transmission system developments outlined in Section 2 The study extended over a 12 year period 1977 - 1989 Summaries of the load flow cases run in the study are shown in Exhibits A B and C Flow and voltage conditions for each case represented in Exhibit A are also attached
Key load flows which influence the development of the alternate transmission schemes described in Section 2 of the report are described below
Alternate A
Test A - 8 1984 load level and 100 MW delivery to West Java no generation at Cilicap and contingency loss of one Pekalongan-Semarang circuit Voltages in the Ketenger system are unacceptably low
Test A - 13 Same as A shy 8 but with one circuit Garung-Purwokerto in-service Voltages and flows throughout the system are adequate
Test A - 12 Same ris A shy 8 but with generation in Cilicap Contingency loss of one Purwokerto - Tegal circuit Voltages and flows throughout the system are adequate
The above tests show that without generation in the Cilicap area a second transmission connection between the Tuntang and Ketenger systems is required on or before 1984
Alternate B
Test B-3 1977 loads and 50 MW delivery to West Java Contingency loss of Pekalongan - Semarang West transmission Voltages in the Central Java system are inadequate Stability of the Interconnected system is marginal due to large angles between Samarang and Jakarta generation
This test defines the requirement for a second circuit
between Tegal and Semarang in the early stages of
development of the Ketenger 150 kV transmission
system
Transmission requirements for 1989 were developed using engineering
Judgement The transmission additions resulted in the same number of circuits
for both alternatives A and B
CENTRAL JAVA
TRAMISUISSION REIJIREMENTS 1877 - 199
ais 1977 1S u 1h6 250 Wlw M 111111I1O SMS 1 0 0 0eTJIULTJW Ume 1M 111W111M) ______ I__MlTIiceIS 50 50 10 INo
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COiTRAL JAVA TRANSMISSION REQUIREMENTS 1977 - 198
LOAD FLOW TESTS ALTERNATIVE A
TEST DESCRIPTION RESULTS
Is LOAN
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12 TJILATJAP X TEOALOUT - PURiOKERTO pound n 105
13 SEMARANG SEN W - PEKALONGAN OUTABHO SINOLE CIRCUIT DETWEENPONLYPUiWOENTO AND CAUNG 1 105
Exhibit B
CENTRAL JAVA TRANSMISSION REQUIREMENTS 1977 - 1989
LOAD FLOW TESTS ALTERNATIVE B
DESCRIPTION RESULTS TEST
PhR TRANSMISSIIN LINES LTS EFE I EAC E LOADED VLMINTERCANGENEST H IVA NORIAL ALL LINES SYSTEM LI1ES
LIAI1TH _ __ _ I NSERVICE
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Exhibit C
105
105
107 SEMARANG 105 SEARAN
PEKALONGAN WEST DJATINGALEH HARBOR
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LOAD FLOW TEST A-ZSYSTEM OPERATION NORMAL 1977 LOAD LEVEL - ALT A
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1984 LOAD LEVEL - ALT I
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POWER FROM WEST JAVA 0 TRANSMISSION REQUIREMENTS 177 - IOo
SYSTEM OPERATION LINE CONTINGENCY LOAD FLOW TEST A-O 1984 LOAD LEVEL - ALT B
CHAS T MAIN INIZMATINAL INKC S E BOSTON CNALOTTE CLIIT -
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10 INTRODUCTION
Aid loan PDJ 046 TST-72 calls for the establishment of double
circuit 150 kV transmission (two circuits strung initially) in the Ketenger
system from Pekalongan to Cilicap a distance of about 120 miles 193 kin)
The Federal Republic of Germany (FRG) which is also providing financial
assistance to the GOI for the development of the electrical sector in
Central Java is planning to construct 150 kV double circuit transmission
(only one circuit strung initially) from the Samarang load area to Pekalongan
to interconnect the Tuntang and Ketenger systems of Central Java The FRG
also plans to finance a second 150 kV tie between the Tuntang and Ketenger
systems extending from Magelang to Purwokerto-a distance of 74 miles
(119 km) This transmission which will consist of double circuit towers
with one circuit strung initially will elso be used to incorporate the
Garung hydro plant
An analysis is made to (a) review long-term transmission requireshy
ments for Ketenger (b) determine economics of alternate transmission developshy
ment plans and (c) make recommendations on the immediate transmission
requirements corresponding to the least cost future expansion
The analysis considers the effect on transmission requirements of
the recommended 150 kV interconnection between the West Java and Central
Java systems This interconnection which will be In service by 1977
extends from the Cirebon area to Tegal and comprises of double circuit
towers with two circuits strung initially
20 DEFINITION OF ALTERNATIVES
In describing the alternative tow3r configurations considered in the
report the following nomenclature will be used
DT (DC) Double circuit towers - two circuits strung
DT (SC) Double circuit towers - one circuit strung
ST Single circuit towers
30
The following two alternative transmission schemes are considered for initial implementation in 1977 (See Exhibits 1 and 2)
Alternative A DT(DC) transmission extending from Samarang-Timur to Cilicap via Pekalongan Tegal and Purwokerto Garung hydro is incorporated over DT(SC) transmission to Magelang
Alternative B DT(SC) transmission from Samarang-Timur to Purwokerto DT(SC) transmission from Magelang - Purwokerto via Garung and DT(DC) from Purwokerto to Cilicap
The DT(DC) transmission Purwokerto - Cilicap is common to both alternatives
Transmission requirements beyond 1977 are then developed for each of the two above alternatives and an economic analysis made of these two developments to determine the least cost transmission expansion scheme The analysis also considers the possible initial development of Alternative B with ST instead of DT(SC)
COST ESTIMATES
The following cost estimates are used in the economic analysis of the alternate transmission developments
31 Transmission Lines
Transmission costs for the Ketenger transmission could vary appreciably depending on procurement policies For the purpose of this analysis the following range of costs apply
$mile
Procurement
DT(DC) DT(SC)
US Procurement 55000 42500
of tower steel from India
40000 31000
ST 34200 25000
The cost of adding the second circuit on a DT(SC) line
at some later date is estimated to be $11000mile
32 Substations
For the purpose of this analysis all substations are
assumed developed with standard main-and-transfer bus schemes The
cost of a 150 kV feeder position is assumed to be $150000
40 ALTERNATIVE TRANSMISSION EXPANSION SCHEMES
Load flow analyses outlined in the attached Appendix demonstrate
the requirement for the following future transmission additions for Alternatives
A and B defined in Section 3 (only uncommon facilities are indicated)
Case 1 Generation in Cilicap area
(a) Expansion Scheme A
1977 - DT(DC) Samarang Timur - Tegal - Purwokerto
(146 miles - 235 kin)
1989 - DT(DC) Garung - Purwokerto
(48 miles - 775 kin)
(b) Expansion Scheme B
1977 - DT(SC) Samarang Timur - Tegal - Purwokerto
- DT(SC) Garung - Purwokerto
1977 - 1980 - Add second circuit on DT(SC)
Samarang Timur - Tegal (915 miles - 147 kin)
1989 - Add second circuit on
(a) Garung - Purwokerto (48 miles - 775 kin)
(b) Tegal - Purwokerto (548 miles - 88 km)
By 1989 Schemes A and B will have the same transmission
facilities
The above schemes were developed on the following basis
(a) Transmission should be adequate for the transfer otiD-j
om Central Java to West Java or from West Java to Central Java up to
After 1984 the transfer capacity is increased to 100 MW in
either direction A transmission outage of one critical circuit is assumed
in the analysis Due to the very high isokeraunic level in the wet season
this is considered aminimum contingency requirement
(b) Generation will be developed in the Cilicap area with about
100 MW available in 1984
The requirement for transmission in 1977-1980 in Expansion
Scheme B is dictated by very poor voltage conditions resulting from the loss of any section of the Semarang - Tegal transmission while delivering 50 MW from Central Java to West Java over the circuitous route Samarang - DJelok -
Magelang - Purwokerto - Tegal (183 miles - 294 km)
The analysis shows that if generation is not developed in the
Cilicap area the following sequence of transmission additions wil be
required for the period after 1977
Case 2 No Generation in Cilicap area
(a) Expansion Scheme A
1984 - DT(DC) Garung - Purwokerto (This represents
an advancement from 1989 to 1984)
(b) Expansion Scheme B
1984 - Add second circuit on Garung - Purwokerto DT(SC) line
50 ECONOMIC ANALYSES
Exhibits 3 aid 4 show investment costs for base cases I and 2
outlined in Section 4 The second circuit Semarang - Tlmur to Tegal is assumed required in 1980 The present worth of investments for both
cases computed at discount rates of 12 and 15 - the range of opportunity
cost of capital in Indonesia - is shown below
$ x 103
Present Worth Discount Rate of 12 15
Case 1 (Generation at Cilicap) Scheme A 11882 11656
B 12070 11834
Difference infavor of A 188 178
Case 2 (No generation at Cilicap)
Scheme A 12510 12270 B 12231 12000
Difference in favor of B (281) (270)
Advancement of the requirement for the second circuit Semarang Timur - Tegal to 1977 would increase the cost of Scheme B as shown below
$ x103
Present Worth Discount Rata of
12 15 Case 1 (a)
Scheme A 11882 11656 B 12710 12589
Difference in favor of A 828 933
A comparison was also made of the economics of base Case 1 assuming transmission costs based on procurement of tower steel from India
The following applies shy
3$ x0
Present Worth Discount Rate of
12 15 Case 1 (b)
Scheme A 9498 9322 B 9830 91595
Difference infavor of A 332 273
IfScheme B is developed using ST transmission the resultant investments are shown inExhibit 5 and the present worth of costs are shown
below
$ x 103
Present Worth Discount Rate of
12 15
Case 3
Scheme A 11882 11656 B 12575 12060
The above analysis shows that provided generation isinstalled in the Cilicap area by 1984 Scheme A is less expensive than Scheme B The
economic advantage of Scheme A over B is not significant if the second circuit Semarang Timur - Tegal is delayed to 1980 in Scheme B However it would not be prudent to operate with one circuit from Semarang Timur - Tegal for
eoowhinr sons
(a) Voltage conditions during the emergency loss of any one line section Semarang - Tegal will be very poor resulting in possible loss of load
(b) Stability of the interconnected West Java Central Java system will not be retained for faults on the single circuit Samarang - Tegal transmission while transferring 50 MW from Central Java to West Java
The above reasons dic -two eee__ marag and Tegal This early requirement for the second circuit
enhances the relative economy of Scheme A (See Case 1 (a)
The analysis also shows that the use of DT(SC) instead of ST In
Scheme B results in the least present worth of costs (Compare Case 3 with
Case 1)
Although Case 2 shows an economic advantage for Scheme B it is considered very unlikely that generation will not be developed in the
Cilicap area by 1984 The proximity to a readily available source of fuel shythe Pertamina refinery - and the ideal harbor and siteing conditions in the Cilicap area strongly favor the development of steam generation in that area
60 RECOMMENDATIONS
Considering the economic evaluation outlined in Section 5 and the system requirement for a strong interconnection between the West Java and Central Java systems it is recommended that two circuits be provided from
-Zeai- Samarang in 1977 The adoption of DT(DC) towers results in o
The extension of DT(DC) transmission to Cilicap also represents the least cost solution and is therefore recommended for implementation in 1977
Garung hydro should be incorporated over DT(DC) radial transmission to Magelang
Loads along the Magelang - Garung - Purwokerto route can be supplied at 20 kV over distribution lines from 15020 kV substations at Garung and Purwokerto By 1984 the Garung - Purwokerto link will be closed and new 15020 kV subshystations could be developed to supply increased loads in the area
Economic Analysis
of Alternate Schemes
Case 1 Investment $ x 103
Scheme A Scheme B
- 1977 Transmission -146 mi $55000 $ 8050 -146 mi $42500 $ 6220 - 48 ml $42500 2040
Substations - 20 fdr position 3000 - 12 fdr position $11_ 0_ 0 1 00
$11050 $10060
-1980 Transmission
- 915 mi $11 000 1005
Substations -8 fdr positions 1 200$ 2205
-1989 Transmission
- 48 mi $55000 2640 - 48 m $11 000 528 - 548 mi $1Il000 604
Substations -4 fdr position 600 -4 fdr position 600
$ 3240 $ 1732
Exhibit 3
Economic Analysis
of Alternate Schemes
Case 2
Investment $ x 103
Scheme A Scheme B
-1977 (Same as Case 1) $11050 $10060
-1980 (Same as Case 1) - 2205
-1984 Transmission
-48 -48
mi $55000 mi $11000
2640 528
Substations - 4 fdr position 600 - 2 fdr position 300
-1989 Transmission
-548 mi $11000 604
Substations 2 fdr position 300
-1977
ECONOMIC ANALYSIS of Alternate Schemes
Case 3 Investment $ x 10 3
Scheme A Scheme B
- Transmission -146 mi $55000 8050-146 mi $34200 5000 - 48 mi $34200 1640
-Substations - 20 fdr position 3000 - 12 fdr position 1800
11050 8440 -1980
-Transmission -915 mi $34200 3130
-Substations 8 fdr position 1200
-1989 4330
-Transmission -48 mi $55000 2640-48 mi $34200 1640-548 mi $34200 1870
-Substations - 4 fdr position 600 - 4 fdr position 600
3240 4110
SEOURANG SEMARANG SHARBOR
PEKALONGAN WEST DJATINGALEHshy362 Mi 469 Mi deg 6 Mi 38 Mi z
TEII SEMARANG-
T TIUR
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NOTE l lAconductors considered W JOGJAKARTA SOLO
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SOLO SELEGEND
o150kV proposed by CT MAIN _ _ _ _ _ _ _IIT__TJILATJAP liA underUS AID loan agreement CENTRAL JAVA
am-- 150 kV recommended by CT MAIN TRANSISSION RE UIRENETS 1 shy
for service reliability 150 kV TlANiiSiSUll lST EN _ _ _ _ _ _ _A L T E R N A T E SCNEIE_A
150 kV planned by Federal Republic TLTERATE SCNEI Ali TVAL OPof Gearany CaAS T Muin INTEliAT I =A I UE INO
OWAWVA1TLE COPY of eanyI s
IAUU5ITT nUTNAS WTI =131A4
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All conductors considered 477 ECM-ACSR JO JAKARTA
II E OOSLEGEND - 28 i I t
TJILATJAP 150 kV considered as alternate EXIIT scheme by CT MAIN CETRAL JAVA TRANSMISSION REQUIREMENTS 1977 - 16
150 kiV RANSEISfiS ffiffi 150 kV planned by Federal Republic ALTERNATE SCHEME I of Germany HAS T lAIN INTEIATIINAL INIC S CAEI
UTE1 C40RLITTE 44Ein --SSAMUUUTTS MWlTI CANLINAI 21 48
Load Flow Analyses
Load flow studies were conducted to determine the capabilities of the two alternate transmission system developments outlined in Section 2 The study extended over a 12 year period 1977 - 1989 Summaries of the load flow cases run in the study are shown in Exhibits A B and C Flow and voltage conditions for each case represented in Exhibit A are also attached
Key load flows which influence the development of the alternate transmission schemes described in Section 2 of the report are described below
Alternate A
Test A - 8 1984 load level and 100 MW delivery to West Java no generation at Cilicap and contingency loss of one Pekalongan-Semarang circuit Voltages in the Ketenger system are unacceptably low
Test A - 13 Same as A shy 8 but with one circuit Garung-Purwokerto in-service Voltages and flows throughout the system are adequate
Test A - 12 Same ris A shy 8 but with generation in Cilicap Contingency loss of one Purwokerto - Tegal circuit Voltages and flows throughout the system are adequate
The above tests show that without generation in the Cilicap area a second transmission connection between the Tuntang and Ketenger systems is required on or before 1984
Alternate B
Test B-3 1977 loads and 50 MW delivery to West Java Contingency loss of Pekalongan - Semarang West transmission Voltages in the Central Java system are inadequate Stability of the Interconnected system is marginal due to large angles between Samarang and Jakarta generation
This test defines the requirement for a second circuit
between Tegal and Semarang in the early stages of
development of the Ketenger 150 kV transmission
system
Transmission requirements for 1989 were developed using engineering
Judgement The transmission additions resulted in the same number of circuits
for both alternatives A and B
CENTRAL JAVA
TRAMISUISSION REIJIREMENTS 1877 - 199
ais 1977 1S u 1h6 250 Wlw M 111111I1O SMS 1 0 0 0eTJIULTJW Ume 1M 111W111M) ______ I__MlTIiceIS 50 50 10 INo
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LOAD FLOW TESTS ALTERNATIVE A
TEST DESCRIPTION RESULTS
Is LOAN
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12 TJILATJAP X TEOALOUT - PURiOKERTO pound n 105
13 SEMARANG SEN W - PEKALONGAN OUTABHO SINOLE CIRCUIT DETWEENPONLYPUiWOENTO AND CAUNG 1 105
Exhibit B
CENTRAL JAVA TRANSMISSION REQUIREMENTS 1977 - 1989
LOAD FLOW TESTS ALTERNATIVE B
DESCRIPTION RESULTS TEST
PhR TRANSMISSIIN LINES LTS EFE I EAC E LOADED VLMINTERCANGENEST H IVA NORIAL ALL LINES SYSTEM LI1ES
LIAI1TH _ __ _ I NSERVICE
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Exhibit C
105
105
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30
The following two alternative transmission schemes are considered for initial implementation in 1977 (See Exhibits 1 and 2)
Alternative A DT(DC) transmission extending from Samarang-Timur to Cilicap via Pekalongan Tegal and Purwokerto Garung hydro is incorporated over DT(SC) transmission to Magelang
Alternative B DT(SC) transmission from Samarang-Timur to Purwokerto DT(SC) transmission from Magelang - Purwokerto via Garung and DT(DC) from Purwokerto to Cilicap
The DT(DC) transmission Purwokerto - Cilicap is common to both alternatives
Transmission requirements beyond 1977 are then developed for each of the two above alternatives and an economic analysis made of these two developments to determine the least cost transmission expansion scheme The analysis also considers the possible initial development of Alternative B with ST instead of DT(SC)
COST ESTIMATES
The following cost estimates are used in the economic analysis of the alternate transmission developments
31 Transmission Lines
Transmission costs for the Ketenger transmission could vary appreciably depending on procurement policies For the purpose of this analysis the following range of costs apply
$mile
Procurement
DT(DC) DT(SC)
US Procurement 55000 42500
of tower steel from India
40000 31000
ST 34200 25000
The cost of adding the second circuit on a DT(SC) line
at some later date is estimated to be $11000mile
32 Substations
For the purpose of this analysis all substations are
assumed developed with standard main-and-transfer bus schemes The
cost of a 150 kV feeder position is assumed to be $150000
40 ALTERNATIVE TRANSMISSION EXPANSION SCHEMES
Load flow analyses outlined in the attached Appendix demonstrate
the requirement for the following future transmission additions for Alternatives
A and B defined in Section 3 (only uncommon facilities are indicated)
Case 1 Generation in Cilicap area
(a) Expansion Scheme A
1977 - DT(DC) Samarang Timur - Tegal - Purwokerto
(146 miles - 235 kin)
1989 - DT(DC) Garung - Purwokerto
(48 miles - 775 kin)
(b) Expansion Scheme B
1977 - DT(SC) Samarang Timur - Tegal - Purwokerto
- DT(SC) Garung - Purwokerto
1977 - 1980 - Add second circuit on DT(SC)
Samarang Timur - Tegal (915 miles - 147 kin)
1989 - Add second circuit on
(a) Garung - Purwokerto (48 miles - 775 kin)
(b) Tegal - Purwokerto (548 miles - 88 km)
By 1989 Schemes A and B will have the same transmission
facilities
The above schemes were developed on the following basis
(a) Transmission should be adequate for the transfer otiD-j
om Central Java to West Java or from West Java to Central Java up to
After 1984 the transfer capacity is increased to 100 MW in
either direction A transmission outage of one critical circuit is assumed
in the analysis Due to the very high isokeraunic level in the wet season
this is considered aminimum contingency requirement
(b) Generation will be developed in the Cilicap area with about
100 MW available in 1984
The requirement for transmission in 1977-1980 in Expansion
Scheme B is dictated by very poor voltage conditions resulting from the loss of any section of the Semarang - Tegal transmission while delivering 50 MW from Central Java to West Java over the circuitous route Samarang - DJelok -
Magelang - Purwokerto - Tegal (183 miles - 294 km)
The analysis shows that if generation is not developed in the
Cilicap area the following sequence of transmission additions wil be
required for the period after 1977
Case 2 No Generation in Cilicap area
(a) Expansion Scheme A
1984 - DT(DC) Garung - Purwokerto (This represents
an advancement from 1989 to 1984)
(b) Expansion Scheme B
1984 - Add second circuit on Garung - Purwokerto DT(SC) line
50 ECONOMIC ANALYSES
Exhibits 3 aid 4 show investment costs for base cases I and 2
outlined in Section 4 The second circuit Semarang - Tlmur to Tegal is assumed required in 1980 The present worth of investments for both
cases computed at discount rates of 12 and 15 - the range of opportunity
cost of capital in Indonesia - is shown below
$ x 103
Present Worth Discount Rate of 12 15
Case 1 (Generation at Cilicap) Scheme A 11882 11656
B 12070 11834
Difference infavor of A 188 178
Case 2 (No generation at Cilicap)
Scheme A 12510 12270 B 12231 12000
Difference in favor of B (281) (270)
Advancement of the requirement for the second circuit Semarang Timur - Tegal to 1977 would increase the cost of Scheme B as shown below
$ x103
Present Worth Discount Rata of
12 15 Case 1 (a)
Scheme A 11882 11656 B 12710 12589
Difference in favor of A 828 933
A comparison was also made of the economics of base Case 1 assuming transmission costs based on procurement of tower steel from India
The following applies shy
3$ x0
Present Worth Discount Rate of
12 15 Case 1 (b)
Scheme A 9498 9322 B 9830 91595
Difference infavor of A 332 273
IfScheme B is developed using ST transmission the resultant investments are shown inExhibit 5 and the present worth of costs are shown
below
$ x 103
Present Worth Discount Rate of
12 15
Case 3
Scheme A 11882 11656 B 12575 12060
The above analysis shows that provided generation isinstalled in the Cilicap area by 1984 Scheme A is less expensive than Scheme B The
economic advantage of Scheme A over B is not significant if the second circuit Semarang Timur - Tegal is delayed to 1980 in Scheme B However it would not be prudent to operate with one circuit from Semarang Timur - Tegal for
eoowhinr sons
(a) Voltage conditions during the emergency loss of any one line section Semarang - Tegal will be very poor resulting in possible loss of load
(b) Stability of the interconnected West Java Central Java system will not be retained for faults on the single circuit Samarang - Tegal transmission while transferring 50 MW from Central Java to West Java
The above reasons dic -two eee__ marag and Tegal This early requirement for the second circuit
enhances the relative economy of Scheme A (See Case 1 (a)
The analysis also shows that the use of DT(SC) instead of ST In
Scheme B results in the least present worth of costs (Compare Case 3 with
Case 1)
Although Case 2 shows an economic advantage for Scheme B it is considered very unlikely that generation will not be developed in the
Cilicap area by 1984 The proximity to a readily available source of fuel shythe Pertamina refinery - and the ideal harbor and siteing conditions in the Cilicap area strongly favor the development of steam generation in that area
60 RECOMMENDATIONS
Considering the economic evaluation outlined in Section 5 and the system requirement for a strong interconnection between the West Java and Central Java systems it is recommended that two circuits be provided from
-Zeai- Samarang in 1977 The adoption of DT(DC) towers results in o
The extension of DT(DC) transmission to Cilicap also represents the least cost solution and is therefore recommended for implementation in 1977
Garung hydro should be incorporated over DT(DC) radial transmission to Magelang
Loads along the Magelang - Garung - Purwokerto route can be supplied at 20 kV over distribution lines from 15020 kV substations at Garung and Purwokerto By 1984 the Garung - Purwokerto link will be closed and new 15020 kV subshystations could be developed to supply increased loads in the area
Economic Analysis
of Alternate Schemes
Case 1 Investment $ x 103
Scheme A Scheme B
- 1977 Transmission -146 mi $55000 $ 8050 -146 mi $42500 $ 6220 - 48 ml $42500 2040
Substations - 20 fdr position 3000 - 12 fdr position $11_ 0_ 0 1 00
$11050 $10060
-1980 Transmission
- 915 mi $11 000 1005
Substations -8 fdr positions 1 200$ 2205
-1989 Transmission
- 48 mi $55000 2640 - 48 m $11 000 528 - 548 mi $1Il000 604
Substations -4 fdr position 600 -4 fdr position 600
$ 3240 $ 1732
Exhibit 3
Economic Analysis
of Alternate Schemes
Case 2
Investment $ x 103
Scheme A Scheme B
-1977 (Same as Case 1) $11050 $10060
-1980 (Same as Case 1) - 2205
-1984 Transmission
-48 -48
mi $55000 mi $11000
2640 528
Substations - 4 fdr position 600 - 2 fdr position 300
-1989 Transmission
-548 mi $11000 604
Substations 2 fdr position 300
-1977
ECONOMIC ANALYSIS of Alternate Schemes
Case 3 Investment $ x 10 3
Scheme A Scheme B
- Transmission -146 mi $55000 8050-146 mi $34200 5000 - 48 mi $34200 1640
-Substations - 20 fdr position 3000 - 12 fdr position 1800
11050 8440 -1980
-Transmission -915 mi $34200 3130
-Substations 8 fdr position 1200
-1989 4330
-Transmission -48 mi $55000 2640-48 mi $34200 1640-548 mi $34200 1870
-Substations - 4 fdr position 600 - 4 fdr position 600
3240 4110
SEOURANG SEMARANG SHARBOR
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for service reliability 150 kV TlANiiSiSUll lST EN _ _ _ _ _ _ _A L T E R N A T E SCNEIE_A
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II E OOSLEGEND - 28 i I t
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150 kiV RANSEISfiS ffiffi 150 kV planned by Federal Republic ALTERNATE SCHEME I of Germany HAS T lAIN INTEIATIINAL INIC S CAEI
UTE1 C40RLITTE 44Ein --SSAMUUUTTS MWlTI CANLINAI 21 48
Load Flow Analyses
Load flow studies were conducted to determine the capabilities of the two alternate transmission system developments outlined in Section 2 The study extended over a 12 year period 1977 - 1989 Summaries of the load flow cases run in the study are shown in Exhibits A B and C Flow and voltage conditions for each case represented in Exhibit A are also attached
Key load flows which influence the development of the alternate transmission schemes described in Section 2 of the report are described below
Alternate A
Test A - 8 1984 load level and 100 MW delivery to West Java no generation at Cilicap and contingency loss of one Pekalongan-Semarang circuit Voltages in the Ketenger system are unacceptably low
Test A - 13 Same as A shy 8 but with one circuit Garung-Purwokerto in-service Voltages and flows throughout the system are adequate
Test A - 12 Same ris A shy 8 but with generation in Cilicap Contingency loss of one Purwokerto - Tegal circuit Voltages and flows throughout the system are adequate
The above tests show that without generation in the Cilicap area a second transmission connection between the Tuntang and Ketenger systems is required on or before 1984
Alternate B
Test B-3 1977 loads and 50 MW delivery to West Java Contingency loss of Pekalongan - Semarang West transmission Voltages in the Central Java system are inadequate Stability of the Interconnected system is marginal due to large angles between Samarang and Jakarta generation
This test defines the requirement for a second circuit
between Tegal and Semarang in the early stages of
development of the Ketenger 150 kV transmission
system
Transmission requirements for 1989 were developed using engineering
Judgement The transmission additions resulted in the same number of circuits
for both alternatives A and B
CENTRAL JAVA
TRAMISUISSION REIJIREMENTS 1877 - 199
ais 1977 1S u 1h6 250 Wlw M 111111I1O SMS 1 0 0 0eTJIULTJW Ume 1M 111W111M) ______ I__MlTIiceIS 50 50 10 INo
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COiTRAL JAVA TRANSMISSION REQUIREMENTS 1977 - 198
LOAD FLOW TESTS ALTERNATIVE A
TEST DESCRIPTION RESULTS
Is LOAN
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12 TJILATJAP X TEOALOUT - PURiOKERTO pound n 105
13 SEMARANG SEN W - PEKALONGAN OUTABHO SINOLE CIRCUIT DETWEENPONLYPUiWOENTO AND CAUNG 1 105
Exhibit B
CENTRAL JAVA TRANSMISSION REQUIREMENTS 1977 - 1989
LOAD FLOW TESTS ALTERNATIVE B
DESCRIPTION RESULTS TEST
PhR TRANSMISSIIN LINES LTS EFE I EAC E LOADED VLMINTERCANGENEST H IVA NORIAL ALL LINES SYSTEM LI1ES
LIAI1TH _ __ _ I NSERVICE
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Exhibit C
105
105
107 SEMARANG 105 SEARAN
PEKALONGAN WEST DJATINGALEH HARBOR
212-p- 1e 10 6--- 0-180
TEL IPA SEMARANGshy|41 1 61 TIMUR
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108 0 i PURWOKERTO I
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LOAD FLOW TEST A-ZSYSTEM OPERATION NORMAL 1977 LOAD LEVEL - ALT A
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LOAD FLOU TEST A-5 1984 LOAD LEVEL -A LT A
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104 105 SEMARAN
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TRANSMISSION REQUIREMENTS 1977 - 165 SYSTEM OPERATION LINE CONTINGENCY LOAD FLOW TEST A-111
1984 LOAD LEVEL - ALT I
INTEMATIONAL INC OW 12STm CHALITE IN
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7 21984 LoAD LEVEL - ALT A CHAS T MAIN INTEMATImUAL ila
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NS ANU TIL- KIM CARILINA =I1 49
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1105 SEMARANG
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--shy8-i SE4ARANGshy
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m~17 m O09 BOJOLAL I
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098 SOLO S CENTRAL JAVA LOAD 252 MW E
z p POWER TO WEST JAVA 100 MW C EXHIBIT
POWER FROM WEST JAVA 0 TRANSMISSION REQUIREMENTS 177 - IOo
SYSTEM OPERATION LINE CONTINGENCY LOAD FLOW TEST A-O 1984 LOAD LEVEL - ALT B
CHAS T MAIN INIZMATINAL INKC S E BOSTON CNALOTTE CLIIT -
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104 SEMARANG 104 SEMARANG
PEKALONGAN WEST DJATINGALEH -= HARBOR - - 1476- 1276 1070 --1026
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JAVA TRANSMISSION REQUIRENEnTS 1977 - IOU
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E 9SL EXIT
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CETALJVTRANSMISSION REQUIREMENTS 1977 - 135 LOAD FLOW TEST A-12
1984 LOAD LEVEL - ALT I
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90 MSOLO $ CENTRAL JAVA LOAD 252 MW E
092 EXHIIT TJILATJAP POWER TO WEST JAVAPOWERTJPRJCENTRALEPOWER FROM WEST JAVA
100 MW 0 JAVATRANSMISSION REQUIREMENTS 1977 - 196O
SYSTEM OPERATION LINE CONTINGENCY LOAD FLOW TEST A-13 1984 LOAD LEVEL - ALTJA
S- - SCHAS T MAIN INTEMATIONAL INC BOSTON CHARLITTE CLIEt
S III TN allmLlINA 2U1 4 -
i 05
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Pp(I-e-4 c k
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l -lt i 1977 LOAD LEVEL - ALT I H Cl n--r k i k CHAS T MAIN INTERNATIAL INC
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MSAHSTTS IRNCOLA 2881
104 ( 105
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855 - - ObC -SEM N 14
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NORMAL
bullC EXHIBIT
CENTRAL JAVA TRANSMISSION REQUIREMENTS 1177 -1S97
LOAD FLOW TEST 8-4 1984 LOAD LEVEL - ALT 3
CHAS T MAIN INTERNATIONAL INCJ E EMU
BOSTON CNAiLITTE CLIENT 1N MASSAHUSETTS NIAN CAOIA236N1 44 A
1025 SEMAR GSEMARANG 103 HARBORPEKALONGAN WEST DJATiNGALEH 0 C ---8865 00 10 33TEGAL
TEG L1 77 4- 200 290 -004
i____I_ SEMARANG TIMUR
0985350102 DJELOK
_-- Q MAGELANGi350 40 0MIESLTG
5 9 5 2
PURWOKERTO
-W JOGJAKATA SOLOn
CEATRAL JAVA LOAD 252 MW EXHIBIT C LE50 MWTmWP POWER TO WEST JAVA
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HA-S T MAIN INTE ATIONAL N ALE-8 USTON CHARLOTTE CLIENT ift
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(i~~~~i~cx r- c
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- IPOWER FROM WEST JAVA 0 TRANSMIS31ON REQUIREMENTS 1077 lg-
SYSTEM OPERATION LINE CONTINGENCY LA LVTS shy1984 LOAD LEVEL - ALT D -- C~~HAST MAIN INT|IMATINAL INCI I d shy
_ - ASSACHUSETTS CIN NA MII A8
105
1035 SEMARANG SEMARANG 104 HARBOR
N WEST DJATINGALEH 4-49 9
33244- 191 47 104 I SEMARANGLJ
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095
1194 SALATIGA
29 32 0 -f BOJOLAL I
am WJOGJAKATA SOLO I
094 m -SOLO $ T TJ kP m EElIl
CENTRAL JAVA LOAD 252 MW EXIBT
TTJ1L~AIP POWER TO WEST JAVA 50 MW CENTRAL JAVA POWER FROM WEST JAVA 0 TRANSMISSION REQUIREMENTS 1977 - In
SYSTEM OPERATION LINE CONTINGENCY LOAD FLOW TEST 3-71984 LOAD LEVEL - ALT I
CHAS T MAIN INTERNATIONALINC BOSTON CHARLOTTE CLIENT IN
ASSACHUSETTS NOTHN I 2111
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a 2 0
k1 104
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LOAD PLOW TEST 8-8LINE CONTINENCY 1984 LOAD LEEL - ALT
CHAS T MAIN INTERNATIONAL INC s
BOSTON CNARLOTTE CLIENT MASSACHUSEITS NORTN CA 261i
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1977 - 190
1 shy4
(-)
i05 104 SEMARANG
103 SEMARANG 104 in HARBOR PEKALONGAN WEST DJATINGALEHc
332 -- 165 0-07 a 1137 TEGAL
7 -4-
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1015 CENTRAL JAVA LOAD 252 MW EHIBIT TJILATJAP POWER TO WEST JAVA 0 CENTRALiJAVA
POWER FROM WEST JAVA 100 TRANSMISSION REQUIREMENTS 1977 - 1SB
SYSTEM OPERATION LOAD FLOW TEST 1-9 1984 LOAD LEVEL - ALTD
CHAS T MAIN INTERNATIAL INCISCAL -BOSTON CNARLITTE CLIENT 0
-ASSACHUSETTS INTH CAA 2061 4
Cshy 105 1037 SEMARANG
102 SEMARANG 104 HARBOR PEKALONGAN WEST DJATINGALEH
- 165 -- 575 1614 -4--3 4 - 234 1044 TEAL TIMURa~im SEMARANG
cca
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- - POWER FROM WEST JAVA 100 MW TRANSMISSION REQUIREMNTS 1977 -1989l
-- SYSTEM OPERATION LINE CONTINGENCY LOAD FLOW TEST l-1O - 1964 LOAD LEVEL - ALT$
C AS T MAIN INTERNAT I ONAL IC _ _ -
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114
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_ - SYSTEM OPERATION LINE CONTINGENCY LOAD FLOW TEST I -2 ~_It -- CHAS T IMAIN
LOAD LEVEL INTERNATIIAL
- ALTD1 lC
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--- 5-760_ 405 6 055 1 - 123 220e 297---- 417-L- 1045 ---m ---i- i iSEMARANG
INS TIMUR
4103 I OJELOK
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722--4shy 17 5--l BOJOLALI
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w SOLOMoo n t JOGJAKATAi m CENTRAL JAVA LOAD 252 MW 81T
105 TJILATJAP POWER TO WEST JAVA 0 fCENTRAL JAVA
1POWER FROM WEST JAVA 100 MW TRANSMISSION REqUIREMEITS 19U
LOAD FLLV TEST 1-13SYSTEM OPERATION NORMAL 19614 LOAD LEVEL - ALTI
S T MAIN INTENATIAL INCIC CNARLDTTE LETASSTMN
+ IA CII TO CAIMIL 77 - ]IISIETTS _emil
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WEST DJATINGALEHPEKALONGAN 0m-- 409
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16 5 --c
m 1SEMARANG TIMUR
IUR T I
102 10 MAGELANG
GARUNG SALATIGA13068T
i 1 302 BOJOLALI
PURWOKERTO 1037
W SOLO U~JOGJAKATAI SOLO SE
EXHIBIT 105 CENTRAL JAVA LOAD 252 MW
CENTRAL JAVATJILATJAP POWER TO WEST JAVA 0 TRANSMISSION REQUIREMENTS 1977 - 19POWER FROM WEST JAVA 100 MW
OAD FLOW TEST 1-14SYSTEM OPERATION LINE CONTINGENCY 194 LOAD LEVEL - ALT a CHAS T MAIN INTRNATIlNALINCit
BOSTON CHARLOTTE CLIENT IN
IA HTS NIN 2 4
LDJELOK
105 103 SEMARANG
098 SEMARANG 1036 HARBOR
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45 85 7 104 TEIK SEMARANG
r TIMJR
1103
GARUNG i _ d--pow mm1SALATIGA v ---- 22 43
T--LTA POWER TO 10 WC L
103 LA BOJOLALI
10 CETA JAA OA25 MWGLN
sWJOGJAKATA
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0909 SOLO $i
- 108CENTRAL JAVA LOAD 252 MW EXHNIBIT _
POWER FROM WEST JAVA 0 TRANSMISSION REQUIREMENTS 1977 - If
__ - 1984 OPERATION NORMAL NSYSTEMLOAD FLOW TEST 1-1LIO LEVEL -ALT I i iCHAS T MAIN INEA IONINC
- MASSACHUSETTS BOSTON
CNARLOTTET _
IEN 2-O ff 1 494 -
UI 4
PEKALO -
0 996 SEMARANG 102 bull WEST DJATINGALEH
17-13701110 -1894 9 6 1 0 1
i
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TIMUR
m
m
10 SEMARANG HARBOR A
1 0 4 SEMARANGshy
m T DJELOK
102 10 MAGELANG
W JOGJAKARTASOOU
ENTR5AL JAVA LOAD 252 MW SOLOS
TJIATAP POWER TOMWEST JAVA 0O CENTRAL JAVA
POE0RMWS AA -SYSTEM OPERATION LINE CONTINGENCY
TRANSMISSION RERUIRENENTS 1977 LOAD FLOWTESVUT8
1984 LOAD LEVEL --ALT I
SB
CAS 1 VAIN INTEEOOATIS 0h S9 CNARLPTE CLIET1 S
bull CENTRAL JAVAU CANOAA 212 14E
--
098 PEKALONGAN
-1500
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102 - 7 0 GARUNGa 690
i 0 130
104 JlAPURWOKERTO
++CENTRAL JAVA LOAD
+105 + Dm
+POWER+-TJILATJA P TO WEST JAVA
POWER FROM WEST JAVA
SYSTEM OPERATION
-+--+ + +
103 S 05
SEMARANGSEMARANG 1036
WEST DJATINGALEH- HARBOR
ISEMARANGshy
1013 1A01LA
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W SOLO Ill JOGJAKARTA
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EXHIBIT 100 MW CENTRALJAVA
0 C ENTJAVA TRANSMISSION REQUIRENTS 117 - till
LINE CONTINGENCY LOAD FLOW TEST 3-11 1984 LOAD LEVEL - ALT I
C E CHAS T NAMt INTEMATIUALIN K VON[
BOSTON CNARLOTTE CLIENT InHAS A STTL KRTN CARK lNA 4 + N T fN GMLMA21011 4
i
The cost of adding the second circuit on a DT(SC) line
at some later date is estimated to be $11000mile
32 Substations
For the purpose of this analysis all substations are
assumed developed with standard main-and-transfer bus schemes The
cost of a 150 kV feeder position is assumed to be $150000
40 ALTERNATIVE TRANSMISSION EXPANSION SCHEMES
Load flow analyses outlined in the attached Appendix demonstrate
the requirement for the following future transmission additions for Alternatives
A and B defined in Section 3 (only uncommon facilities are indicated)
Case 1 Generation in Cilicap area
(a) Expansion Scheme A
1977 - DT(DC) Samarang Timur - Tegal - Purwokerto
(146 miles - 235 kin)
1989 - DT(DC) Garung - Purwokerto
(48 miles - 775 kin)
(b) Expansion Scheme B
1977 - DT(SC) Samarang Timur - Tegal - Purwokerto
- DT(SC) Garung - Purwokerto
1977 - 1980 - Add second circuit on DT(SC)
Samarang Timur - Tegal (915 miles - 147 kin)
1989 - Add second circuit on
(a) Garung - Purwokerto (48 miles - 775 kin)
(b) Tegal - Purwokerto (548 miles - 88 km)
By 1989 Schemes A and B will have the same transmission
facilities
The above schemes were developed on the following basis
(a) Transmission should be adequate for the transfer otiD-j
om Central Java to West Java or from West Java to Central Java up to
After 1984 the transfer capacity is increased to 100 MW in
either direction A transmission outage of one critical circuit is assumed
in the analysis Due to the very high isokeraunic level in the wet season
this is considered aminimum contingency requirement
(b) Generation will be developed in the Cilicap area with about
100 MW available in 1984
The requirement for transmission in 1977-1980 in Expansion
Scheme B is dictated by very poor voltage conditions resulting from the loss of any section of the Semarang - Tegal transmission while delivering 50 MW from Central Java to West Java over the circuitous route Samarang - DJelok -
Magelang - Purwokerto - Tegal (183 miles - 294 km)
The analysis shows that if generation is not developed in the
Cilicap area the following sequence of transmission additions wil be
required for the period after 1977
Case 2 No Generation in Cilicap area
(a) Expansion Scheme A
1984 - DT(DC) Garung - Purwokerto (This represents
an advancement from 1989 to 1984)
(b) Expansion Scheme B
1984 - Add second circuit on Garung - Purwokerto DT(SC) line
50 ECONOMIC ANALYSES
Exhibits 3 aid 4 show investment costs for base cases I and 2
outlined in Section 4 The second circuit Semarang - Tlmur to Tegal is assumed required in 1980 The present worth of investments for both
cases computed at discount rates of 12 and 15 - the range of opportunity
cost of capital in Indonesia - is shown below
$ x 103
Present Worth Discount Rate of 12 15
Case 1 (Generation at Cilicap) Scheme A 11882 11656
B 12070 11834
Difference infavor of A 188 178
Case 2 (No generation at Cilicap)
Scheme A 12510 12270 B 12231 12000
Difference in favor of B (281) (270)
Advancement of the requirement for the second circuit Semarang Timur - Tegal to 1977 would increase the cost of Scheme B as shown below
$ x103
Present Worth Discount Rata of
12 15 Case 1 (a)
Scheme A 11882 11656 B 12710 12589
Difference in favor of A 828 933
A comparison was also made of the economics of base Case 1 assuming transmission costs based on procurement of tower steel from India
The following applies shy
3$ x0
Present Worth Discount Rate of
12 15 Case 1 (b)
Scheme A 9498 9322 B 9830 91595
Difference infavor of A 332 273
IfScheme B is developed using ST transmission the resultant investments are shown inExhibit 5 and the present worth of costs are shown
below
$ x 103
Present Worth Discount Rate of
12 15
Case 3
Scheme A 11882 11656 B 12575 12060
The above analysis shows that provided generation isinstalled in the Cilicap area by 1984 Scheme A is less expensive than Scheme B The
economic advantage of Scheme A over B is not significant if the second circuit Semarang Timur - Tegal is delayed to 1980 in Scheme B However it would not be prudent to operate with one circuit from Semarang Timur - Tegal for
eoowhinr sons
(a) Voltage conditions during the emergency loss of any one line section Semarang - Tegal will be very poor resulting in possible loss of load
(b) Stability of the interconnected West Java Central Java system will not be retained for faults on the single circuit Samarang - Tegal transmission while transferring 50 MW from Central Java to West Java
The above reasons dic -two eee__ marag and Tegal This early requirement for the second circuit
enhances the relative economy of Scheme A (See Case 1 (a)
The analysis also shows that the use of DT(SC) instead of ST In
Scheme B results in the least present worth of costs (Compare Case 3 with
Case 1)
Although Case 2 shows an economic advantage for Scheme B it is considered very unlikely that generation will not be developed in the
Cilicap area by 1984 The proximity to a readily available source of fuel shythe Pertamina refinery - and the ideal harbor and siteing conditions in the Cilicap area strongly favor the development of steam generation in that area
60 RECOMMENDATIONS
Considering the economic evaluation outlined in Section 5 and the system requirement for a strong interconnection between the West Java and Central Java systems it is recommended that two circuits be provided from
-Zeai- Samarang in 1977 The adoption of DT(DC) towers results in o
The extension of DT(DC) transmission to Cilicap also represents the least cost solution and is therefore recommended for implementation in 1977
Garung hydro should be incorporated over DT(DC) radial transmission to Magelang
Loads along the Magelang - Garung - Purwokerto route can be supplied at 20 kV over distribution lines from 15020 kV substations at Garung and Purwokerto By 1984 the Garung - Purwokerto link will be closed and new 15020 kV subshystations could be developed to supply increased loads in the area
Economic Analysis
of Alternate Schemes
Case 1 Investment $ x 103
Scheme A Scheme B
- 1977 Transmission -146 mi $55000 $ 8050 -146 mi $42500 $ 6220 - 48 ml $42500 2040
Substations - 20 fdr position 3000 - 12 fdr position $11_ 0_ 0 1 00
$11050 $10060
-1980 Transmission
- 915 mi $11 000 1005
Substations -8 fdr positions 1 200$ 2205
-1989 Transmission
- 48 mi $55000 2640 - 48 m $11 000 528 - 548 mi $1Il000 604
Substations -4 fdr position 600 -4 fdr position 600
$ 3240 $ 1732
Exhibit 3
Economic Analysis
of Alternate Schemes
Case 2
Investment $ x 103
Scheme A Scheme B
-1977 (Same as Case 1) $11050 $10060
-1980 (Same as Case 1) - 2205
-1984 Transmission
-48 -48
mi $55000 mi $11000
2640 528
Substations - 4 fdr position 600 - 2 fdr position 300
-1989 Transmission
-548 mi $11000 604
Substations 2 fdr position 300
-1977
ECONOMIC ANALYSIS of Alternate Schemes
Case 3 Investment $ x 10 3
Scheme A Scheme B
- Transmission -146 mi $55000 8050-146 mi $34200 5000 - 48 mi $34200 1640
-Substations - 20 fdr position 3000 - 12 fdr position 1800
11050 8440 -1980
-Transmission -915 mi $34200 3130
-Substations 8 fdr position 1200
-1989 4330
-Transmission -48 mi $55000 2640-48 mi $34200 1640-548 mi $34200 1870
-Substations - 4 fdr position 600 - 4 fdr position 600
3240 4110
SEOURANG SEMARANG SHARBOR
PEKALONGAN WEST DJATINGALEHshy362 Mi 469 Mi deg 6 Mi 38 Mi z
TEII SEMARANG-
T TIUR
11I bull [ DJELOKl
U33 3ELA G SALATIGA-II 3l3M 251 Mi
BJOLALIP ft
4 PURWOKERTO
NOTE l lAconductors considered W JOGJAKARTA SOLO
iI 477 NCM-AC3R
SOLO SELEGEND
o150kV proposed by CT MAIN _ _ _ _ _ _ _IIT__TJILATJAP liA underUS AID loan agreement CENTRAL JAVA
am-- 150 kV recommended by CT MAIN TRANSISSION RE UIRENETS 1 shy
for service reliability 150 kV TlANiiSiSUll lST EN _ _ _ _ _ _ _A L T E R N A T E SCNEIE_A
150 kV planned by Federal Republic TLTERATE SCNEI Ali TVAL OPof Gearany CaAS T Muin INTEliAT I =A I UE INO
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All conductors considered 477 ECM-ACSR JO JAKARTA
II E OOSLEGEND - 28 i I t
TJILATJAP 150 kV considered as alternate EXIIT scheme by CT MAIN CETRAL JAVA TRANSMISSION REQUIREMENTS 1977 - 16
150 kiV RANSEISfiS ffiffi 150 kV planned by Federal Republic ALTERNATE SCHEME I of Germany HAS T lAIN INTEIATIINAL INIC S CAEI
UTE1 C40RLITTE 44Ein --SSAMUUUTTS MWlTI CANLINAI 21 48
Load Flow Analyses
Load flow studies were conducted to determine the capabilities of the two alternate transmission system developments outlined in Section 2 The study extended over a 12 year period 1977 - 1989 Summaries of the load flow cases run in the study are shown in Exhibits A B and C Flow and voltage conditions for each case represented in Exhibit A are also attached
Key load flows which influence the development of the alternate transmission schemes described in Section 2 of the report are described below
Alternate A
Test A - 8 1984 load level and 100 MW delivery to West Java no generation at Cilicap and contingency loss of one Pekalongan-Semarang circuit Voltages in the Ketenger system are unacceptably low
Test A - 13 Same as A shy 8 but with one circuit Garung-Purwokerto in-service Voltages and flows throughout the system are adequate
Test A - 12 Same ris A shy 8 but with generation in Cilicap Contingency loss of one Purwokerto - Tegal circuit Voltages and flows throughout the system are adequate
The above tests show that without generation in the Cilicap area a second transmission connection between the Tuntang and Ketenger systems is required on or before 1984
Alternate B
Test B-3 1977 loads and 50 MW delivery to West Java Contingency loss of Pekalongan - Semarang West transmission Voltages in the Central Java system are inadequate Stability of the Interconnected system is marginal due to large angles between Samarang and Jakarta generation
This test defines the requirement for a second circuit
between Tegal and Semarang in the early stages of
development of the Ketenger 150 kV transmission
system
Transmission requirements for 1989 were developed using engineering
Judgement The transmission additions resulted in the same number of circuits
for both alternatives A and B
CENTRAL JAVA
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LOAD FLOW TESTS ALTERNATIVE A
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12 TJILATJAP X TEOALOUT - PURiOKERTO pound n 105
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Exhibit B
CENTRAL JAVA TRANSMISSION REQUIREMENTS 1977 - 1989
LOAD FLOW TESTS ALTERNATIVE B
DESCRIPTION RESULTS TEST
PhR TRANSMISSIIN LINES LTS EFE I EAC E LOADED VLMINTERCANGENEST H IVA NORIAL ALL LINES SYSTEM LI1ES
LIAI1TH _ __ _ I NSERVICE
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Exhibit C
105
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w SOLOMoo n t JOGJAKATAi m CENTRAL JAVA LOAD 252 MW 81T
105 TJILATJAP POWER TO WEST JAVA 0 fCENTRAL JAVA
1POWER FROM WEST JAVA 100 MW TRANSMISSION REqUIREMEITS 19U
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S T MAIN INTENATIAL INCIC CNARLDTTE LETASSTMN
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IUR T I
102 10 MAGELANG
GARUNG SALATIGA13068T
i 1 302 BOJOLALI
PURWOKERTO 1037
W SOLO U~JOGJAKATAI SOLO SE
EXHIBIT 105 CENTRAL JAVA LOAD 252 MW
CENTRAL JAVATJILATJAP POWER TO WEST JAVA 0 TRANSMISSION REQUIREMENTS 1977 - 19POWER FROM WEST JAVA 100 MW
OAD FLOW TEST 1-14SYSTEM OPERATION LINE CONTINGENCY 194 LOAD LEVEL - ALT a CHAS T MAIN INTRNATIlNALINCit
BOSTON CHARLOTTE CLIENT IN
IA HTS NIN 2 4
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105 103 SEMARANG
098 SEMARANG 1036 HARBOR
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r TIMJR
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- 108CENTRAL JAVA LOAD 252 MW EXHNIBIT _
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__ - 1984 OPERATION NORMAL NSYSTEMLOAD FLOW TEST 1-1LIO LEVEL -ALT I i iCHAS T MAIN INEA IONINC
- MASSACHUSETTS BOSTON
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1 0 4 SEMARANGshy
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102 10 MAGELANG
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ENTR5AL JAVA LOAD 252 MW SOLOS
TJIATAP POWER TOMWEST JAVA 0O CENTRAL JAVA
POE0RMWS AA -SYSTEM OPERATION LINE CONTINGENCY
TRANSMISSION RERUIRENENTS 1977 LOAD FLOWTESVUT8
1984 LOAD LEVEL --ALT I
SB
CAS 1 VAIN INTEEOOATIS 0h S9 CNARLPTE CLIET1 S
bull CENTRAL JAVAU CANOAA 212 14E
--
098 PEKALONGAN
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+105 + Dm
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-+--+ + +
103 S 05
SEMARANGSEMARANG 1036
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ISEMARANGshy
1013 1A01LA
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EXHIBIT 100 MW CENTRALJAVA
0 C ENTJAVA TRANSMISSION REQUIRENTS 117 - till
LINE CONTINGENCY LOAD FLOW TEST 3-11 1984 LOAD LEVEL - ALT I
C E CHAS T NAMt INTEMATIUALIN K VON[
BOSTON CNARLOTTE CLIENT InHAS A STTL KRTN CARK lNA 4 + N T fN GMLMA21011 4
i
By 1989 Schemes A and B will have the same transmission
facilities
The above schemes were developed on the following basis
(a) Transmission should be adequate for the transfer otiD-j
om Central Java to West Java or from West Java to Central Java up to
After 1984 the transfer capacity is increased to 100 MW in
either direction A transmission outage of one critical circuit is assumed
in the analysis Due to the very high isokeraunic level in the wet season
this is considered aminimum contingency requirement
(b) Generation will be developed in the Cilicap area with about
100 MW available in 1984
The requirement for transmission in 1977-1980 in Expansion
Scheme B is dictated by very poor voltage conditions resulting from the loss of any section of the Semarang - Tegal transmission while delivering 50 MW from Central Java to West Java over the circuitous route Samarang - DJelok -
Magelang - Purwokerto - Tegal (183 miles - 294 km)
The analysis shows that if generation is not developed in the
Cilicap area the following sequence of transmission additions wil be
required for the period after 1977
Case 2 No Generation in Cilicap area
(a) Expansion Scheme A
1984 - DT(DC) Garung - Purwokerto (This represents
an advancement from 1989 to 1984)
(b) Expansion Scheme B
1984 - Add second circuit on Garung - Purwokerto DT(SC) line
50 ECONOMIC ANALYSES
Exhibits 3 aid 4 show investment costs for base cases I and 2
outlined in Section 4 The second circuit Semarang - Tlmur to Tegal is assumed required in 1980 The present worth of investments for both
cases computed at discount rates of 12 and 15 - the range of opportunity
cost of capital in Indonesia - is shown below
$ x 103
Present Worth Discount Rate of 12 15
Case 1 (Generation at Cilicap) Scheme A 11882 11656
B 12070 11834
Difference infavor of A 188 178
Case 2 (No generation at Cilicap)
Scheme A 12510 12270 B 12231 12000
Difference in favor of B (281) (270)
Advancement of the requirement for the second circuit Semarang Timur - Tegal to 1977 would increase the cost of Scheme B as shown below
$ x103
Present Worth Discount Rata of
12 15 Case 1 (a)
Scheme A 11882 11656 B 12710 12589
Difference in favor of A 828 933
A comparison was also made of the economics of base Case 1 assuming transmission costs based on procurement of tower steel from India
The following applies shy
3$ x0
Present Worth Discount Rate of
12 15 Case 1 (b)
Scheme A 9498 9322 B 9830 91595
Difference infavor of A 332 273
IfScheme B is developed using ST transmission the resultant investments are shown inExhibit 5 and the present worth of costs are shown
below
$ x 103
Present Worth Discount Rate of
12 15
Case 3
Scheme A 11882 11656 B 12575 12060
The above analysis shows that provided generation isinstalled in the Cilicap area by 1984 Scheme A is less expensive than Scheme B The
economic advantage of Scheme A over B is not significant if the second circuit Semarang Timur - Tegal is delayed to 1980 in Scheme B However it would not be prudent to operate with one circuit from Semarang Timur - Tegal for
eoowhinr sons
(a) Voltage conditions during the emergency loss of any one line section Semarang - Tegal will be very poor resulting in possible loss of load
(b) Stability of the interconnected West Java Central Java system will not be retained for faults on the single circuit Samarang - Tegal transmission while transferring 50 MW from Central Java to West Java
The above reasons dic -two eee__ marag and Tegal This early requirement for the second circuit
enhances the relative economy of Scheme A (See Case 1 (a)
The analysis also shows that the use of DT(SC) instead of ST In
Scheme B results in the least present worth of costs (Compare Case 3 with
Case 1)
Although Case 2 shows an economic advantage for Scheme B it is considered very unlikely that generation will not be developed in the
Cilicap area by 1984 The proximity to a readily available source of fuel shythe Pertamina refinery - and the ideal harbor and siteing conditions in the Cilicap area strongly favor the development of steam generation in that area
60 RECOMMENDATIONS
Considering the economic evaluation outlined in Section 5 and the system requirement for a strong interconnection between the West Java and Central Java systems it is recommended that two circuits be provided from
-Zeai- Samarang in 1977 The adoption of DT(DC) towers results in o
The extension of DT(DC) transmission to Cilicap also represents the least cost solution and is therefore recommended for implementation in 1977
Garung hydro should be incorporated over DT(DC) radial transmission to Magelang
Loads along the Magelang - Garung - Purwokerto route can be supplied at 20 kV over distribution lines from 15020 kV substations at Garung and Purwokerto By 1984 the Garung - Purwokerto link will be closed and new 15020 kV subshystations could be developed to supply increased loads in the area
Economic Analysis
of Alternate Schemes
Case 1 Investment $ x 103
Scheme A Scheme B
- 1977 Transmission -146 mi $55000 $ 8050 -146 mi $42500 $ 6220 - 48 ml $42500 2040
Substations - 20 fdr position 3000 - 12 fdr position $11_ 0_ 0 1 00
$11050 $10060
-1980 Transmission
- 915 mi $11 000 1005
Substations -8 fdr positions 1 200$ 2205
-1989 Transmission
- 48 mi $55000 2640 - 48 m $11 000 528 - 548 mi $1Il000 604
Substations -4 fdr position 600 -4 fdr position 600
$ 3240 $ 1732
Exhibit 3
Economic Analysis
of Alternate Schemes
Case 2
Investment $ x 103
Scheme A Scheme B
-1977 (Same as Case 1) $11050 $10060
-1980 (Same as Case 1) - 2205
-1984 Transmission
-48 -48
mi $55000 mi $11000
2640 528
Substations - 4 fdr position 600 - 2 fdr position 300
-1989 Transmission
-548 mi $11000 604
Substations 2 fdr position 300
-1977
ECONOMIC ANALYSIS of Alternate Schemes
Case 3 Investment $ x 10 3
Scheme A Scheme B
- Transmission -146 mi $55000 8050-146 mi $34200 5000 - 48 mi $34200 1640
-Substations - 20 fdr position 3000 - 12 fdr position 1800
11050 8440 -1980
-Transmission -915 mi $34200 3130
-Substations 8 fdr position 1200
-1989 4330
-Transmission -48 mi $55000 2640-48 mi $34200 1640-548 mi $34200 1870
-Substations - 4 fdr position 600 - 4 fdr position 600
3240 4110
SEOURANG SEMARANG SHARBOR
PEKALONGAN WEST DJATINGALEHshy362 Mi 469 Mi deg 6 Mi 38 Mi z
TEII SEMARANG-
T TIUR
11I bull [ DJELOKl
U33 3ELA G SALATIGA-II 3l3M 251 Mi
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4 PURWOKERTO
NOTE l lAconductors considered W JOGJAKARTA SOLO
iI 477 NCM-AC3R
SOLO SELEGEND
o150kV proposed by CT MAIN _ _ _ _ _ _ _IIT__TJILATJAP liA underUS AID loan agreement CENTRAL JAVA
am-- 150 kV recommended by CT MAIN TRANSISSION RE UIRENETS 1 shy
for service reliability 150 kV TlANiiSiSUll lST EN _ _ _ _ _ _ _A L T E R N A T E SCNEIE_A
150 kV planned by Federal Republic TLTERATE SCNEI Ali TVAL OPof Gearany CaAS T Muin INTEliAT I =A I UE INO
OWAWVA1TLE COPY of eanyI s
IAUU5ITT nUTNAS WTI =131A4
- O
SIRA SEMARANG
SPLEKALNGAN PEKLONA SEMARANG DAGLHHARBOR -WEST DJATNGALEH
TEALT rem
M I SEMARANG
T TIMUR
~c1
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I IPURWOKERTO
II NOTE
All conductors considered 477 ECM-ACSR JO JAKARTA
II E OOSLEGEND - 28 i I t
TJILATJAP 150 kV considered as alternate EXIIT scheme by CT MAIN CETRAL JAVA TRANSMISSION REQUIREMENTS 1977 - 16
150 kiV RANSEISfiS ffiffi 150 kV planned by Federal Republic ALTERNATE SCHEME I of Germany HAS T lAIN INTEIATIINAL INIC S CAEI
UTE1 C40RLITTE 44Ein --SSAMUUUTTS MWlTI CANLINAI 21 48
Load Flow Analyses
Load flow studies were conducted to determine the capabilities of the two alternate transmission system developments outlined in Section 2 The study extended over a 12 year period 1977 - 1989 Summaries of the load flow cases run in the study are shown in Exhibits A B and C Flow and voltage conditions for each case represented in Exhibit A are also attached
Key load flows which influence the development of the alternate transmission schemes described in Section 2 of the report are described below
Alternate A
Test A - 8 1984 load level and 100 MW delivery to West Java no generation at Cilicap and contingency loss of one Pekalongan-Semarang circuit Voltages in the Ketenger system are unacceptably low
Test A - 13 Same as A shy 8 but with one circuit Garung-Purwokerto in-service Voltages and flows throughout the system are adequate
Test A - 12 Same ris A shy 8 but with generation in Cilicap Contingency loss of one Purwokerto - Tegal circuit Voltages and flows throughout the system are adequate
The above tests show that without generation in the Cilicap area a second transmission connection between the Tuntang and Ketenger systems is required on or before 1984
Alternate B
Test B-3 1977 loads and 50 MW delivery to West Java Contingency loss of Pekalongan - Semarang West transmission Voltages in the Central Java system are inadequate Stability of the Interconnected system is marginal due to large angles between Samarang and Jakarta generation
This test defines the requirement for a second circuit
between Tegal and Semarang in the early stages of
development of the Ketenger 150 kV transmission
system
Transmission requirements for 1989 were developed using engineering
Judgement The transmission additions resulted in the same number of circuits
for both alternatives A and B
CENTRAL JAVA
TRAMISUISSION REIJIREMENTS 1877 - 199
ais 1977 1S u 1h6 250 Wlw M 111111I1O SMS 1 0 0 0eTJIULTJW Ume 1M 111W111M) ______ I__MlTIiceIS 50 50 10 INo
msum tag
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113161
COiTRAL JAVA TRANSMISSION REQUIREMENTS 1977 - 198
LOAD FLOW TESTS ALTERNATIVE A
TEST DESCRIPTION RESULTS
Is LOAN
ITNEATIT
PLIERINTENCANOEITN WEST JAVA
V
TRAMSNISSINN LINES NORMAL ALL LINES
IN SERVICE
SYSTEPWEECE
LINESLIADED
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i IECTIN OUT ONE SINiLE LINE owFarcceptable h =havyt = modim KETEISEN AFil TO OUT OF SERVICE I=Iaisdoqnte I = light SYST[E
I X NORMAL very
2 50 NORMAL 03
3 SpoundEARAN X SEN 1 - PEKALONGANOUT mIn 10
4ONLY - X~ SEN W - PEKALONiAN h 091 5 X NORMAL i 105 0 -4SEN I - PEKALONGAN
X nut_ _ I 105
7 X NORMAL a h 032
Xox SEN W - PEKALONGAN OUT I
veryh 070
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OUT 1 - PEKALONGAN
I h 105
11 100 Mw at X NORMAL _ U 101
12 TJILATJAP X TEOALOUT - PURiOKERTO pound n 105
13 SEMARANG SEN W - PEKALONGAN OUTABHO SINOLE CIRCUIT DETWEENPONLYPUiWOENTO AND CAUNG 1 105
Exhibit B
CENTRAL JAVA TRANSMISSION REQUIREMENTS 1977 - 1989
LOAD FLOW TESTS ALTERNATIVE B
DESCRIPTION RESULTS TEST
PhR TRANSMISSIIN LINES LTS EFE I EAC E LOADED VLMINTERCANGENEST H IVA NORIAL ALL LINES SYSTEM LI1ES
LIAI1TH _ __ _ I NSERVICE
= LO DIE EIATI IO-H_ e d h=h eavy shy OgaIapound I EIIDIRECTION OU ahl edi m KE EIERMLEVEL = aocept =
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9 KALO GAN - T GAL I I h 0 02
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vahry - PRWOKERTO I h0 71
SrTEOALX OUT OUTTJILAT AP10 PUR OKERTO h 095 E AL - - TEGA 0
ADDED 2nd CIRCUIT SEN11 2
Exhibit C
105
105
107 SEMARANG 105 SEARAN
PEKALONGAN WEST DJATINGALEH HARBOR
212-p- 1e 10 6--- 0-180
TEL IPA SEMARANGshy|41 1 61 TIMUR
MAGELANG
108 0 i PURWOKERTO I
1084
SOLOU2
i CENTRAL JAVA LOAD 1235 MWEI i
0 bullSOLOLS PURWOERTO 8 1
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pSYSTEM OPERATION NO4AL LOAD FL~rlTESTTA
CHAS 1971 LOAD LEVEL - ALT
T MAIN INTElATIUALIC Ai|
1_0_ 1 0 9UN 1Sf C~aULITTL GIBE Ushy
30
---
105105105i SEMARANG
104 SEMARANG 105AR HARBORWEST DJATINGALEH 0shy111--104073 7 PEKALONGAN -834
9 9 10513 123 145 - - SEMARANG-TEBAL TII4UR
104 o 5DJELOK
103103 GARUNG L SALATMIGGA
BOJOLAL I
103 PURWOKERTO
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CENTRAL JAVA LOAD 1235 MW E 103 EDN I1IT
TJILATJAP POWER TO WEST JAVA 500 MWA__T_7______ CENTRAL JAVA
POWER FROM WEST JAVA 0 TRANSMISSION REQUIRENENTS 197 19i
LOAD FLOW TEST A-ZSYSTEM OPERATION NORMAL 1977 LOAD LEVEL - ALT A
-bull~ T MAIN INTEEATIBUL ICHAS -4bullUSlTo CUMLITI CLIE NTis
MSp VTL--U lU 41PANA
104 105
101 SEMARANG 1 045 SEMARANG PEKALONGAN WEST DJATINGALEH - m HARBOR
i6~3-1 34 36 105
TEGAL i I m-TIMUR SEMARANGshy
1104
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UWOETBOJOLAL I10
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W SOLO N
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EXHIBITTJILATJAP POWER TO WEST JAVA 500 MW P F E VCENTRAL JAVAPOWER FROM WEST JAVA 0 TRANSMISSION REQUIREMENTS J77 lse SYSTEM OPERATION LINE CONTINGENCY LOAD FLOW TEIT A-
Onedeg- -Ji ekoys- fA j w 1977 LOAD LEVEL - ALT A
4 AAVfSk CHAS T MAIN INTENATIGUUAL INCf
-U TTU N11 IlA 04L- CU M 1
105 103
SEMARANG 1036 SEMARAG
WEST DJATINGALEN HARBORPEKALONGAN 1020 4-125 7 -s-142 4 _ 0
TEGA rL SEMARANGshy75 304 3880 S TIMUR
co
bo DJELOK 10
MAGELANG GARUNG MA- A SALAT IGA
p BOJOLAL
W m~JOGJAKARTA SOLO N
w l CENTRAL JAVA LOAD 252 MW E 0
CE TR L AVTJILATJAP POWER TO WEST JAVA 50 MWTIAJPCENTRAL JAVA
POWER FROM WEST JAVA 0 TRANSMISSION REQUIREMENTS 1977 - 19S LOAD FLOW TELTSYSTEM OPERATION LINE CONTINGENCY 1984 LOAD LEVEL - ALTi4M- 01DIwk e ek r 7 _ofp
S- jCHAS T MAIN INTERNATIONALo INC
UOSTON CNARLOTTE CLIT -----_ _ __ _ ___TTTN CAROLINA M0
AA
i 404
499- 105
PEKALONGAN 331i- -
1045 SEMARANG WEST
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CENTRAL JAVA TRANSMISSION REQUIRENENTS 1977 - 1
LOAD FLOU TEST A-5 1984 LOAD LEVEL -A LT A
CHAS T MAIN INTEMTIOALNC BSTMN CeuroARLITTE 1CLIIn JUN --- U
-ASSACNUSETI- _JIUTN iANILIA M2NI 44 -
104 105 SEMARAN
1055 SEMARANG 104 SEMARANG
WEST DJATINGALEH _ HARBORPEKALONGAN
TEGAL
165 189 1095
NONNILT I GAR
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10UNG
11055
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CENTRAL JAVA LOAD 252 MW E
POWER TO WEST JAVA 0 EMWIITTJILATJAP POETOWSJAA0_______________ POWERAFOWECENTRAL JAVA
____
TRANSMISSION REQUIREMENTS 1977 - 165 SYSTEM OPERATION LINE CONTINGENCY LOAD FLOW TEST A-111
1984 LOAD LEVEL - ALT I
INTEMATIONAL INC OW 12STm CHALITE IN
CHAS T MAIN 01L CLINT
IMANSEL- INT3l CAKIMAI M31 0T
105
105103
1034 SEMARANGSEMARANG091 HARBORWEST DJATINGALEHPE
-- 1547 -a-1782 -1953 4-2201
8344-3 48 4 4 4 -0-5171-il 102
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7 21984 LoAD LEVEL - ALT A CHAS T MAIN INTEMATImUAL ila
- S BOSTONM~rTTZ- CNARLITTE CLIENTre L JU -
NS ANU TIL- KIM CARILINA =I1 49
i
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103
DJATINGALEH --2350
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098 SOLO S CENTRAL JAVA LOAD 252 MW E
z p POWER TO WEST JAVA 100 MW C EXHIBIT
POWER FROM WEST JAVA 0 TRANSMISSION REQUIREMENTS 177 - IOo
SYSTEM OPERATION LINE CONTINGENCY LOAD FLOW TEST A-O 1984 LOAD LEVEL - ALT B
CHAS T MAIN INIZMATINAL INKC S E BOSTON CNALOTTE CLIIT -
-ISCVETI IT CAMINA M31 4I
104 105
104 SEMARANG 104 SEMARANG
PEKALONGAN WEST DJATINGALEH -= HARBOR - - 1476- 1276 1070 --1026
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19e4 LOAD LEVEL -ALT A CHAS T MAIN INTEEATIINALIC
inol CHARLTTE LINTC T _SAwul-lc rAL-r
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--shye1475
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1034 PEKALONGAN
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0 1OO MW
LINE CONTINGENCY
E
CENTRAL JAVA ElBIT
TRANSMISSION REQUIRENENTS 177 - 1
LOAD FLOW TEST A- 1984 LOAD LEVEL - ALT I
CHAS T MAIN INTEENATIONAL 9
IIISTIM CNARLOTTE CL MASCIIU11 -INCAWSINAI 1U144 W~
1115TEBAL
i
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- 52 4--702 806
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CENTRAL JAVA LOAD 252 MW 105
TO JAVA 100 MWTJILATJAPAT POWER WESTI J P OWERFROMWESCENTRAL
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105 SEMARANG104
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-W163104 _SEMARANG-I I TIMUR
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JAVA TRANSMISSION REQUIRENEnTS 1977 - IOU
LOAD FLOW TEST A-1i 1984 LOAD LEVEL - ALT A
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1JILTJA 1 05TJILATJAP
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POWER FROM WEST JAVA SYSTEM OPERATION
252 MW 100 MW
0 LINE CONTINGENCY
E 9SL EXIT
CENTRAL JAVA
CETALJVTRANSMISSION REQUIREMENTS 1977 - 135 LOAD FLOW TEST A-12
1984 LOAD LEVEL - ALT I
CHAS T MAIN INTEMATIONAL I-shy-OSTIM CNALOTTE CLIENT JOB
-II STIL T_ARTN 231I 1 4
103 105
094 SEMARANG 1035 SEMARANG
-m-10 49 PEKALONGAN
p-1290 WEST DJATINGALEH
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12s-3 1I1-5M 104
096 098
485 GARUNG 535 - MAGELANG
230 4401 4-0 L O---- 93 BOJOLAL I
093 I i PURWOKERTO
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90 MSOLO $ CENTRAL JAVA LOAD 252 MW E
092 EXHIIT TJILATJAP POWER TO WEST JAVAPOWERTJPRJCENTRALEPOWER FROM WEST JAVA
100 MW 0 JAVATRANSMISSION REQUIREMENTS 1977 - 196O
SYSTEM OPERATION LINE CONTINGENCY LOAD FLOW TEST A-13 1984 LOAD LEVEL - ALTJA
S- - SCHAS T MAIN INTEMATIONAL INC BOSTON CHARLITTE CLIEt
S III TN allmLlINA 2U1 4 -
i 05
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105 SEMARANG WEST
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LOAD FLOW TEST B-1 1971 LOAD LEVEL - ALT
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r 101 CENTRAL JAVA OD 1235 1MW XII TJILATJAP POWER TO WEST JAVA 500 MW CENTRAL JAVA
POWER FROM WEST JAVA 0 TRANSMISSION REQUIREMENTS 1977 - 1969 SYSTEM OPERATIONv NORMAL LOAD FLOW TEST 3-2
l -lt i 1977 LOAD LEVEL - ALT I H Cl n--r k i k CHAS T MAIN INTERNATIAL INC
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MSAHSTTS IRNCOLA 2881
104 ( 105
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CENTRAL JAVA TRANSMISSION REQUIREMENTS 1177 -1S97
LOAD FLOW TEST 8-4 1984 LOAD LEVEL - ALT 3
CHAS T MAIN INTERNATIONAL INCJ E EMU
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TEG L1 77 4- 200 290 -004
i____I_ SEMARANG TIMUR
0985350102 DJELOK
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- IPOWER FROM WEST JAVA 0 TRANSMIS31ON REQUIREMENTS 1077 lg-
SYSTEM OPERATION LINE CONTINGENCY LA LVTS shy1984 LOAD LEVEL - ALT D -- C~~HAST MAIN INT|IMATINAL INCI I d shy
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33244- 191 47 104 I SEMARANGLJ
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SYSTEM OPERATION LINE CONTINGENCY LOAD FLOW TEST 3-71984 LOAD LEVEL - ALT I
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LOAD PLOW TEST 8-8LINE CONTINENCY 1984 LOAD LEEL - ALT
CHAS T MAIN INTERNATIONAL INC s
BOSTON CNARLOTTE CLIENT MASSACHUSEITS NORTN CA 261i
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1 shy4
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332 -- 165 0-07 a 1137 TEGAL
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SYSTEM OPERATION LOAD FLOW TEST 1-9 1984 LOAD LEVEL - ALTD
CHAS T MAIN INTERNATIAL INCISCAL -BOSTON CNARLITTE CLIENT 0
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-- SYSTEM OPERATION LINE CONTINGENCY LOAD FLOW TEST l-1O - 1964 LOAD LEVEL - ALT$
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S T MAIN INTENATIAL INCIC CNARLDTTE LETASSTMN
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102 10 MAGELANG
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i 1 302 BOJOLALI
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EXHIBIT 105 CENTRAL JAVA LOAD 252 MW
CENTRAL JAVATJILATJAP POWER TO WEST JAVA 0 TRANSMISSION REQUIREMENTS 1977 - 19POWER FROM WEST JAVA 100 MW
OAD FLOW TEST 1-14SYSTEM OPERATION LINE CONTINGENCY 194 LOAD LEVEL - ALT a CHAS T MAIN INTRNATIlNALINCit
BOSTON CHARLOTTE CLIENT IN
IA HTS NIN 2 4
LDJELOK
105 103 SEMARANG
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45 85 7 104 TEIK SEMARANG
r TIMJR
1103
GARUNG i _ d--pow mm1SALATIGA v ---- 22 43
T--LTA POWER TO 10 WC L
103 LA BOJOLALI
10 CETA JAA OA25 MWGLN
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0909 SOLO $i
- 108CENTRAL JAVA LOAD 252 MW EXHNIBIT _
POWER FROM WEST JAVA 0 TRANSMISSION REQUIREMENTS 1977 - If
__ - 1984 OPERATION NORMAL NSYSTEMLOAD FLOW TEST 1-1LIO LEVEL -ALT I i iCHAS T MAIN INEA IONINC
- MASSACHUSETTS BOSTON
CNARLOTTET _
IEN 2-O ff 1 494 -
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0 996 SEMARANG 102 bull WEST DJATINGALEH
17-13701110 -1894 9 6 1 0 1
i
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m
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1 0 4 SEMARANGshy
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ENTR5AL JAVA LOAD 252 MW SOLOS
TJIATAP POWER TOMWEST JAVA 0O CENTRAL JAVA
POE0RMWS AA -SYSTEM OPERATION LINE CONTINGENCY
TRANSMISSION RERUIRENENTS 1977 LOAD FLOWTESVUT8
1984 LOAD LEVEL --ALT I
SB
CAS 1 VAIN INTEEOOATIS 0h S9 CNARLPTE CLIET1 S
bull CENTRAL JAVAU CANOAA 212 14E
--
098 PEKALONGAN
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i 0 130
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++CENTRAL JAVA LOAD
+105 + Dm
+POWER+-TJILATJA P TO WEST JAVA
POWER FROM WEST JAVA
SYSTEM OPERATION
-+--+ + +
103 S 05
SEMARANGSEMARANG 1036
WEST DJATINGALEH- HARBOR
ISEMARANGshy
1013 1A01LA
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-SOLOSL 252 MW El l
EXHIBIT 100 MW CENTRALJAVA
0 C ENTJAVA TRANSMISSION REQUIRENTS 117 - till
LINE CONTINGENCY LOAD FLOW TEST 3-11 1984 LOAD LEVEL - ALT I
C E CHAS T NAMt INTEMATIUALIN K VON[
BOSTON CNARLOTTE CLIENT InHAS A STTL KRTN CARK lNA 4 + N T fN GMLMA21011 4
i
50 ECONOMIC ANALYSES
Exhibits 3 aid 4 show investment costs for base cases I and 2
outlined in Section 4 The second circuit Semarang - Tlmur to Tegal is assumed required in 1980 The present worth of investments for both
cases computed at discount rates of 12 and 15 - the range of opportunity
cost of capital in Indonesia - is shown below
$ x 103
Present Worth Discount Rate of 12 15
Case 1 (Generation at Cilicap) Scheme A 11882 11656
B 12070 11834
Difference infavor of A 188 178
Case 2 (No generation at Cilicap)
Scheme A 12510 12270 B 12231 12000
Difference in favor of B (281) (270)
Advancement of the requirement for the second circuit Semarang Timur - Tegal to 1977 would increase the cost of Scheme B as shown below
$ x103
Present Worth Discount Rata of
12 15 Case 1 (a)
Scheme A 11882 11656 B 12710 12589
Difference in favor of A 828 933
A comparison was also made of the economics of base Case 1 assuming transmission costs based on procurement of tower steel from India
The following applies shy
3$ x0
Present Worth Discount Rate of
12 15 Case 1 (b)
Scheme A 9498 9322 B 9830 91595
Difference infavor of A 332 273
IfScheme B is developed using ST transmission the resultant investments are shown inExhibit 5 and the present worth of costs are shown
below
$ x 103
Present Worth Discount Rate of
12 15
Case 3
Scheme A 11882 11656 B 12575 12060
The above analysis shows that provided generation isinstalled in the Cilicap area by 1984 Scheme A is less expensive than Scheme B The
economic advantage of Scheme A over B is not significant if the second circuit Semarang Timur - Tegal is delayed to 1980 in Scheme B However it would not be prudent to operate with one circuit from Semarang Timur - Tegal for
eoowhinr sons
(a) Voltage conditions during the emergency loss of any one line section Semarang - Tegal will be very poor resulting in possible loss of load
(b) Stability of the interconnected West Java Central Java system will not be retained for faults on the single circuit Samarang - Tegal transmission while transferring 50 MW from Central Java to West Java
The above reasons dic -two eee__ marag and Tegal This early requirement for the second circuit
enhances the relative economy of Scheme A (See Case 1 (a)
The analysis also shows that the use of DT(SC) instead of ST In
Scheme B results in the least present worth of costs (Compare Case 3 with
Case 1)
Although Case 2 shows an economic advantage for Scheme B it is considered very unlikely that generation will not be developed in the
Cilicap area by 1984 The proximity to a readily available source of fuel shythe Pertamina refinery - and the ideal harbor and siteing conditions in the Cilicap area strongly favor the development of steam generation in that area
60 RECOMMENDATIONS
Considering the economic evaluation outlined in Section 5 and the system requirement for a strong interconnection between the West Java and Central Java systems it is recommended that two circuits be provided from
-Zeai- Samarang in 1977 The adoption of DT(DC) towers results in o
The extension of DT(DC) transmission to Cilicap also represents the least cost solution and is therefore recommended for implementation in 1977
Garung hydro should be incorporated over DT(DC) radial transmission to Magelang
Loads along the Magelang - Garung - Purwokerto route can be supplied at 20 kV over distribution lines from 15020 kV substations at Garung and Purwokerto By 1984 the Garung - Purwokerto link will be closed and new 15020 kV subshystations could be developed to supply increased loads in the area
Economic Analysis
of Alternate Schemes
Case 1 Investment $ x 103
Scheme A Scheme B
- 1977 Transmission -146 mi $55000 $ 8050 -146 mi $42500 $ 6220 - 48 ml $42500 2040
Substations - 20 fdr position 3000 - 12 fdr position $11_ 0_ 0 1 00
$11050 $10060
-1980 Transmission
- 915 mi $11 000 1005
Substations -8 fdr positions 1 200$ 2205
-1989 Transmission
- 48 mi $55000 2640 - 48 m $11 000 528 - 548 mi $1Il000 604
Substations -4 fdr position 600 -4 fdr position 600
$ 3240 $ 1732
Exhibit 3
Economic Analysis
of Alternate Schemes
Case 2
Investment $ x 103
Scheme A Scheme B
-1977 (Same as Case 1) $11050 $10060
-1980 (Same as Case 1) - 2205
-1984 Transmission
-48 -48
mi $55000 mi $11000
2640 528
Substations - 4 fdr position 600 - 2 fdr position 300
-1989 Transmission
-548 mi $11000 604
Substations 2 fdr position 300
-1977
ECONOMIC ANALYSIS of Alternate Schemes
Case 3 Investment $ x 10 3
Scheme A Scheme B
- Transmission -146 mi $55000 8050-146 mi $34200 5000 - 48 mi $34200 1640
-Substations - 20 fdr position 3000 - 12 fdr position 1800
11050 8440 -1980
-Transmission -915 mi $34200 3130
-Substations 8 fdr position 1200
-1989 4330
-Transmission -48 mi $55000 2640-48 mi $34200 1640-548 mi $34200 1870
-Substations - 4 fdr position 600 - 4 fdr position 600
3240 4110
SEOURANG SEMARANG SHARBOR
PEKALONGAN WEST DJATINGALEHshy362 Mi 469 Mi deg 6 Mi 38 Mi z
TEII SEMARANG-
T TIUR
11I bull [ DJELOKl
U33 3ELA G SALATIGA-II 3l3M 251 Mi
BJOLALIP ft
4 PURWOKERTO
NOTE l lAconductors considered W JOGJAKARTA SOLO
iI 477 NCM-AC3R
SOLO SELEGEND
o150kV proposed by CT MAIN _ _ _ _ _ _ _IIT__TJILATJAP liA underUS AID loan agreement CENTRAL JAVA
am-- 150 kV recommended by CT MAIN TRANSISSION RE UIRENETS 1 shy
for service reliability 150 kV TlANiiSiSUll lST EN _ _ _ _ _ _ _A L T E R N A T E SCNEIE_A
150 kV planned by Federal Republic TLTERATE SCNEI Ali TVAL OPof Gearany CaAS T Muin INTEliAT I =A I UE INO
OWAWVA1TLE COPY of eanyI s
IAUU5ITT nUTNAS WTI =131A4
- O
SIRA SEMARANG
SPLEKALNGAN PEKLONA SEMARANG DAGLHHARBOR -WEST DJATNGALEH
TEALT rem
M I SEMARANG
T TIMUR
~c1
o-GARUNG 343 NiSALATI GA
I IPURWOKERTO
II NOTE
All conductors considered 477 ECM-ACSR JO JAKARTA
II E OOSLEGEND - 28 i I t
TJILATJAP 150 kV considered as alternate EXIIT scheme by CT MAIN CETRAL JAVA TRANSMISSION REQUIREMENTS 1977 - 16
150 kiV RANSEISfiS ffiffi 150 kV planned by Federal Republic ALTERNATE SCHEME I of Germany HAS T lAIN INTEIATIINAL INIC S CAEI
UTE1 C40RLITTE 44Ein --SSAMUUUTTS MWlTI CANLINAI 21 48
Load Flow Analyses
Load flow studies were conducted to determine the capabilities of the two alternate transmission system developments outlined in Section 2 The study extended over a 12 year period 1977 - 1989 Summaries of the load flow cases run in the study are shown in Exhibits A B and C Flow and voltage conditions for each case represented in Exhibit A are also attached
Key load flows which influence the development of the alternate transmission schemes described in Section 2 of the report are described below
Alternate A
Test A - 8 1984 load level and 100 MW delivery to West Java no generation at Cilicap and contingency loss of one Pekalongan-Semarang circuit Voltages in the Ketenger system are unacceptably low
Test A - 13 Same as A shy 8 but with one circuit Garung-Purwokerto in-service Voltages and flows throughout the system are adequate
Test A - 12 Same ris A shy 8 but with generation in Cilicap Contingency loss of one Purwokerto - Tegal circuit Voltages and flows throughout the system are adequate
The above tests show that without generation in the Cilicap area a second transmission connection between the Tuntang and Ketenger systems is required on or before 1984
Alternate B
Test B-3 1977 loads and 50 MW delivery to West Java Contingency loss of Pekalongan - Semarang West transmission Voltages in the Central Java system are inadequate Stability of the Interconnected system is marginal due to large angles between Samarang and Jakarta generation
This test defines the requirement for a second circuit
between Tegal and Semarang in the early stages of
development of the Ketenger 150 kV transmission
system
Transmission requirements for 1989 were developed using engineering
Judgement The transmission additions resulted in the same number of circuits
for both alternatives A and B
CENTRAL JAVA
TRAMISUISSION REIJIREMENTS 1877 - 199
ais 1977 1S u 1h6 250 Wlw M 111111I1O SMS 1 0 0 0eTJIULTJW Ume 1M 111W111M) ______ I__MlTIiceIS 50 50 10 INo
msum tag
a n-
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113161
COiTRAL JAVA TRANSMISSION REQUIREMENTS 1977 - 198
LOAD FLOW TESTS ALTERNATIVE A
TEST DESCRIPTION RESULTS
Is LOAN
ITNEATIT
PLIERINTENCANOEITN WEST JAVA
V
TRAMSNISSINN LINES NORMAL ALL LINES
IN SERVICE
SYSTEPWEECE
LINESLIADED
mINim t
VITAIE LEVEL SNERATI
i IECTIN OUT ONE SINiLE LINE owFarcceptable h =havyt = modim KETEISEN AFil TO OUT OF SERVICE I=Iaisdoqnte I = light SYST[E
I X NORMAL very
2 50 NORMAL 03
3 SpoundEARAN X SEN 1 - PEKALONGANOUT mIn 10
4ONLY - X~ SEN W - PEKALONiAN h 091 5 X NORMAL i 105 0 -4SEN I - PEKALONGAN
X nut_ _ I 105
7 X NORMAL a h 032
Xox SEN W - PEKALONGAN OUT I
veryh 070
0 SEMARANG X NORMAL 9 h 105 10 + X SEN
OUT 1 - PEKALONGAN
I h 105
11 100 Mw at X NORMAL _ U 101
12 TJILATJAP X TEOALOUT - PURiOKERTO pound n 105
13 SEMARANG SEN W - PEKALONGAN OUTABHO SINOLE CIRCUIT DETWEENPONLYPUiWOENTO AND CAUNG 1 105
Exhibit B
CENTRAL JAVA TRANSMISSION REQUIREMENTS 1977 - 1989
LOAD FLOW TESTS ALTERNATIVE B
DESCRIPTION RESULTS TEST
PhR TRANSMISSIIN LINES LTS EFE I EAC E LOADED VLMINTERCANGENEST H IVA NORIAL ALL LINES SYSTEM LI1ES
LIAI1TH _ __ _ I NSERVICE
= LO DIE EIATI IO-H_ e d h=h eavy shy OgaIapound I EIIDIRECTION OU ahl edi m KE EIERMLEVEL = aocept =
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3$ x0
Present Worth Discount Rate of
12 15 Case 1 (b)
Scheme A 9498 9322 B 9830 91595
Difference infavor of A 332 273
IfScheme B is developed using ST transmission the resultant investments are shown inExhibit 5 and the present worth of costs are shown
below
$ x 103
Present Worth Discount Rate of
12 15
Case 3
Scheme A 11882 11656 B 12575 12060
The above analysis shows that provided generation isinstalled in the Cilicap area by 1984 Scheme A is less expensive than Scheme B The
economic advantage of Scheme A over B is not significant if the second circuit Semarang Timur - Tegal is delayed to 1980 in Scheme B However it would not be prudent to operate with one circuit from Semarang Timur - Tegal for
eoowhinr sons
(a) Voltage conditions during the emergency loss of any one line section Semarang - Tegal will be very poor resulting in possible loss of load
(b) Stability of the interconnected West Java Central Java system will not be retained for faults on the single circuit Samarang - Tegal transmission while transferring 50 MW from Central Java to West Java
The above reasons dic -two eee__ marag and Tegal This early requirement for the second circuit
enhances the relative economy of Scheme A (See Case 1 (a)
The analysis also shows that the use of DT(SC) instead of ST In
Scheme B results in the least present worth of costs (Compare Case 3 with
Case 1)
Although Case 2 shows an economic advantage for Scheme B it is considered very unlikely that generation will not be developed in the
Cilicap area by 1984 The proximity to a readily available source of fuel shythe Pertamina refinery - and the ideal harbor and siteing conditions in the Cilicap area strongly favor the development of steam generation in that area
60 RECOMMENDATIONS
Considering the economic evaluation outlined in Section 5 and the system requirement for a strong interconnection between the West Java and Central Java systems it is recommended that two circuits be provided from
-Zeai- Samarang in 1977 The adoption of DT(DC) towers results in o
The extension of DT(DC) transmission to Cilicap also represents the least cost solution and is therefore recommended for implementation in 1977
Garung hydro should be incorporated over DT(DC) radial transmission to Magelang
Loads along the Magelang - Garung - Purwokerto route can be supplied at 20 kV over distribution lines from 15020 kV substations at Garung and Purwokerto By 1984 the Garung - Purwokerto link will be closed and new 15020 kV subshystations could be developed to supply increased loads in the area
Economic Analysis
of Alternate Schemes
Case 1 Investment $ x 103
Scheme A Scheme B
- 1977 Transmission -146 mi $55000 $ 8050 -146 mi $42500 $ 6220 - 48 ml $42500 2040
Substations - 20 fdr position 3000 - 12 fdr position $11_ 0_ 0 1 00
$11050 $10060
-1980 Transmission
- 915 mi $11 000 1005
Substations -8 fdr positions 1 200$ 2205
-1989 Transmission
- 48 mi $55000 2640 - 48 m $11 000 528 - 548 mi $1Il000 604
Substations -4 fdr position 600 -4 fdr position 600
$ 3240 $ 1732
Exhibit 3
Economic Analysis
of Alternate Schemes
Case 2
Investment $ x 103
Scheme A Scheme B
-1977 (Same as Case 1) $11050 $10060
-1980 (Same as Case 1) - 2205
-1984 Transmission
-48 -48
mi $55000 mi $11000
2640 528
Substations - 4 fdr position 600 - 2 fdr position 300
-1989 Transmission
-548 mi $11000 604
Substations 2 fdr position 300
-1977
ECONOMIC ANALYSIS of Alternate Schemes
Case 3 Investment $ x 10 3
Scheme A Scheme B
- Transmission -146 mi $55000 8050-146 mi $34200 5000 - 48 mi $34200 1640
-Substations - 20 fdr position 3000 - 12 fdr position 1800
11050 8440 -1980
-Transmission -915 mi $34200 3130
-Substations 8 fdr position 1200
-1989 4330
-Transmission -48 mi $55000 2640-48 mi $34200 1640-548 mi $34200 1870
-Substations - 4 fdr position 600 - 4 fdr position 600
3240 4110
SEOURANG SEMARANG SHARBOR
PEKALONGAN WEST DJATINGALEHshy362 Mi 469 Mi deg 6 Mi 38 Mi z
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SOLO SELEGEND
o150kV proposed by CT MAIN _ _ _ _ _ _ _IIT__TJILATJAP liA underUS AID loan agreement CENTRAL JAVA
am-- 150 kV recommended by CT MAIN TRANSISSION RE UIRENETS 1 shy
for service reliability 150 kV TlANiiSiSUll lST EN _ _ _ _ _ _ _A L T E R N A T E SCNEIE_A
150 kV planned by Federal Republic TLTERATE SCNEI Ali TVAL OPof Gearany CaAS T Muin INTEliAT I =A I UE INO
OWAWVA1TLE COPY of eanyI s
IAUU5ITT nUTNAS WTI =131A4
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All conductors considered 477 ECM-ACSR JO JAKARTA
II E OOSLEGEND - 28 i I t
TJILATJAP 150 kV considered as alternate EXIIT scheme by CT MAIN CETRAL JAVA TRANSMISSION REQUIREMENTS 1977 - 16
150 kiV RANSEISfiS ffiffi 150 kV planned by Federal Republic ALTERNATE SCHEME I of Germany HAS T lAIN INTEIATIINAL INIC S CAEI
UTE1 C40RLITTE 44Ein --SSAMUUUTTS MWlTI CANLINAI 21 48
Load Flow Analyses
Load flow studies were conducted to determine the capabilities of the two alternate transmission system developments outlined in Section 2 The study extended over a 12 year period 1977 - 1989 Summaries of the load flow cases run in the study are shown in Exhibits A B and C Flow and voltage conditions for each case represented in Exhibit A are also attached
Key load flows which influence the development of the alternate transmission schemes described in Section 2 of the report are described below
Alternate A
Test A - 8 1984 load level and 100 MW delivery to West Java no generation at Cilicap and contingency loss of one Pekalongan-Semarang circuit Voltages in the Ketenger system are unacceptably low
Test A - 13 Same as A shy 8 but with one circuit Garung-Purwokerto in-service Voltages and flows throughout the system are adequate
Test A - 12 Same ris A shy 8 but with generation in Cilicap Contingency loss of one Purwokerto - Tegal circuit Voltages and flows throughout the system are adequate
The above tests show that without generation in the Cilicap area a second transmission connection between the Tuntang and Ketenger systems is required on or before 1984
Alternate B
Test B-3 1977 loads and 50 MW delivery to West Java Contingency loss of Pekalongan - Semarang West transmission Voltages in the Central Java system are inadequate Stability of the Interconnected system is marginal due to large angles between Samarang and Jakarta generation
This test defines the requirement for a second circuit
between Tegal and Semarang in the early stages of
development of the Ketenger 150 kV transmission
system
Transmission requirements for 1989 were developed using engineering
Judgement The transmission additions resulted in the same number of circuits
for both alternatives A and B
CENTRAL JAVA
TRAMISUISSION REIJIREMENTS 1877 - 199
ais 1977 1S u 1h6 250 Wlw M 111111I1O SMS 1 0 0 0eTJIULTJW Ume 1M 111W111M) ______ I__MlTIiceIS 50 50 10 INo
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LOAD FLOW TESTS ALTERNATIVE A
TEST DESCRIPTION RESULTS
Is LOAN
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12 TJILATJAP X TEOALOUT - PURiOKERTO pound n 105
13 SEMARANG SEN W - PEKALONGAN OUTABHO SINOLE CIRCUIT DETWEENPONLYPUiWOENTO AND CAUNG 1 105
Exhibit B
CENTRAL JAVA TRANSMISSION REQUIREMENTS 1977 - 1989
LOAD FLOW TESTS ALTERNATIVE B
DESCRIPTION RESULTS TEST
PhR TRANSMISSIIN LINES LTS EFE I EAC E LOADED VLMINTERCANGENEST H IVA NORIAL ALL LINES SYSTEM LI1ES
LIAI1TH _ __ _ I NSERVICE
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Exhibit C
105
105
107 SEMARANG 105 SEARAN
PEKALONGAN WEST DJATINGALEH HARBOR
212-p- 1e 10 6--- 0-180
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LOAD FLOW TEST A-ZSYSTEM OPERATION NORMAL 1977 LOAD LEVEL - ALT A
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-- SYSTEM OPERATION LINE CONTINGENCY LOAD FLOW TEST l-1O - 1964 LOAD LEVEL - ALT$
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i
Scheme B results in the least present worth of costs (Compare Case 3 with
Case 1)
Although Case 2 shows an economic advantage for Scheme B it is considered very unlikely that generation will not be developed in the
Cilicap area by 1984 The proximity to a readily available source of fuel shythe Pertamina refinery - and the ideal harbor and siteing conditions in the Cilicap area strongly favor the development of steam generation in that area
60 RECOMMENDATIONS
Considering the economic evaluation outlined in Section 5 and the system requirement for a strong interconnection between the West Java and Central Java systems it is recommended that two circuits be provided from
-Zeai- Samarang in 1977 The adoption of DT(DC) towers results in o
The extension of DT(DC) transmission to Cilicap also represents the least cost solution and is therefore recommended for implementation in 1977
Garung hydro should be incorporated over DT(DC) radial transmission to Magelang
Loads along the Magelang - Garung - Purwokerto route can be supplied at 20 kV over distribution lines from 15020 kV substations at Garung and Purwokerto By 1984 the Garung - Purwokerto link will be closed and new 15020 kV subshystations could be developed to supply increased loads in the area
Economic Analysis
of Alternate Schemes
Case 1 Investment $ x 103
Scheme A Scheme B
- 1977 Transmission -146 mi $55000 $ 8050 -146 mi $42500 $ 6220 - 48 ml $42500 2040
Substations - 20 fdr position 3000 - 12 fdr position $11_ 0_ 0 1 00
$11050 $10060
-1980 Transmission
- 915 mi $11 000 1005
Substations -8 fdr positions 1 200$ 2205
-1989 Transmission
- 48 mi $55000 2640 - 48 m $11 000 528 - 548 mi $1Il000 604
Substations -4 fdr position 600 -4 fdr position 600
$ 3240 $ 1732
Exhibit 3
Economic Analysis
of Alternate Schemes
Case 2
Investment $ x 103
Scheme A Scheme B
-1977 (Same as Case 1) $11050 $10060
-1980 (Same as Case 1) - 2205
-1984 Transmission
-48 -48
mi $55000 mi $11000
2640 528
Substations - 4 fdr position 600 - 2 fdr position 300
-1989 Transmission
-548 mi $11000 604
Substations 2 fdr position 300
-1977
ECONOMIC ANALYSIS of Alternate Schemes
Case 3 Investment $ x 10 3
Scheme A Scheme B
- Transmission -146 mi $55000 8050-146 mi $34200 5000 - 48 mi $34200 1640
-Substations - 20 fdr position 3000 - 12 fdr position 1800
11050 8440 -1980
-Transmission -915 mi $34200 3130
-Substations 8 fdr position 1200
-1989 4330
-Transmission -48 mi $55000 2640-48 mi $34200 1640-548 mi $34200 1870
-Substations - 4 fdr position 600 - 4 fdr position 600
3240 4110
SEOURANG SEMARANG SHARBOR
PEKALONGAN WEST DJATINGALEHshy362 Mi 469 Mi deg 6 Mi 38 Mi z
TEII SEMARANG-
T TIUR
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SOLO SELEGEND
o150kV proposed by CT MAIN _ _ _ _ _ _ _IIT__TJILATJAP liA underUS AID loan agreement CENTRAL JAVA
am-- 150 kV recommended by CT MAIN TRANSISSION RE UIRENETS 1 shy
for service reliability 150 kV TlANiiSiSUll lST EN _ _ _ _ _ _ _A L T E R N A T E SCNEIE_A
150 kV planned by Federal Republic TLTERATE SCNEI Ali TVAL OPof Gearany CaAS T Muin INTEliAT I =A I UE INO
OWAWVA1TLE COPY of eanyI s
IAUU5ITT nUTNAS WTI =131A4
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II NOTE
All conductors considered 477 ECM-ACSR JO JAKARTA
II E OOSLEGEND - 28 i I t
TJILATJAP 150 kV considered as alternate EXIIT scheme by CT MAIN CETRAL JAVA TRANSMISSION REQUIREMENTS 1977 - 16
150 kiV RANSEISfiS ffiffi 150 kV planned by Federal Republic ALTERNATE SCHEME I of Germany HAS T lAIN INTEIATIINAL INIC S CAEI
UTE1 C40RLITTE 44Ein --SSAMUUUTTS MWlTI CANLINAI 21 48
Load Flow Analyses
Load flow studies were conducted to determine the capabilities of the two alternate transmission system developments outlined in Section 2 The study extended over a 12 year period 1977 - 1989 Summaries of the load flow cases run in the study are shown in Exhibits A B and C Flow and voltage conditions for each case represented in Exhibit A are also attached
Key load flows which influence the development of the alternate transmission schemes described in Section 2 of the report are described below
Alternate A
Test A - 8 1984 load level and 100 MW delivery to West Java no generation at Cilicap and contingency loss of one Pekalongan-Semarang circuit Voltages in the Ketenger system are unacceptably low
Test A - 13 Same as A shy 8 but with one circuit Garung-Purwokerto in-service Voltages and flows throughout the system are adequate
Test A - 12 Same ris A shy 8 but with generation in Cilicap Contingency loss of one Purwokerto - Tegal circuit Voltages and flows throughout the system are adequate
The above tests show that without generation in the Cilicap area a second transmission connection between the Tuntang and Ketenger systems is required on or before 1984
Alternate B
Test B-3 1977 loads and 50 MW delivery to West Java Contingency loss of Pekalongan - Semarang West transmission Voltages in the Central Java system are inadequate Stability of the Interconnected system is marginal due to large angles between Samarang and Jakarta generation
This test defines the requirement for a second circuit
between Tegal and Semarang in the early stages of
development of the Ketenger 150 kV transmission
system
Transmission requirements for 1989 were developed using engineering
Judgement The transmission additions resulted in the same number of circuits
for both alternatives A and B
CENTRAL JAVA
TRAMISUISSION REIJIREMENTS 1877 - 199
ais 1977 1S u 1h6 250 Wlw M 111111I1O SMS 1 0 0 0eTJIULTJW Ume 1M 111W111M) ______ I__MlTIiceIS 50 50 10 INo
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COiTRAL JAVA TRANSMISSION REQUIREMENTS 1977 - 198
LOAD FLOW TESTS ALTERNATIVE A
TEST DESCRIPTION RESULTS
Is LOAN
ITNEATIT
PLIERINTENCANOEITN WEST JAVA
V
TRAMSNISSINN LINES NORMAL ALL LINES
IN SERVICE
SYSTEPWEECE
LINESLIADED
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I X NORMAL very
2 50 NORMAL 03
3 SpoundEARAN X SEN 1 - PEKALONGANOUT mIn 10
4ONLY - X~ SEN W - PEKALONiAN h 091 5 X NORMAL i 105 0 -4SEN I - PEKALONGAN
X nut_ _ I 105
7 X NORMAL a h 032
Xox SEN W - PEKALONGAN OUT I
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OUT 1 - PEKALONGAN
I h 105
11 100 Mw at X NORMAL _ U 101
12 TJILATJAP X TEOALOUT - PURiOKERTO pound n 105
13 SEMARANG SEN W - PEKALONGAN OUTABHO SINOLE CIRCUIT DETWEENPONLYPUiWOENTO AND CAUNG 1 105
Exhibit B
CENTRAL JAVA TRANSMISSION REQUIREMENTS 1977 - 1989
LOAD FLOW TESTS ALTERNATIVE B
DESCRIPTION RESULTS TEST
PhR TRANSMISSIIN LINES LTS EFE I EAC E LOADED VLMINTERCANGENEST H IVA NORIAL ALL LINES SYSTEM LI1ES
LIAI1TH _ __ _ I NSERVICE
= LO DIE EIATI IO-H_ e d h=h eavy shy OgaIapound I EIIDIRECTION OU ahl edi m KE EIERMLEVEL = aocept =
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h 0 ADD 2nd CIRCUIT TEALI
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9 KALO GAN - T GAL I I h 0 02
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19 4 OUTX72 000hIO I 12 po SEALNATEGAL 095I NORMAL - 9OAD2nd CIRCUITAAN II
OUTSEN - DEATINGALEH 10veryNORMALXSEMARA G 104413 9h OUT very
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vahry - PRWOKERTO I h0 71
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ADDED 2nd CIRCUIT SEN11 2
Exhibit C
105
105
107 SEMARANG 105 SEARAN
PEKALONGAN WEST DJATINGALEH HARBOR
212-p- 1e 10 6--- 0-180
TEL IPA SEMARANGshy|41 1 61 TIMUR
MAGELANG
108 0 i PURWOKERTO I
1084
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0 bullSOLOLS PURWOERTO 8 1
i TJILATJAP POWER TO WEST JAVA 0OETALJV POWER FROM WEST JAVA 500 M TRANSMISSION REQUIREMENTS 1177- a13W-
pSYSTEM OPERATION NO4AL LOAD FL~rlTESTTA
CHAS 1971 LOAD LEVEL - ALT
T MAIN INTElATIUALIC Ai|
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30
---
105105105i SEMARANG
104 SEMARANG 105AR HARBORWEST DJATINGALEH 0shy111--104073 7 PEKALONGAN -834
9 9 10513 123 145 - - SEMARANG-TEBAL TII4UR
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TJILATJAP POWER TO WEST JAVA 500 MWA__T_7______ CENTRAL JAVA
POWER FROM WEST JAVA 0 TRANSMISSION REQUIRENENTS 197 19i
LOAD FLOW TEST A-ZSYSTEM OPERATION NORMAL 1977 LOAD LEVEL - ALT A
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POWER FROM WEST JAVA 0 TRANSMISSION REQUIREMENTS 1977 - 19S LOAD FLOW TELTSYSTEM OPERATION LINE CONTINGENCY 1984 LOAD LEVEL - ALTi4M- 01DIwk e ek r 7 _ofp
S- jCHAS T MAIN INTERNATIONALo INC
UOSTON CNARLOTTE CLIT -----_ _ __ _ ___TTTN CAROLINA M0
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i 404
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CENTRAL JAVA TRANSMISSION REQUIRENENTS 1977 - 1
LOAD FLOU TEST A-5 1984 LOAD LEVEL -A LT A
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-ASSACNUSETI- _JIUTN iANILIA M2NI 44 -
104 105 SEMARAN
1055 SEMARANG 104 SEMARANG
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TEGAL
165 189 1095
NONNILT I GAR
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POWER TO WEST JAVA 0 EMWIITTJILATJAP POETOWSJAA0_______________ POWERAFOWECENTRAL JAVA
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TRANSMISSION REQUIREMENTS 1977 - 165 SYSTEM OPERATION LINE CONTINGENCY LOAD FLOW TEST A-111
1984 LOAD LEVEL - ALT I
INTEMATIONAL INC OW 12STm CHALITE IN
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-- 1547 -a-1782 -1953 4-2201
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7 21984 LoAD LEVEL - ALT A CHAS T MAIN INTEMATImUAL ila
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POWER FROM WEST JAVA 0 TRANSMISSION REQUIREMENTS 177 - IOo
SYSTEM OPERATION LINE CONTINGENCY LOAD FLOW TEST A-O 1984 LOAD LEVEL - ALT B
CHAS T MAIN INIZMATINAL INKC S E BOSTON CNALOTTE CLIIT -
-ISCVETI IT CAMINA M31 4I
104 105
104 SEMARANG 104 SEMARANG
PEKALONGAN WEST DJATINGALEH -= HARBOR - - 1476- 1276 1070 --1026
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TRANSMISSION REQUIRENENTS 177 - 1
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LINE CONTINGENCY LOAD FLOW TEST 3-11 1984 LOAD LEVEL - ALT I
C E CHAS T NAMt INTEMATIUALIN K VON[
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i
Economic Analysis
of Alternate Schemes
Case 1 Investment $ x 103
Scheme A Scheme B
- 1977 Transmission -146 mi $55000 $ 8050 -146 mi $42500 $ 6220 - 48 ml $42500 2040
Substations - 20 fdr position 3000 - 12 fdr position $11_ 0_ 0 1 00
$11050 $10060
-1980 Transmission
- 915 mi $11 000 1005
Substations -8 fdr positions 1 200$ 2205
-1989 Transmission
- 48 mi $55000 2640 - 48 m $11 000 528 - 548 mi $1Il000 604
Substations -4 fdr position 600 -4 fdr position 600
$ 3240 $ 1732
Exhibit 3
Economic Analysis
of Alternate Schemes
Case 2
Investment $ x 103
Scheme A Scheme B
-1977 (Same as Case 1) $11050 $10060
-1980 (Same as Case 1) - 2205
-1984 Transmission
-48 -48
mi $55000 mi $11000
2640 528
Substations - 4 fdr position 600 - 2 fdr position 300
-1989 Transmission
-548 mi $11000 604
Substations 2 fdr position 300
-1977
ECONOMIC ANALYSIS of Alternate Schemes
Case 3 Investment $ x 10 3
Scheme A Scheme B
- Transmission -146 mi $55000 8050-146 mi $34200 5000 - 48 mi $34200 1640
-Substations - 20 fdr position 3000 - 12 fdr position 1800
11050 8440 -1980
-Transmission -915 mi $34200 3130
-Substations 8 fdr position 1200
-1989 4330
-Transmission -48 mi $55000 2640-48 mi $34200 1640-548 mi $34200 1870
-Substations - 4 fdr position 600 - 4 fdr position 600
3240 4110
SEOURANG SEMARANG SHARBOR
PEKALONGAN WEST DJATINGALEHshy362 Mi 469 Mi deg 6 Mi 38 Mi z
TEII SEMARANG-
T TIUR
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iI 477 NCM-AC3R
SOLO SELEGEND
o150kV proposed by CT MAIN _ _ _ _ _ _ _IIT__TJILATJAP liA underUS AID loan agreement CENTRAL JAVA
am-- 150 kV recommended by CT MAIN TRANSISSION RE UIRENETS 1 shy
for service reliability 150 kV TlANiiSiSUll lST EN _ _ _ _ _ _ _A L T E R N A T E SCNEIE_A
150 kV planned by Federal Republic TLTERATE SCNEI Ali TVAL OPof Gearany CaAS T Muin INTEliAT I =A I UE INO
OWAWVA1TLE COPY of eanyI s
IAUU5ITT nUTNAS WTI =131A4
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All conductors considered 477 ECM-ACSR JO JAKARTA
II E OOSLEGEND - 28 i I t
TJILATJAP 150 kV considered as alternate EXIIT scheme by CT MAIN CETRAL JAVA TRANSMISSION REQUIREMENTS 1977 - 16
150 kiV RANSEISfiS ffiffi 150 kV planned by Federal Republic ALTERNATE SCHEME I of Germany HAS T lAIN INTEIATIINAL INIC S CAEI
UTE1 C40RLITTE 44Ein --SSAMUUUTTS MWlTI CANLINAI 21 48
Load Flow Analyses
Load flow studies were conducted to determine the capabilities of the two alternate transmission system developments outlined in Section 2 The study extended over a 12 year period 1977 - 1989 Summaries of the load flow cases run in the study are shown in Exhibits A B and C Flow and voltage conditions for each case represented in Exhibit A are also attached
Key load flows which influence the development of the alternate transmission schemes described in Section 2 of the report are described below
Alternate A
Test A - 8 1984 load level and 100 MW delivery to West Java no generation at Cilicap and contingency loss of one Pekalongan-Semarang circuit Voltages in the Ketenger system are unacceptably low
Test A - 13 Same as A shy 8 but with one circuit Garung-Purwokerto in-service Voltages and flows throughout the system are adequate
Test A - 12 Same ris A shy 8 but with generation in Cilicap Contingency loss of one Purwokerto - Tegal circuit Voltages and flows throughout the system are adequate
The above tests show that without generation in the Cilicap area a second transmission connection between the Tuntang and Ketenger systems is required on or before 1984
Alternate B
Test B-3 1977 loads and 50 MW delivery to West Java Contingency loss of Pekalongan - Semarang West transmission Voltages in the Central Java system are inadequate Stability of the Interconnected system is marginal due to large angles between Samarang and Jakarta generation
This test defines the requirement for a second circuit
between Tegal and Semarang in the early stages of
development of the Ketenger 150 kV transmission
system
Transmission requirements for 1989 were developed using engineering
Judgement The transmission additions resulted in the same number of circuits
for both alternatives A and B
CENTRAL JAVA
TRAMISUISSION REIJIREMENTS 1877 - 199
ais 1977 1S u 1h6 250 Wlw M 111111I1O SMS 1 0 0 0eTJIULTJW Ume 1M 111W111M) ______ I__MlTIiceIS 50 50 10 INo
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113161
COiTRAL JAVA TRANSMISSION REQUIREMENTS 1977 - 198
LOAD FLOW TESTS ALTERNATIVE A
TEST DESCRIPTION RESULTS
Is LOAN
ITNEATIT
PLIERINTENCANOEITN WEST JAVA
V
TRAMSNISSINN LINES NORMAL ALL LINES
IN SERVICE
SYSTEPWEECE
LINESLIADED
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i IECTIN OUT ONE SINiLE LINE owFarcceptable h =havyt = modim KETEISEN AFil TO OUT OF SERVICE I=Iaisdoqnte I = light SYST[E
I X NORMAL very
2 50 NORMAL 03
3 SpoundEARAN X SEN 1 - PEKALONGANOUT mIn 10
4ONLY - X~ SEN W - PEKALONiAN h 091 5 X NORMAL i 105 0 -4SEN I - PEKALONGAN
X nut_ _ I 105
7 X NORMAL a h 032
Xox SEN W - PEKALONGAN OUT I
veryh 070
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OUT 1 - PEKALONGAN
I h 105
11 100 Mw at X NORMAL _ U 101
12 TJILATJAP X TEOALOUT - PURiOKERTO pound n 105
13 SEMARANG SEN W - PEKALONGAN OUTABHO SINOLE CIRCUIT DETWEENPONLYPUiWOENTO AND CAUNG 1 105
Exhibit B
CENTRAL JAVA TRANSMISSION REQUIREMENTS 1977 - 1989
LOAD FLOW TESTS ALTERNATIVE B
DESCRIPTION RESULTS TEST
PhR TRANSMISSIIN LINES LTS EFE I EAC E LOADED VLMINTERCANGENEST H IVA NORIAL ALL LINES SYSTEM LI1ES
LIAI1TH _ __ _ I NSERVICE
= LO DIE EIATI IO-H_ e d h=h eavy shy OgaIapound I EIIDIRECTION OU ahl edi m KE EIERMLEVEL = aocept =
OUT SONMIL LIE = I inadequatl I light SSTEmOF SERVICEN TIOUTIIIRW
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h 0 ADD 2nd CIRCUIT TEALI
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9 KALO GAN - T GAL I I h 0 02
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19 4 OUTX72 000hIO I 12 po SEALNATEGAL 095I NORMAL - 9OAD2nd CIRCUITAAN II
OUTSEN - DEATINGALEH 10veryNORMALXSEMARA G 104413 9h OUT very
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vahry - PRWOKERTO I h0 71
SrTEOALX OUT OUTTJILAT AP10 PUR OKERTO h 095 E AL - - TEGA 0
ADDED 2nd CIRCUIT SEN11 2
Exhibit C
105
105
107 SEMARANG 105 SEARAN
PEKALONGAN WEST DJATINGALEH HARBOR
212-p- 1e 10 6--- 0-180
TEL IPA SEMARANGshy|41 1 61 TIMUR
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0 bullSOLOLS PURWOERTO 8 1
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T MAIN INTElATIUALIC Ai|
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---
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9 9 10513 123 145 - - SEMARANG-TEBAL TII4UR
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POWER FROM WEST JAVA 0 TRANSMISSION REQUIRENENTS 197 19i
LOAD FLOW TEST A-ZSYSTEM OPERATION NORMAL 1977 LOAD LEVEL - ALT A
-bull~ T MAIN INTEEATIBUL ICHAS -4bullUSlTo CUMLITI CLIE NTis
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101 SEMARANG 1 045 SEMARANG PEKALONGAN WEST DJATINGALEH - m HARBOR
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TEGAL i I m-TIMUR SEMARANGshy
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Onedeg- -Ji ekoys- fA j w 1977 LOAD LEVEL - ALT A
4 AAVfSk CHAS T MAIN INTENATIGUUAL INCf
-U TTU N11 IlA 04L- CU M 1
105 103
SEMARANG 1036 SEMARAG
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TEGA rL SEMARANGshy75 304 3880 S TIMUR
co
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Economic Analysis
of Alternate Schemes
Case 2
Investment $ x 103
Scheme A Scheme B
-1977 (Same as Case 1) $11050 $10060
-1980 (Same as Case 1) - 2205
-1984 Transmission
-48 -48
mi $55000 mi $11000
2640 528
Substations - 4 fdr position 600 - 2 fdr position 300
-1989 Transmission
-548 mi $11000 604
Substations 2 fdr position 300
-1977
ECONOMIC ANALYSIS of Alternate Schemes
Case 3 Investment $ x 10 3
Scheme A Scheme B
- Transmission -146 mi $55000 8050-146 mi $34200 5000 - 48 mi $34200 1640
-Substations - 20 fdr position 3000 - 12 fdr position 1800
11050 8440 -1980
-Transmission -915 mi $34200 3130
-Substations 8 fdr position 1200
-1989 4330
-Transmission -48 mi $55000 2640-48 mi $34200 1640-548 mi $34200 1870
-Substations - 4 fdr position 600 - 4 fdr position 600
3240 4110
SEOURANG SEMARANG SHARBOR
PEKALONGAN WEST DJATINGALEHshy362 Mi 469 Mi deg 6 Mi 38 Mi z
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SOLO SELEGEND
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am-- 150 kV recommended by CT MAIN TRANSISSION RE UIRENETS 1 shy
for service reliability 150 kV TlANiiSiSUll lST EN _ _ _ _ _ _ _A L T E R N A T E SCNEIE_A
150 kV planned by Federal Republic TLTERATE SCNEI Ali TVAL OPof Gearany CaAS T Muin INTEliAT I =A I UE INO
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150 kiV RANSEISfiS ffiffi 150 kV planned by Federal Republic ALTERNATE SCHEME I of Germany HAS T lAIN INTEIATIINAL INIC S CAEI
UTE1 C40RLITTE 44Ein --SSAMUUUTTS MWlTI CANLINAI 21 48
Load Flow Analyses
Load flow studies were conducted to determine the capabilities of the two alternate transmission system developments outlined in Section 2 The study extended over a 12 year period 1977 - 1989 Summaries of the load flow cases run in the study are shown in Exhibits A B and C Flow and voltage conditions for each case represented in Exhibit A are also attached
Key load flows which influence the development of the alternate transmission schemes described in Section 2 of the report are described below
Alternate A
Test A - 8 1984 load level and 100 MW delivery to West Java no generation at Cilicap and contingency loss of one Pekalongan-Semarang circuit Voltages in the Ketenger system are unacceptably low
Test A - 13 Same as A shy 8 but with one circuit Garung-Purwokerto in-service Voltages and flows throughout the system are adequate
Test A - 12 Same ris A shy 8 but with generation in Cilicap Contingency loss of one Purwokerto - Tegal circuit Voltages and flows throughout the system are adequate
The above tests show that without generation in the Cilicap area a second transmission connection between the Tuntang and Ketenger systems is required on or before 1984
Alternate B
Test B-3 1977 loads and 50 MW delivery to West Java Contingency loss of Pekalongan - Semarang West transmission Voltages in the Central Java system are inadequate Stability of the Interconnected system is marginal due to large angles between Samarang and Jakarta generation
This test defines the requirement for a second circuit
between Tegal and Semarang in the early stages of
development of the Ketenger 150 kV transmission
system
Transmission requirements for 1989 were developed using engineering
Judgement The transmission additions resulted in the same number of circuits
for both alternatives A and B
CENTRAL JAVA
TRAMISUISSION REIJIREMENTS 1877 - 199
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LOAD FLOW TESTS ALTERNATIVE A
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Exhibit B
CENTRAL JAVA TRANSMISSION REQUIREMENTS 1977 - 1989
LOAD FLOW TESTS ALTERNATIVE B
DESCRIPTION RESULTS TEST
PhR TRANSMISSIIN LINES LTS EFE I EAC E LOADED VLMINTERCANGENEST H IVA NORIAL ALL LINES SYSTEM LI1ES
LIAI1TH _ __ _ I NSERVICE
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Exhibit C
105
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ECONOMIC ANALYSIS of Alternate Schemes
Case 3 Investment $ x 10 3
Scheme A Scheme B
- Transmission -146 mi $55000 8050-146 mi $34200 5000 - 48 mi $34200 1640
-Substations - 20 fdr position 3000 - 12 fdr position 1800
11050 8440 -1980
-Transmission -915 mi $34200 3130
-Substations 8 fdr position 1200
-1989 4330
-Transmission -48 mi $55000 2640-48 mi $34200 1640-548 mi $34200 1870
-Substations - 4 fdr position 600 - 4 fdr position 600
3240 4110
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am-- 150 kV recommended by CT MAIN TRANSISSION RE UIRENETS 1 shy
for service reliability 150 kV TlANiiSiSUll lST EN _ _ _ _ _ _ _A L T E R N A T E SCNEIE_A
150 kV planned by Federal Republic TLTERATE SCNEI Ali TVAL OPof Gearany CaAS T Muin INTEliAT I =A I UE INO
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150 kiV RANSEISfiS ffiffi 150 kV planned by Federal Republic ALTERNATE SCHEME I of Germany HAS T lAIN INTEIATIINAL INIC S CAEI
UTE1 C40RLITTE 44Ein --SSAMUUUTTS MWlTI CANLINAI 21 48
Load Flow Analyses
Load flow studies were conducted to determine the capabilities of the two alternate transmission system developments outlined in Section 2 The study extended over a 12 year period 1977 - 1989 Summaries of the load flow cases run in the study are shown in Exhibits A B and C Flow and voltage conditions for each case represented in Exhibit A are also attached
Key load flows which influence the development of the alternate transmission schemes described in Section 2 of the report are described below
Alternate A
Test A - 8 1984 load level and 100 MW delivery to West Java no generation at Cilicap and contingency loss of one Pekalongan-Semarang circuit Voltages in the Ketenger system are unacceptably low
Test A - 13 Same as A shy 8 but with one circuit Garung-Purwokerto in-service Voltages and flows throughout the system are adequate
Test A - 12 Same ris A shy 8 but with generation in Cilicap Contingency loss of one Purwokerto - Tegal circuit Voltages and flows throughout the system are adequate
The above tests show that without generation in the Cilicap area a second transmission connection between the Tuntang and Ketenger systems is required on or before 1984
Alternate B
Test B-3 1977 loads and 50 MW delivery to West Java Contingency loss of Pekalongan - Semarang West transmission Voltages in the Central Java system are inadequate Stability of the Interconnected system is marginal due to large angles between Samarang and Jakarta generation
This test defines the requirement for a second circuit
between Tegal and Semarang in the early stages of
development of the Ketenger 150 kV transmission
system
Transmission requirements for 1989 were developed using engineering
Judgement The transmission additions resulted in the same number of circuits
for both alternatives A and B
CENTRAL JAVA
TRAMISUISSION REIJIREMENTS 1877 - 199
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LOAD FLOW TESTS ALTERNATIVE A
TEST DESCRIPTION RESULTS
Is LOAN
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Exhibit B
CENTRAL JAVA TRANSMISSION REQUIREMENTS 1977 - 1989
LOAD FLOW TESTS ALTERNATIVE B
DESCRIPTION RESULTS TEST
PhR TRANSMISSIIN LINES LTS EFE I EAC E LOADED VLMINTERCANGENEST H IVA NORIAL ALL LINES SYSTEM LI1ES
LIAI1TH _ __ _ I NSERVICE
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Exhibit C
105
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UTE1 C40RLITTE 44Ein --SSAMUUUTTS MWlTI CANLINAI 21 48
Load Flow Analyses
Load flow studies were conducted to determine the capabilities of the two alternate transmission system developments outlined in Section 2 The study extended over a 12 year period 1977 - 1989 Summaries of the load flow cases run in the study are shown in Exhibits A B and C Flow and voltage conditions for each case represented in Exhibit A are also attached
Key load flows which influence the development of the alternate transmission schemes described in Section 2 of the report are described below
Alternate A
Test A - 8 1984 load level and 100 MW delivery to West Java no generation at Cilicap and contingency loss of one Pekalongan-Semarang circuit Voltages in the Ketenger system are unacceptably low
Test A - 13 Same as A shy 8 but with one circuit Garung-Purwokerto in-service Voltages and flows throughout the system are adequate
Test A - 12 Same ris A shy 8 but with generation in Cilicap Contingency loss of one Purwokerto - Tegal circuit Voltages and flows throughout the system are adequate
The above tests show that without generation in the Cilicap area a second transmission connection between the Tuntang and Ketenger systems is required on or before 1984
Alternate B
Test B-3 1977 loads and 50 MW delivery to West Java Contingency loss of Pekalongan - Semarang West transmission Voltages in the Central Java system are inadequate Stability of the Interconnected system is marginal due to large angles between Samarang and Jakarta generation
This test defines the requirement for a second circuit
between Tegal and Semarang in the early stages of
development of the Ketenger 150 kV transmission
system
Transmission requirements for 1989 were developed using engineering
Judgement The transmission additions resulted in the same number of circuits
for both alternatives A and B
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LOAD FLOW TESTS ALTERNATIVE A
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Exhibit B
CENTRAL JAVA TRANSMISSION REQUIREMENTS 1977 - 1989
LOAD FLOW TESTS ALTERNATIVE B
DESCRIPTION RESULTS TEST
PhR TRANSMISSIIN LINES LTS EFE I EAC E LOADED VLMINTERCANGENEST H IVA NORIAL ALL LINES SYSTEM LI1ES
LIAI1TH _ __ _ I NSERVICE
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Exhibit C
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150 kiV RANSEISfiS ffiffi 150 kV planned by Federal Republic ALTERNATE SCHEME I of Germany HAS T lAIN INTEIATIINAL INIC S CAEI
UTE1 C40RLITTE 44Ein --SSAMUUUTTS MWlTI CANLINAI 21 48
Load Flow Analyses
Load flow studies were conducted to determine the capabilities of the two alternate transmission system developments outlined in Section 2 The study extended over a 12 year period 1977 - 1989 Summaries of the load flow cases run in the study are shown in Exhibits A B and C Flow and voltage conditions for each case represented in Exhibit A are also attached
Key load flows which influence the development of the alternate transmission schemes described in Section 2 of the report are described below
Alternate A
Test A - 8 1984 load level and 100 MW delivery to West Java no generation at Cilicap and contingency loss of one Pekalongan-Semarang circuit Voltages in the Ketenger system are unacceptably low
Test A - 13 Same as A shy 8 but with one circuit Garung-Purwokerto in-service Voltages and flows throughout the system are adequate
Test A - 12 Same ris A shy 8 but with generation in Cilicap Contingency loss of one Purwokerto - Tegal circuit Voltages and flows throughout the system are adequate
The above tests show that without generation in the Cilicap area a second transmission connection between the Tuntang and Ketenger systems is required on or before 1984
Alternate B
Test B-3 1977 loads and 50 MW delivery to West Java Contingency loss of Pekalongan - Semarang West transmission Voltages in the Central Java system are inadequate Stability of the Interconnected system is marginal due to large angles between Samarang and Jakarta generation
This test defines the requirement for a second circuit
between Tegal and Semarang in the early stages of
development of the Ketenger 150 kV transmission
system
Transmission requirements for 1989 were developed using engineering
Judgement The transmission additions resulted in the same number of circuits
for both alternatives A and B
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Exhibit B
CENTRAL JAVA TRANSMISSION REQUIREMENTS 1977 - 1989
LOAD FLOW TESTS ALTERNATIVE B
DESCRIPTION RESULTS TEST
PhR TRANSMISSIIN LINES LTS EFE I EAC E LOADED VLMINTERCANGENEST H IVA NORIAL ALL LINES SYSTEM LI1ES
LIAI1TH _ __ _ I NSERVICE
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Exhibit C
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i
Load Flow Analyses
Load flow studies were conducted to determine the capabilities of the two alternate transmission system developments outlined in Section 2 The study extended over a 12 year period 1977 - 1989 Summaries of the load flow cases run in the study are shown in Exhibits A B and C Flow and voltage conditions for each case represented in Exhibit A are also attached
Key load flows which influence the development of the alternate transmission schemes described in Section 2 of the report are described below
Alternate A
Test A - 8 1984 load level and 100 MW delivery to West Java no generation at Cilicap and contingency loss of one Pekalongan-Semarang circuit Voltages in the Ketenger system are unacceptably low
Test A - 13 Same as A shy 8 but with one circuit Garung-Purwokerto in-service Voltages and flows throughout the system are adequate
Test A - 12 Same ris A shy 8 but with generation in Cilicap Contingency loss of one Purwokerto - Tegal circuit Voltages and flows throughout the system are adequate
The above tests show that without generation in the Cilicap area a second transmission connection between the Tuntang and Ketenger systems is required on or before 1984
Alternate B
Test B-3 1977 loads and 50 MW delivery to West Java Contingency loss of Pekalongan - Semarang West transmission Voltages in the Central Java system are inadequate Stability of the Interconnected system is marginal due to large angles between Samarang and Jakarta generation
This test defines the requirement for a second circuit
between Tegal and Semarang in the early stages of
development of the Ketenger 150 kV transmission
system
Transmission requirements for 1989 were developed using engineering
Judgement The transmission additions resulted in the same number of circuits
for both alternatives A and B
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Exhibit B
CENTRAL JAVA TRANSMISSION REQUIREMENTS 1977 - 1989
LOAD FLOW TESTS ALTERNATIVE B
DESCRIPTION RESULTS TEST
PhR TRANSMISSIIN LINES LTS EFE I EAC E LOADED VLMINTERCANGENEST H IVA NORIAL ALL LINES SYSTEM LI1ES
LIAI1TH _ __ _ I NSERVICE
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Exhibit C
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1984 LOAD LEVEL - ALT I
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CHAS T MAIN 01L CLINT
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7 21984 LoAD LEVEL - ALT A CHAS T MAIN INTEMATImUAL ila
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1984 LOAD LEVEL - ALT I
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SYSTEM OPERATION LINE CONTINGENCY LOAD FLOW TEST A-13 1984 LOAD LEVEL - ALTJA
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l -lt i 1977 LOAD LEVEL - ALT I H Cl n--r k i k CHAS T MAIN INTERNATIAL INC
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MSAHSTTS IRNCOLA 2881
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LOAD FLOW TEST 8-4 1984 LOAD LEVEL - ALT 3
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SYSTEM OPERATION LINE CONTINGENCY LOAD FLOW TEST 3-71984 LOAD LEVEL - ALT I
CHAS T MAIN INTERNATIONALINC BOSTON CHARLOTTE CLIENT IN
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-- SYSTEM OPERATION LINE CONTINGENCY LOAD FLOW TEST l-1O - 1964 LOAD LEVEL - ALT$
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LOAD LEVEL INTERNATIIAL
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--- 5-760_ 405 6 055 1 - 123 220e 297---- 417-L- 1045 ---m ---i- i iSEMARANG
INS TIMUR
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w SOLOMoo n t JOGJAKATAi m CENTRAL JAVA LOAD 252 MW 81T
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S T MAIN INTENATIAL INCIC CNARLDTTE LETASSTMN
+ IA CII TO CAIMIL 77 - ]IISIETTS _emil
(N 105
SEMARANG104 HARBORSEMARANG 104
WEST DJATINGALEHPEKALONGAN 0m-- 409
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m 1SEMARANG TIMUR
IUR T I
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i 1 302 BOJOLALI
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EXHIBIT 105 CENTRAL JAVA LOAD 252 MW
CENTRAL JAVATJILATJAP POWER TO WEST JAVA 0 TRANSMISSION REQUIREMENTS 1977 - 19POWER FROM WEST JAVA 100 MW
OAD FLOW TEST 1-14SYSTEM OPERATION LINE CONTINGENCY 194 LOAD LEVEL - ALT a CHAS T MAIN INTRNATIlNALINCit
BOSTON CHARLOTTE CLIENT IN
IA HTS NIN 2 4
LDJELOK
105 103 SEMARANG
098 SEMARANG 1036 HARBOR
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45 85 7 104 TEIK SEMARANG
r TIMJR
1103
GARUNG i _ d--pow mm1SALATIGA v ---- 22 43
T--LTA POWER TO 10 WC L
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10 CETA JAA OA25 MWGLN
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POWER FROM WEST JAVA 0 TRANSMISSION REQUIREMENTS 1977 - If
__ - 1984 OPERATION NORMAL NSYSTEMLOAD FLOW TEST 1-1LIO LEVEL -ALT I i iCHAS T MAIN INEA IONINC
- MASSACHUSETTS BOSTON
CNARLOTTET _
IEN 2-O ff 1 494 -
UI 4
PEKALO -
0 996 SEMARANG 102 bull WEST DJATINGALEH
17-13701110 -1894 9 6 1 0 1
i
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TIMUR
m
m
10 SEMARANG HARBOR A
1 0 4 SEMARANGshy
m T DJELOK
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ENTR5AL JAVA LOAD 252 MW SOLOS
TJIATAP POWER TOMWEST JAVA 0O CENTRAL JAVA
POE0RMWS AA -SYSTEM OPERATION LINE CONTINGENCY
TRANSMISSION RERUIRENENTS 1977 LOAD FLOWTESVUT8
1984 LOAD LEVEL --ALT I
SB
CAS 1 VAIN INTEEOOATIS 0h S9 CNARLPTE CLIET1 S
bull CENTRAL JAVAU CANOAA 212 14E
--
098 PEKALONGAN
-1500
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102 - 7 0 GARUNGa 690
i 0 130
104 JlAPURWOKERTO
++CENTRAL JAVA LOAD
+105 + Dm
+POWER+-TJILATJA P TO WEST JAVA
POWER FROM WEST JAVA
SYSTEM OPERATION
-+--+ + +
103 S 05
SEMARANGSEMARANG 1036
WEST DJATINGALEH- HARBOR
ISEMARANGshy
1013 1A01LA
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W SOLO Ill JOGJAKARTA
-SOLOSL 252 MW El l
EXHIBIT 100 MW CENTRALJAVA
0 C ENTJAVA TRANSMISSION REQUIRENTS 117 - till
LINE CONTINGENCY LOAD FLOW TEST 3-11 1984 LOAD LEVEL - ALT I
C E CHAS T NAMt INTEMATIUALIN K VON[
BOSTON CNARLOTTE CLIENT InHAS A STTL KRTN CARK lNA 4 + N T fN GMLMA21011 4
i
This test defines the requirement for a second circuit
between Tegal and Semarang in the early stages of
development of the Ketenger 150 kV transmission
system
Transmission requirements for 1989 were developed using engineering
Judgement The transmission additions resulted in the same number of circuits
for both alternatives A and B
CENTRAL JAVA
TRAMISUISSION REIJIREMENTS 1877 - 199
ais 1977 1S u 1h6 250 Wlw M 111111I1O SMS 1 0 0 0eTJIULTJW Ume 1M 111W111M) ______ I__MlTIiceIS 50 50 10 INo
msum tag
a n-
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Im Ai- I- l
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A j - vI 1 1 1 I
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113 JAVA
__
A-1
AI A-7A-1-l
1
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W E1 JAVA -shy 9 I A t s a g stl
111L0 -- fftlal l
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I T JAVA 11-2 S I1-Is f P roI
113161
COiTRAL JAVA TRANSMISSION REQUIREMENTS 1977 - 198
LOAD FLOW TESTS ALTERNATIVE A
TEST DESCRIPTION RESULTS
Is LOAN
ITNEATIT
PLIERINTENCANOEITN WEST JAVA
V
TRAMSNISSINN LINES NORMAL ALL LINES
IN SERVICE
SYSTEPWEECE
LINESLIADED
mINim t
VITAIE LEVEL SNERATI
i IECTIN OUT ONE SINiLE LINE owFarcceptable h =havyt = modim KETEISEN AFil TO OUT OF SERVICE I=Iaisdoqnte I = light SYST[E
I X NORMAL very
2 50 NORMAL 03
3 SpoundEARAN X SEN 1 - PEKALONGANOUT mIn 10
4ONLY - X~ SEN W - PEKALONiAN h 091 5 X NORMAL i 105 0 -4SEN I - PEKALONGAN
X nut_ _ I 105
7 X NORMAL a h 032
Xox SEN W - PEKALONGAN OUT I
veryh 070
0 SEMARANG X NORMAL 9 h 105 10 + X SEN
OUT 1 - PEKALONGAN
I h 105
11 100 Mw at X NORMAL _ U 101
12 TJILATJAP X TEOALOUT - PURiOKERTO pound n 105
13 SEMARANG SEN W - PEKALONGAN OUTABHO SINOLE CIRCUIT DETWEENPONLYPUiWOENTO AND CAUNG 1 105
Exhibit B
CENTRAL JAVA TRANSMISSION REQUIREMENTS 1977 - 1989
LOAD FLOW TESTS ALTERNATIVE B
DESCRIPTION RESULTS TEST
PhR TRANSMISSIIN LINES LTS EFE I EAC E LOADED VLMINTERCANGENEST H IVA NORIAL ALL LINES SYSTEM LI1ES
LIAI1TH _ __ _ I NSERVICE
= LO DIE EIATI IO-H_ e d h=h eavy shy OgaIapound I EIIDIRECTION OU ahl edi m KE EIERMLEVEL = aocept =
OUT SONMIL LIE = I inadequatl I light SSTEmOF SERVICEN TIOUTIIIRW
1 0 g
0I NOAL I 2 l177 VIAN h eay
- PEKALO goodi 0
SEN =OUT-OAN
Ii NORMALXNI 50 0935SEMARA h4 a
x NORM AL
5
NA NOUTi IVery 01 - MAGELANGONY6ARUN6 PEKALO SE shy
h 0 ADD 2nd CIRCUIT TEALI
090h GA- TENAL M - PEKALO OUT EARA- AtONGNX ISEMW P 0035bullaO
X NORMAL 09 7
9 KALO GAN - T GAL I I h 0 02
-UIT NV -P ADx 2nPIRC - E A
19 4 OUTX72 000hIO I 12 po SEALNATEGAL 095I NORMAL - 9OAD2nd CIRCUITAAN II
OUTSEN - DEATINGALEH 10veryNORMALXSEMARA G 104413 9h OUT very
+ x SE - PEKALONGAN
h 07 14 I
X NORMAL la100 at15
vahry - PRWOKERTO I h0 71
SrTEOALX OUT OUTTJILAT AP10 PUR OKERTO h 095 E AL - - TEGA 0
ADDED 2nd CIRCUIT SEN11 2
Exhibit C
105
105
107 SEMARANG 105 SEARAN
PEKALONGAN WEST DJATINGALEH HARBOR
212-p- 1e 10 6--- 0-180
TEL IPA SEMARANGshy|41 1 61 TIMUR
MAGELANG
108 0 i PURWOKERTO I
1084
SOLOU2
i CENTRAL JAVA LOAD 1235 MWEI i
0 bullSOLOLS PURWOERTO 8 1
i TJILATJAP POWER TO WEST JAVA 0OETALJV POWER FROM WEST JAVA 500 M TRANSMISSION REQUIREMENTS 1177- a13W-
pSYSTEM OPERATION NO4AL LOAD FL~rlTESTTA
CHAS 1971 LOAD LEVEL - ALT
T MAIN INTElATIUALIC Ai|
1_0_ 1 0 9UN 1Sf C~aULITTL GIBE Ushy
30
---
105105105i SEMARANG
104 SEMARANG 105AR HARBORWEST DJATINGALEH 0shy111--104073 7 PEKALONGAN -834
9 9 10513 123 145 - - SEMARANG-TEBAL TII4UR
104 o 5DJELOK
103103 GARUNG L SALATMIGGA
BOJOLAL I
103 PURWOKERTO
W mom SOLO NJOGJAKARTA
CENTRAL JAVA LOAD 1235 MW E 103 EDN I1IT
TJILATJAP POWER TO WEST JAVA 500 MWA__T_7______ CENTRAL JAVA
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Exhibit B
CENTRAL JAVA TRANSMISSION REQUIREMENTS 1977 - 1989
LOAD FLOW TESTS ALTERNATIVE B
DESCRIPTION RESULTS TEST
PhR TRANSMISSIIN LINES LTS EFE I EAC E LOADED VLMINTERCANGENEST H IVA NORIAL ALL LINES SYSTEM LI1ES
LIAI1TH _ __ _ I NSERVICE
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Exhibit C
105
105
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CAS 1 VAIN INTEEOOATIS 0h S9 CNARLPTE CLIET1 S
bull CENTRAL JAVAU CANOAA 212 14E
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CAS 1 VAIN INTEEOOATIS 0h S9 CNARLPTE CLIET1 S
bull CENTRAL JAVAU CANOAA 212 14E
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102 - 7 0 GARUNGa 690
i 0 130
104 JlAPURWOKERTO
++CENTRAL JAVA LOAD
+105 + Dm
+POWER+-TJILATJA P TO WEST JAVA
POWER FROM WEST JAVA
SYSTEM OPERATION
-+--+ + +
103 S 05
SEMARANGSEMARANG 1036
WEST DJATINGALEH- HARBOR
ISEMARANGshy
1013 1A01LA
14AGELANG S iSLTG SOLO BOJOLALI
W SOLO Ill JOGJAKARTA
-SOLOSL 252 MW El l
EXHIBIT 100 MW CENTRALJAVA
0 C ENTJAVA TRANSMISSION REQUIRENTS 117 - till
LINE CONTINGENCY LOAD FLOW TEST 3-11 1984 LOAD LEVEL - ALT I
C E CHAS T NAMt INTEMATIUALIN K VON[
BOSTON CNARLOTTE CLIENT InHAS A STTL KRTN CARK lNA 4 + N T fN GMLMA21011 4
i
1025 105 1025 SEMARANG
098 SEMARANG 103 HARBOR PEKALONGAN WEST DJATINGALEH
114
0-i-SEMARANG
213 -- 30 I-06-404 1041
-shy TIMUR
SALATIGA
i~0 i I o57 SY TE2 I L--6 NCL I F TBOJOLALI
3Q POWER FROM WEST JAVA 0 RNMISO RQI REET 0shy
1 LOAD LEEL -T WoT MAINToAT
-
- TJIIATJAP POWER TO WEST JAVA
POWER FROM WEST JAVA 1O
0 n
CENTRAL JAVATRANSHIS31ON RE91IIIE4NTS 177 -lion
_ - SYSTEM OPERATION LINE CONTINGENCY LOAD FLOW TEST I -2 ~_It -- CHAS T IMAIN
LOAD LEVEL INTERNATIIAL
- ALTD1 lC
TI U CNLT11- X 111111
-SC TS WITO CAM
105
104 SEMARANG SEMARANG 104 HARBOR1037
PEKALONGAN WEST DJATINGALEH shy
--- 5-760_ 405 6 055 1 - 123 220e 297---- 417-L- 1045 ---m ---i- i iSEMARANG
INS TIMUR
4103 I OJELOK
GARUNG SALATIGA
722--4shy 17 5--l BOJOLALI
PURWOKERTO 1044
w SOLOMoo n t JOGJAKATAi m CENTRAL JAVA LOAD 252 MW 81T
105 TJILATJAP POWER TO WEST JAVA 0 fCENTRAL JAVA
1POWER FROM WEST JAVA 100 MW TRANSMISSION REqUIREMEITS 19U
LOAD FLLV TEST 1-13SYSTEM OPERATION NORMAL 19614 LOAD LEVEL - ALTI
S T MAIN INTENATIAL INCIC CNARLDTTE LETASSTMN
+ IA CII TO CAIMIL 77 - ]IISIETTS _emil
(N 105
SEMARANG104 HARBORSEMARANG 104
WEST DJATINGALEHPEKALONGAN 0m-- 409
_
16 5 --c
m 1SEMARANG TIMUR
IUR T I
102 10 MAGELANG
GARUNG SALATIGA13068T
i 1 302 BOJOLALI
PURWOKERTO 1037
W SOLO U~JOGJAKATAI SOLO SE
EXHIBIT 105 CENTRAL JAVA LOAD 252 MW
CENTRAL JAVATJILATJAP POWER TO WEST JAVA 0 TRANSMISSION REQUIREMENTS 1977 - 19POWER FROM WEST JAVA 100 MW
OAD FLOW TEST 1-14SYSTEM OPERATION LINE CONTINGENCY 194 LOAD LEVEL - ALT a CHAS T MAIN INTRNATIlNALINCit
BOSTON CHARLOTTE CLIENT IN
IA HTS NIN 2 4
LDJELOK
105 103 SEMARANG
098 SEMARANG 1036 HARBOR
-0 5 PEKALONGAN 735 WEST DJATINGALEHoamp-90 2
45 85 7 104 TEIK SEMARANG
r TIMJR
1103
GARUNG i _ d--pow mm1SALATIGA v ---- 22 43
T--LTA POWER TO 10 WC L
103 LA BOJOLALI
10 CETA JAA OA25 MWGLN
sWJOGJAKATA
-T AINIRERNTIALIN
0909 SOLO $i
- 108CENTRAL JAVA LOAD 252 MW EXHNIBIT _
POWER FROM WEST JAVA 0 TRANSMISSION REQUIREMENTS 1977 - If
__ - 1984 OPERATION NORMAL NSYSTEMLOAD FLOW TEST 1-1LIO LEVEL -ALT I i iCHAS T MAIN INEA IONINC
- MASSACHUSETTS BOSTON
CNARLOTTET _
IEN 2-O ff 1 494 -
UI 4
PEKALO -
0 996 SEMARANG 102 bull WEST DJATINGALEH
17-13701110 -1894 9 6 1 0 1
i
-
TIMUR
m
m
10 SEMARANG HARBOR A
1 0 4 SEMARANGshy
m T DJELOK
102 10 MAGELANG
W JOGJAKARTASOOU
ENTR5AL JAVA LOAD 252 MW SOLOS
TJIATAP POWER TOMWEST JAVA 0O CENTRAL JAVA
POE0RMWS AA -SYSTEM OPERATION LINE CONTINGENCY
TRANSMISSION RERUIRENENTS 1977 LOAD FLOWTESVUT8
1984 LOAD LEVEL --ALT I
SB
CAS 1 VAIN INTEEOOATIS 0h S9 CNARLPTE CLIET1 S
bull CENTRAL JAVAU CANOAA 212 14E
--
098 PEKALONGAN
-1500
TEBAL
102 - 7 0 GARUNGa 690
i 0 130
104 JlAPURWOKERTO
++CENTRAL JAVA LOAD
+105 + Dm
+POWER+-TJILATJA P TO WEST JAVA
POWER FROM WEST JAVA
SYSTEM OPERATION
-+--+ + +
103 S 05
SEMARANGSEMARANG 1036
WEST DJATINGALEH- HARBOR
ISEMARANGshy
1013 1A01LA
14AGELANG S iSLTG SOLO BOJOLALI
W SOLO Ill JOGJAKARTA
-SOLOSL 252 MW El l
EXHIBIT 100 MW CENTRALJAVA
0 C ENTJAVA TRANSMISSION REQUIRENTS 117 - till
LINE CONTINGENCY LOAD FLOW TEST 3-11 1984 LOAD LEVEL - ALT I
C E CHAS T NAMt INTEMATIUALIN K VON[
BOSTON CNARLOTTE CLIENT InHAS A STTL KRTN CARK lNA 4 + N T fN GMLMA21011 4
i
105
104 SEMARANG SEMARANG 104 HARBOR1037
PEKALONGAN WEST DJATINGALEH shy
--- 5-760_ 405 6 055 1 - 123 220e 297---- 417-L- 1045 ---m ---i- i iSEMARANG
INS TIMUR
4103 I OJELOK
GARUNG SALATIGA
722--4shy 17 5--l BOJOLALI
PURWOKERTO 1044
w SOLOMoo n t JOGJAKATAi m CENTRAL JAVA LOAD 252 MW 81T
105 TJILATJAP POWER TO WEST JAVA 0 fCENTRAL JAVA
1POWER FROM WEST JAVA 100 MW TRANSMISSION REqUIREMEITS 19U
LOAD FLLV TEST 1-13SYSTEM OPERATION NORMAL 19614 LOAD LEVEL - ALTI
S T MAIN INTENATIAL INCIC CNARLDTTE LETASSTMN
+ IA CII TO CAIMIL 77 - ]IISIETTS _emil
(N 105
SEMARANG104 HARBORSEMARANG 104
WEST DJATINGALEHPEKALONGAN 0m-- 409
_
16 5 --c
m 1SEMARANG TIMUR
IUR T I
102 10 MAGELANG
GARUNG SALATIGA13068T
i 1 302 BOJOLALI
PURWOKERTO 1037
W SOLO U~JOGJAKATAI SOLO SE
EXHIBIT 105 CENTRAL JAVA LOAD 252 MW
CENTRAL JAVATJILATJAP POWER TO WEST JAVA 0 TRANSMISSION REQUIREMENTS 1977 - 19POWER FROM WEST JAVA 100 MW
OAD FLOW TEST 1-14SYSTEM OPERATION LINE CONTINGENCY 194 LOAD LEVEL - ALT a CHAS T MAIN INTRNATIlNALINCit
BOSTON CHARLOTTE CLIENT IN
IA HTS NIN 2 4
LDJELOK
105 103 SEMARANG
098 SEMARANG 1036 HARBOR
-0 5 PEKALONGAN 735 WEST DJATINGALEHoamp-90 2
45 85 7 104 TEIK SEMARANG
r TIMJR
1103
GARUNG i _ d--pow mm1SALATIGA v ---- 22 43
T--LTA POWER TO 10 WC L
103 LA BOJOLALI
10 CETA JAA OA25 MWGLN
sWJOGJAKATA
-T AINIRERNTIALIN
0909 SOLO $i
- 108CENTRAL JAVA LOAD 252 MW EXHNIBIT _
POWER FROM WEST JAVA 0 TRANSMISSION REQUIREMENTS 1977 - If
__ - 1984 OPERATION NORMAL NSYSTEMLOAD FLOW TEST 1-1LIO LEVEL -ALT I i iCHAS T MAIN INEA IONINC
- MASSACHUSETTS BOSTON
CNARLOTTET _
IEN 2-O ff 1 494 -
UI 4
PEKALO -
0 996 SEMARANG 102 bull WEST DJATINGALEH
17-13701110 -1894 9 6 1 0 1
i
-
TIMUR
m
m
10 SEMARANG HARBOR A
1 0 4 SEMARANGshy
m T DJELOK
102 10 MAGELANG
W JOGJAKARTASOOU
ENTR5AL JAVA LOAD 252 MW SOLOS
TJIATAP POWER TOMWEST JAVA 0O CENTRAL JAVA
POE0RMWS AA -SYSTEM OPERATION LINE CONTINGENCY
TRANSMISSION RERUIRENENTS 1977 LOAD FLOWTESVUT8
1984 LOAD LEVEL --ALT I
SB
CAS 1 VAIN INTEEOOATIS 0h S9 CNARLPTE CLIET1 S
bull CENTRAL JAVAU CANOAA 212 14E
--
098 PEKALONGAN
-1500
TEBAL
102 - 7 0 GARUNGa 690
i 0 130
104 JlAPURWOKERTO
++CENTRAL JAVA LOAD
+105 + Dm
+POWER+-TJILATJA P TO WEST JAVA
POWER FROM WEST JAVA
SYSTEM OPERATION
-+--+ + +
103 S 05
SEMARANGSEMARANG 1036
WEST DJATINGALEH- HARBOR
ISEMARANGshy
1013 1A01LA
14AGELANG S iSLTG SOLO BOJOLALI
W SOLO Ill JOGJAKARTA
-SOLOSL 252 MW El l
EXHIBIT 100 MW CENTRALJAVA
0 C ENTJAVA TRANSMISSION REQUIRENTS 117 - till
LINE CONTINGENCY LOAD FLOW TEST 3-11 1984 LOAD LEVEL - ALT I
C E CHAS T NAMt INTEMATIUALIN K VON[
BOSTON CNARLOTTE CLIENT InHAS A STTL KRTN CARK lNA 4 + N T fN GMLMA21011 4
i
(N 105
SEMARANG104 HARBORSEMARANG 104
WEST DJATINGALEHPEKALONGAN 0m-- 409
_
16 5 --c
m 1SEMARANG TIMUR
IUR T I
102 10 MAGELANG
GARUNG SALATIGA13068T
i 1 302 BOJOLALI
PURWOKERTO 1037
W SOLO U~JOGJAKATAI SOLO SE
EXHIBIT 105 CENTRAL JAVA LOAD 252 MW
CENTRAL JAVATJILATJAP POWER TO WEST JAVA 0 TRANSMISSION REQUIREMENTS 1977 - 19POWER FROM WEST JAVA 100 MW
OAD FLOW TEST 1-14SYSTEM OPERATION LINE CONTINGENCY 194 LOAD LEVEL - ALT a CHAS T MAIN INTRNATIlNALINCit
BOSTON CHARLOTTE CLIENT IN
IA HTS NIN 2 4
LDJELOK
105 103 SEMARANG
098 SEMARANG 1036 HARBOR
-0 5 PEKALONGAN 735 WEST DJATINGALEHoamp-90 2
45 85 7 104 TEIK SEMARANG
r TIMJR
1103
GARUNG i _ d--pow mm1SALATIGA v ---- 22 43
T--LTA POWER TO 10 WC L
103 LA BOJOLALI
10 CETA JAA OA25 MWGLN
sWJOGJAKATA
-T AINIRERNTIALIN
0909 SOLO $i
- 108CENTRAL JAVA LOAD 252 MW EXHNIBIT _
POWER FROM WEST JAVA 0 TRANSMISSION REQUIREMENTS 1977 - If
__ - 1984 OPERATION NORMAL NSYSTEMLOAD FLOW TEST 1-1LIO LEVEL -ALT I i iCHAS T MAIN INEA IONINC
- MASSACHUSETTS BOSTON
CNARLOTTET _
IEN 2-O ff 1 494 -
UI 4
PEKALO -
0 996 SEMARANG 102 bull WEST DJATINGALEH
17-13701110 -1894 9 6 1 0 1
i
-
TIMUR
m
m
10 SEMARANG HARBOR A
1 0 4 SEMARANGshy
m T DJELOK
102 10 MAGELANG
W JOGJAKARTASOOU
ENTR5AL JAVA LOAD 252 MW SOLOS
TJIATAP POWER TOMWEST JAVA 0O CENTRAL JAVA
POE0RMWS AA -SYSTEM OPERATION LINE CONTINGENCY
TRANSMISSION RERUIRENENTS 1977 LOAD FLOWTESVUT8
1984 LOAD LEVEL --ALT I
SB
CAS 1 VAIN INTEEOOATIS 0h S9 CNARLPTE CLIET1 S
bull CENTRAL JAVAU CANOAA 212 14E
--
098 PEKALONGAN
-1500
TEBAL
102 - 7 0 GARUNGa 690
i 0 130
104 JlAPURWOKERTO
++CENTRAL JAVA LOAD
+105 + Dm
+POWER+-TJILATJA P TO WEST JAVA
POWER FROM WEST JAVA
SYSTEM OPERATION
-+--+ + +
103 S 05
SEMARANGSEMARANG 1036
WEST DJATINGALEH- HARBOR
ISEMARANGshy
1013 1A01LA
14AGELANG S iSLTG SOLO BOJOLALI
W SOLO Ill JOGJAKARTA
-SOLOSL 252 MW El l
EXHIBIT 100 MW CENTRALJAVA
0 C ENTJAVA TRANSMISSION REQUIRENTS 117 - till
LINE CONTINGENCY LOAD FLOW TEST 3-11 1984 LOAD LEVEL - ALT I
C E CHAS T NAMt INTEMATIUALIN K VON[
BOSTON CNARLOTTE CLIENT InHAS A STTL KRTN CARK lNA 4 + N T fN GMLMA21011 4
i
LDJELOK
105 103 SEMARANG
098 SEMARANG 1036 HARBOR
-0 5 PEKALONGAN 735 WEST DJATINGALEHoamp-90 2
45 85 7 104 TEIK SEMARANG
r TIMJR
1103
GARUNG i _ d--pow mm1SALATIGA v ---- 22 43
T--LTA POWER TO 10 WC L
103 LA BOJOLALI
10 CETA JAA OA25 MWGLN
sWJOGJAKATA
-T AINIRERNTIALIN
0909 SOLO $i
- 108CENTRAL JAVA LOAD 252 MW EXHNIBIT _
POWER FROM WEST JAVA 0 TRANSMISSION REQUIREMENTS 1977 - If
__ - 1984 OPERATION NORMAL NSYSTEMLOAD FLOW TEST 1-1LIO LEVEL -ALT I i iCHAS T MAIN INEA IONINC
- MASSACHUSETTS BOSTON
CNARLOTTET _
IEN 2-O ff 1 494 -
UI 4
PEKALO -
0 996 SEMARANG 102 bull WEST DJATINGALEH
17-13701110 -1894 9 6 1 0 1
i
-
TIMUR
m
m
10 SEMARANG HARBOR A
1 0 4 SEMARANGshy
m T DJELOK
102 10 MAGELANG
W JOGJAKARTASOOU
ENTR5AL JAVA LOAD 252 MW SOLOS
TJIATAP POWER TOMWEST JAVA 0O CENTRAL JAVA
POE0RMWS AA -SYSTEM OPERATION LINE CONTINGENCY
TRANSMISSION RERUIRENENTS 1977 LOAD FLOWTESVUT8
1984 LOAD LEVEL --ALT I
SB
CAS 1 VAIN INTEEOOATIS 0h S9 CNARLPTE CLIET1 S
bull CENTRAL JAVAU CANOAA 212 14E
--
098 PEKALONGAN
-1500
TEBAL
102 - 7 0 GARUNGa 690
i 0 130
104 JlAPURWOKERTO
++CENTRAL JAVA LOAD
+105 + Dm
+POWER+-TJILATJA P TO WEST JAVA
POWER FROM WEST JAVA
SYSTEM OPERATION
-+--+ + +
103 S 05
SEMARANGSEMARANG 1036
WEST DJATINGALEH- HARBOR
ISEMARANGshy
1013 1A01LA
14AGELANG S iSLTG SOLO BOJOLALI
W SOLO Ill JOGJAKARTA
-SOLOSL 252 MW El l
EXHIBIT 100 MW CENTRALJAVA
0 C ENTJAVA TRANSMISSION REQUIRENTS 117 - till
LINE CONTINGENCY LOAD FLOW TEST 3-11 1984 LOAD LEVEL - ALT I
C E CHAS T NAMt INTEMATIUALIN K VON[
BOSTON CNARLOTTE CLIENT InHAS A STTL KRTN CARK lNA 4 + N T fN GMLMA21011 4
i
UI 4
PEKALO -
0 996 SEMARANG 102 bull WEST DJATINGALEH
17-13701110 -1894 9 6 1 0 1
i
-
TIMUR
m
m
10 SEMARANG HARBOR A
1 0 4 SEMARANGshy
m T DJELOK
102 10 MAGELANG
W JOGJAKARTASOOU
ENTR5AL JAVA LOAD 252 MW SOLOS
TJIATAP POWER TOMWEST JAVA 0O CENTRAL JAVA
POE0RMWS AA -SYSTEM OPERATION LINE CONTINGENCY
TRANSMISSION RERUIRENENTS 1977 LOAD FLOWTESVUT8
1984 LOAD LEVEL --ALT I
SB
CAS 1 VAIN INTEEOOATIS 0h S9 CNARLPTE CLIET1 S
bull CENTRAL JAVAU CANOAA 212 14E
--
098 PEKALONGAN
-1500
TEBAL
102 - 7 0 GARUNGa 690
i 0 130
104 JlAPURWOKERTO
++CENTRAL JAVA LOAD
+105 + Dm
+POWER+-TJILATJA P TO WEST JAVA
POWER FROM WEST JAVA
SYSTEM OPERATION
-+--+ + +
103 S 05
SEMARANGSEMARANG 1036
WEST DJATINGALEH- HARBOR
ISEMARANGshy
1013 1A01LA
14AGELANG S iSLTG SOLO BOJOLALI
W SOLO Ill JOGJAKARTA
-SOLOSL 252 MW El l
EXHIBIT 100 MW CENTRALJAVA
0 C ENTJAVA TRANSMISSION REQUIRENTS 117 - till
LINE CONTINGENCY LOAD FLOW TEST 3-11 1984 LOAD LEVEL - ALT I
C E CHAS T NAMt INTEMATIUALIN K VON[
BOSTON CNARLOTTE CLIENT InHAS A STTL KRTN CARK lNA 4 + N T fN GMLMA21011 4
i
--
098 PEKALONGAN
-1500
TEBAL
102 - 7 0 GARUNGa 690
i 0 130
104 JlAPURWOKERTO
++CENTRAL JAVA LOAD
+105 + Dm
+POWER+-TJILATJA P TO WEST JAVA
POWER FROM WEST JAVA
SYSTEM OPERATION
-+--+ + +
103 S 05
SEMARANGSEMARANG 1036
WEST DJATINGALEH- HARBOR
ISEMARANGshy
1013 1A01LA
14AGELANG S iSLTG SOLO BOJOLALI
W SOLO Ill JOGJAKARTA
-SOLOSL 252 MW El l
EXHIBIT 100 MW CENTRALJAVA
0 C ENTJAVA TRANSMISSION REQUIRENTS 117 - till
LINE CONTINGENCY LOAD FLOW TEST 3-11 1984 LOAD LEVEL - ALT I
C E CHAS T NAMt INTEMATIUALIN K VON[
BOSTON CNARLOTTE CLIENT InHAS A STTL KRTN CARK lNA 4 + N T fN GMLMA21011 4
i