Page 1 of 6 TECHNICAL DATA SCHEDULE TRANSFORMER 40/50/60 MVA, 132/34.5kV ITEM DESCRIPTION UNITS REQUIRED GUARANTEED 1.0 Manufacturer - - T & R (I) LTD 1.1 Type - Three-phase with 2 windings Three-phase with 2 windings 1.2 Class - Power X’mer 2.0 Rated data and characteristics 2.1 Rated power: - primary/secondary MVA 40/50/60 40/50/60 2.2 Cooling - ONAN/ONAF/ONAF ONAN/ONAF1/ ONAF2 2.3 Rated voltage - HV winding - LV winding kV kV 132 34.5 132 34.5 2.4 Tap changer: - manufacturer - model - type - on-load tap changer location - regulating range - rating - - % - MR M III 500 CFVV HV neutral 132 kV +4 x 1.25% -12 x 1.25% Rated power on all taps Huaming CM III 500 Y High speed, transition resistor HV neutral 132 kv +4x1.25% -12x1.25% Rated power on all taps 2.5 Frequency Hz 50 50 2.6 Connection of the three-phase windings (group of vectors IEC 76) - YNd11 YNd11 2.7 Rated current at ONAF rated power and rated voltage tap: - HV winding - LV winding A A 263 1004.1 262.43@60M 1004.1 2.8 No-load current through: - HV winding - LV winding A A - - 0.5% of Rated full load current (Approx) 2.9 Short circuit impedance Base: rated voltage and 60 MVA Base: rated voltage and 60 MVA TRANSFORMER, 40/50/60 MVA, 132/34.5KV
Transcript
Page 1 of 6
TECHNICAL DATA SCHEDULE
TRANSFORMER 40/50/60 MVA, 132/34.5kV
ITEM DESCRIPTION UNITS REQUIRED GUARANTEED
1.0 Manufacturer - - T & R (I) LTD
1.1 Type - Three-phase with 2 windings
Three-phase with 2 windings
1.2 Class - Power X’mer
2.0 Rated data and characteristics
2.1 Rated power:
- primary/secondary
MVA
40/50/60
40/50/60
2.2 Cooling - ONAN/ONAF/ONAF ONAN/ONAF1/ ONAF2
2.3 Rated voltage
- HV winding - LV winding
kV kV
132 34.5
132 34.5
2.4 Tap changer:
- manufacturer
- model - type - on-load tap changer location
- regulating range - rating
-
-
% -
MR
M III 500 CFVV
HV neutral 132 kV
+4 x 1.25% -12 x 1.25%
Rated power on all taps
Huaming
CM III 500 Y High speed, transition resistor
HV neutral 132 kv +4x1.25% -12x1.25% Rated power on all taps
2.5 Frequency Hz 50 50
2.6 Connection of the three-phase windings (group of vectors IEC 76)
- YNd11 YNd11
2.7 Rated current at ONAF rated power and rated voltage tap:
- HV winding - LV winding
A A
263 1004.1
262.43@60M 1004.1
2.8 No-load current through:
- HV winding - LV winding
A A
- -
0.5% of Rated full load current (Approx)
2.9 Short circuit impedance Base: rated voltage and 60
MVA
Base: rated voltage and 60 MVA
TRANSFORMER, 40/50/60 MVA, 132/34.5KV
harshj
Typewritten text
Date: 10.12.2014
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harshj
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Rev-R1
Page 2 of 6
TECHNICAL DATA SCHEDULE
TRANSFORMER 40/50/60 MVA, 132/34.5kV
ITEM DESCRIPTION UNITS REQUIRED GUARANTEED
2.9.1 Direct impedance at nominal voltage tap:
- HV/LV
%
10
10% (Sub. To Tolerance)@60 MVA
2.9.2 Direct impedance at minimum voltage tap:
- HV/LV
%
-
9.25%(Approx)
2.9.3 Direct impedance at maximum voltage tap:
- HV/LV
%
-
10.3%(Approx)
2.9.4 Zero sequence impedance at nominal voltage tap
- HV / LV % - 9.0%(Approx)
2.10 Tolerance to be applied to the short circuit impedance, in terms of % of the guaranteed value on:
- nominal voltage tap - other taps
% %
±7.5 ±10
±7.5 ±10
2.11 Transformer capacity to withstand external short circuits:
2.11.1 Short circuit duration s 2 2
2.11.2 Symmetrical short circuit current withstand during the indicated period and asymmetrical short circuit withstand:
- HV winding kA RMS kA (peak)
- -
2.9 (Approx) 7.4(Approx)
- LV winding kA RMS kA (peak)
6.06(Approx) 15.5(Approx)
- tertiary winding kA RMS kA (peak)
- NA
- pre-fault voltage p.u. 1.05 1.05
2.12 Guaranteed losses
2.12.1 No-load losses at rated voltage and frequency, with rated voltage tap
kW - 32.0 (Max)
2.12.2 No-load losses at 110% of the rated voltage, at rated frequency and rated voltage tap
kW - 45.0 (Approx)
2.12.3 No-load losses capitalized value US $/kW 3000 3000
2.12.4 Tolerance to be applied to no-load losses (in % of the guaranteed value)
% 10 0%, Max Loss Specified
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TECHNICAL DATA SCHEDULE
TRANSFORMER 40/50/60 MVA, 132/34.5kV
ITEM DESCRIPTION UNITS REQUIRED GUARANTEED
2.12.5 On-load losses at rated voltage and frequency, with rated voltage tap and ONAN rating: - HV winding - LV winding – tertiary winding
kW kW kW
- - -
112 @ 40MVA 247.5@60 MVA NA
2.12.6 On-load losses capitalized value US $/kW 1080 1080
2.12.7 Tolerance to be applied to total losses (in %of the guaranteed value) for all the windings
% 10 0%, Max Loss Specified
2.12.8 Auxiliaries consumption at second stage of cooling (ONAF/ONAF)
kW - 4 KW
2.13 Highest voltage for equipment:
- HV winding - LV winding
kV kV
145 36
145 36
2.14
2.14.1
Rated insulation level:
Short time power frequency withstand:
- HV winding - line terminal - LV winding - line terminal - neutral - control wiring
kV RMS kV RMS kV RMS kV RMS
230 70 38 2.0
230 70 38 2.0
2.14.2 Basic impulse level:
- HV winding - line terminal - LV winding - line terminal - neutral point
kV (peak) kV (peak) kV (peak)
550 145 95
550 145 95
2.15 Temperature rise limits at maximum power output at ONAN and ONAF ratings and at lowest voltage tap and corresponding voltage:
- top oil at ambient temperature - average copper at ambient temperature
oC oC
60 65
60 65
2.16 Permissible overload in emergency cases:
- permanent permissible overload based on highest winding temperature which exceeds by 5oC the guaranteed limit
MVA
As per IEC-60076-7
- permanent permissible over voltage based on the maximum top oil temperature which exceeds by 5oC the guaranteed limit at rated power (in % of the rated voltage)
% As per IEC-60076-7
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TECHNICAL DATA SCHEDULE
TRANSFORMER 40/50/60 MVA, 132/34.5kV
ITEM DESCRIPTION UNITS REQUIRED GUARANTEED
2.17 Oil:
- manufacturer
- type - data sheet attached
- - -
PCB prohibited
- - -
PCB provided Apar/Savita or equi.
As per IEC-296
2.18 Bushings
2.18.1 HV bushings:
- class - manufacturer - type designation - rated current
- short circuit withstand - basic insulation level - power frequency withstand for 1 minute - connectors for - leakage distance
kV - - A
kA RMS
kV(peak) kV RMS - mm
145 - - - -
650 275 TBA
As per pollution level of site
145 ABB/ALSTOM/ CGL or equi. 800 A 25 times the rated current for 2 sec 650 275 - 3625 mm
2.18.2 LV bushings:
- class - manufacturer - type designation - rated current - short circuit withstand
- basic insulation level
- power frequency withstand for 1 minute - connectors for - leakage distance
kV - - A
KA RMS
kV (peak)
kV RMS
- mm
36 - - - -
170
70 TBA
As per pollution level of site
36 GENESIS/CJI or equi. Porcelain type 2000 A 25 times the rated current for 2 sec. 170 70 - 900 mm
2.18.3 Neutral bushings:
- class - manufacturer
- type designation - rated current - short circuit withstand
- basic insulation level
- power frequency withstand for 1 minute - connectors for
kV -
- A
kA RMS
kV (peak)
kV RMS
24 -
- - -
125
50 –
52 GENESIS/CJI/ or equi. Porcelain type 1000 A 25 times the rated current foe 2 sec 125 50 -
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TECHNICAL DATA SCHEDULE
TRANSFORMER 40/50/60 MVA, 132/34.5kV
ITEM DESCRIPTION UNITS REQUIRED GUARANTEED
- leakage distance mm As per pollution level at site
1300 mm
2.19
2.19.1
Design data:
Maximum flux density in the columns at:
- rated voltage - 105% of the rated voltage
tesla tesla
- -
1.6 T 1.68 T
2.19.2 Maximum flux density in the yokes at:
- rated voltage - 105% of the rated voltage
tesla tesla
- -
1.6 T 1.68 T
2.19.3 Maximum current density at ONAN rated power and rated voltage tap:
- HV winding
- LV winding
A/mm2
A/mm2
-
-
< 3.5 at ONAF2 A/mm2
< 3.5 at ONAF2 A/mm2
2.19.4 Winding resistance:
- HV winding - LV winding
ohms ohms
- -
0.61 ohm/ph. (Approx) 0.095 ohm/ph. (Approx)
2.19.5 Voltage regulation at ONAN rating and rated voltage tap (in % of the rated voltage):
- with unity power factor: . LV side . TV side
% %
- -
0.50@ 40 MVA NA
- with 0.9 power factor (lagging): . LV side . TV side
% %
- -
3.33 @ 40MVA NA
- with 0.8 power factor (lagging): . LV side . TV side
% %
- -
4.36 @ 40 MVA NA
2.19.6 Primary exciting current, LV side:
- at 0.01 second - at 0.1 second
kA kA
- -
0.5 % of rated current (Exciting current)
2.19.7 Core type (core or shell) - - Core
2.19.8 Winding conductor - Copper Copper
2.20 Audible noise level
- Voltage in percent of rated value - ONAN rating - ONAF maximum rating
% dB(A) dB(A)
105 75 max 78 max
105 75 max 78 max
2.21 Radio Interference Voltage at 0.5 MHz µV 2500 max 2500 max
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TECHNICAL DATA SCHEDULE
TRANSFORMER 40/50/60 MVA, 132/34.5kV
ITEM DESCRIPTION UNITS REQUIRED GUARANTEED
as per IEC 694
3.0 Weights and dimensions
3.1 Total weight of transformer, equipped for service
kg - 77000(approx)
3.2 Weight:
- oil - core and coil assembling - tank and accessories - net copper
- net core steel
kg kg kg kg
kg
- - - - -
17000(approx) 40000(approx) 20000(approx) 8250(approx) WITH INSULATION 28000(approx)
3.3 Maximum shipping weight (heaviest item) kg - 70000(approx) Oil Filled
3.4 Height from foundation to:
- highest point of HV bushing - highest point of tank - highest point of conservator tank - highest point of lifting hook to remove core and coil assembly
mm mm mm
mm
- - - -
As per Attached GA Drawing
3.5 Outline dimensions:
- length - width
mm mm
- -
3.6 Layout drawing no - To be enclosed with bid
3.7 Maximum shipping dimensions of tank: - outside height - outside width - outside length
