1

PROGRAMME NO. 1 - P.R.O

2

Damodar Valley corporation is the first ever multipurpose river valley project of

independent India which came into being on July 7, 1948 by an Act of the constituent

Assembly ( Act no. Xiv, 1948).

Having command area of 24,325 sq.kms spreading across the damodar basin , boundaries of

which transcends the state of Jharkhand & West Bengal . The upper valley consists of two

entirely districts ( Dhanbad & Bokaro) & eight districts partly ( Hazaribagh, Koderma, Giridih,

chhatra, Palamu, Ranchi, Lohardaga & dumka) in the state of Jharkhand .The lower valley on the

other hand consist of five districts partly ( Burdwan & Hoogly, Howrah , Bankura, & purulia) in the

state of West Bengal.

Since the beginning, DVC has given due emphasis on power generation & distribution, besides

flood control and irrigation, eco conservation & socio- economic development.

Today DVC power is a vital input to core sectors including Steel plants , Railways, collieries along

with State Electricity Boards of Jharkhand & West Bengal, big & medium industries within &

beyond the Damodar Valley.

DVC was set up with the intent of promoting & operating the schemes which may cause social and

economic uplift in the valley region. DVC has already established it existence in discharging its

obligations for more than five decades in perfect harmony. The difficult but effective water

management by Corporation has turned the devastating river Damodar from ‘River of Sorrow’

to ‘River of Prospects and opportunities ’. Proficient management of water resources through

dams ,canals & barrage, DVC facilitates irrigation as well as industrial & domestic water supply

which at large benefited the region as a whole. It has also contributed significantly in

conservation of soil & promotion of schemes of social integration in valley area.

***********

3

The mission

The mission at the time of its inception was :

Flood control

Promotion & operation of schemes for irrigation

Water supply for industrial & domestic use

Navigation & drainage

Generation , Transmission & Distribution of electrical energy

Promotion of a forestation and control of soil erosion in valley area

Promotion of public health , agriculture, industrial, economic & general well-being in

damodar valley

In keeping with industrialisation in DVC command area , power generation , transmission

& distribution gained priority for providing electricity to the core industries like steel ,

railways , coal & other industrial & consumers through respective State Electricity Boards .

However other mandated objectives also received equal importance as part of overall

responsibility and commitment of DVC.

Capacity addition programme for power generation gained a new direction when ministry

of power, Govt. Of India started advocating for setting up of thermal power plants at or

near pit heads & transmit power rather than transporting coal and advising DVC to world

towards adequate capacity addition during the Tenth and Eleventh plan in order to meet

the power vision. In addition to programme of capacity addition of 1210MW in Tenth Five

year plan and 6000MW in Eleventh plan , DVC has decided to rejuvenate the existing

unit through comprehensive overhauling and refurbishment.

Besides this , extension and augmentation of transmission network of DVC , devised with

the assistance of CEA and also strengthening of existing transmission and distribution

network are also under process of implementation.

DVC is implementing rural electrification project in states of West Bengal & Jharkhand

under “ Rajiv Gandhi Grameen vidyutikaran yojna ”

4

THE VISION

To establish DVC as one of the largest power majors of Eastern India while discharging

the responsibilities of its other objects adequately .

In order to achieve this goal against the backdrop of competitive market scenario in the

power sector, the objectives of the corporation have been redefined.

CORPORATE OBJECTIVES :

Generate more power at lowest possible cost by improving operational

efficiencies of the existing plants, rejuvenating old generating units through

comprehensive overhauling as well as by installing new generating plants

Transmit , distribute and supply reliable and quality power at competitive tariff.

Improve the financial health of corporation by adoption of efficient industrial ,

commercial and human resource management practices.

Ensure optimum utilization of available water resources through effective and

Efficient management and harness the remaining potential of Damodar basin to

extent possible.

Fortify measures for environmental protection at plant levels and to continue with

activities of conservation in the valley area.

Strengthen socio-economic development for the inhabitants of villages

neighbouring major projects of DVC.

Pioneering Role

First multipurpose river valley project of Government of India .

A Govt. Of India organisation generating power utilizing two sources – Coal and water

First Govt. Of India project managing generation transmission and distribution of

electricity

First underground hydel station at Maithon

Bokaro Thermal Power station , biggest thermal power plant of the nation in 50’s of last

century

Bokaro Thermal Power Station boilers, first to burn pulverized coal in India.

First re-heat units in India utilizing high steam parameter at Chandrapura Thermal Power

station

Mejia Thermal Power Station , first in eastern India for the application of Direct Ignition of

Pulverized coal (DIPC) system for reducing oil consumption in the boiler.

5

Mejia Thermal Power Station , First of its kind in eastern India with tube mills

With the time DVC developed and expanded its infrastructure Five thermal

power stations with a capacity of 2570 MW, three hydro-electric power stations

with a capacity of 144 MW and one gas turbine station with a capacity of 82.5

MW contribute to a total installed capacity of 2796.5 MW. Presently DVC has 60

sub-stations and receiving stations more than 5500-circuit km of transmission

and distribution lines. DVC has also four dams, a barrage and a network of

canals that play an effective role in water management. The construction of

check dams, development of forests and farms and upland and wasteland treatment developed by DVC play a vital role in eco conservation.

DVC Command Area 24,235 Sq. Kms

POWER MANAGEMENT

Total Installed Capacity 2796.5 MW

Thermal Power Stations Five Capacity 2570 MW

Hydel Power Stations Three Capacity 144 MW

Gas Turbine Station One Capacity 82.5 MW

Sub-stations and Receiving Stations At 220 KV– 11 nos.

At 132 KV– 33 nos.

At 33 KV– 16 nos.

Transmission Lines 220 KV– 1500 ckt kms

132 KV– 3415 ckt kms

33 KV– 1070 ckt kms

6

Water Management

Major Dams and Barrage Tilaiya, Konar, Maithon Panchet dams and

Durgapur Barrage

Irrigation Command Area (gross) 5.69 lakh hectares

Irrigation Potential Created 3.64 lakh hectares

Flood Reserve Capacity 1292 million Cu.m.

Canals 2494 kms

Soil Conservation

Forests, Farms, Upland and Wasteland Treatment 4 lakh hectares (approx)

Check Dams 16,000 (approx)

7

Name Location Existing Capacity Commissioning

HYDEL

Name Location Capacity Commissioning

THERMAL

Bokaro 'B' Dist- Bokaro

State- Jharkhand 630 MW (3 X 210 MW)

U-I Mar 86

U-II Nov 90

U-III Aug 93

Chandrapura Dist- Bokaro

State- Jharkhand 890 MW

(3 X 130 MW)

+

(2 X 250 MW)

U-I Oct 64

U-II May 65

U-III July 68

U-VII Nov 11

U-VIII Jul 11

Durgapur Dist.- Barddhaman

State- WestBengal 350 MW

(1X140 MW)

+

(1X210 MW)

U-III Dec 66

U-IV Sept 82

Mejia Dist.- Bankura

State- WestBengal 2340 MW (4 X 210 MW)

+

(2 X 250 MW)

+

(2 X 500 MW)

U-I Mar 96

U-II Mar 98

U-III Sept 99

U-IV Feb 05

U-V Feb 08

U-VI Sept 08

U-VII Aug 11

U-VIII Aug 12

DSTPS Dist.- Bardhaman

State- WestBengal 1000 MW (2 X 500 MW)

U-I May 12

U-II Mar 13

KTPS Dist.- Koderma

State- Jharkhand 500 MW (1 X 500 MW)

U-I July 13

Total Thermal 5710 MW

8

Tilaiya River- Barakar

Dist.-Hazaribagh

State- Jharkhand

4 MW (2 X 2 MW)

U-I Feb’53

U-II July’53

Maithon River- Barakar

Dist.- Burdhaman

State- West Bengal

63.2 MW (2 X 20 MW)

+

(1 X 23.2 MW)

U-I Oct’57

U-II Mar’58

U-II Dec’58

Panchet River- Damodar

Dist.- Dhanbad

State -Jhankhand

80 MW (2 X 40 MW)

U-I Dec’59

U-II Mar’91

Total Hydel . 147.2 MW

GRAND TOTAL 5857.2 MW

Powermap

9

Sl. No.

Project Unit Capacity (MW)

Status

Project implementation by DVC own

1 MTPS Extension Unit#5 250 MW COD declared on

29.02.2008

2 MTPS Extension Unit#6 250 MW COD declared on

24.09.2008

3 CTPS Extension Unit#7 250 MW COD declared on

02.11.2011

4 CTPS Extension Unit#8 250 MW COD declared on

15.07.2011

5 Mejia TPS Unit#7 500 MW COD declared on

02.08.2011

6 Mejia TPS Unit#8 500 MW Full load achieved on

26.03.2011

7 Koderma TPS Unit#1 500 MW Full load achieved on

20.07.2011

8 Koderma TPS Unit#2 500 MW Under Construction

9 Durgapur Steel TPS Unit#1 500 MW COD declared on

15.05.2012

10 Durgapur Steel TPS Unit#2 500 MW Full load achieved on

23.03.2012

11 Raghunathpur Ph-I TPS Unit#1 600 MW Under Construction

12 Raghunathpur Ph-I TPS Unit#2 600 MW Under Construction

13 Bokaro-A TPS Unit#1 500 MW Under Construction

Project implementation through Joint Venture

1 Maithon RB TPS [by MPL, JV of

DVC & TPC]

Unit#1 525 MW COD declared on

Sept'2011

Unit#2 525 MW Full load achieved on

May'2012

10

DVC started its Renovation & Modernization (R & M) Programme in 1987 in order to meet stricter pollution control standards, enhance operational efficiency and improve Plant Load Factor.

As part of its 10th plan activities DVC has planned for overall improvement of performance through comprehensive R & M / LE (Life Extension) of its old hydel and thermal power generating units based on Residual Life Assessment (RLA) studies. This conforms to the policy of the Government of India on LE of old power generation units by R & M with economical investment. Ten thermal units in operation from last 25 to 51 years and four hydel units in operation from 45 to 47 years have been taken up for RLA based R&M / LE work. Renovation and Moderization (R&M) wing has been renamed as Operation Services an Upgradation (OS&U) to look into the upgradation process / sytem for improved and sustained generation of power in DVC power plants. Major Activities of Operation Services and Up-gradation Operation Services • Regular monitoring of day-to-day power generation and associated O&M problems. • Assistance to power stations for maximization of generation and availability with approach towards zero forced outage. • Assistance for induction of improved maintenance management practices. • Formulate new maintenance strategies. • Generation and overhaul scheduling (Rolling Plan) and co-ordination with MOP, CEA and other external agencies. • Develop and implement new initiatives. • Collate and review O&M. budgets and cost reduction initiatives. • Co-ordinate O&M monitoring and lend proactive assistance. • Co-ordinate of trip analysis/ lessons learnt / feedback recycle. • Develop and update system and ensure compliance. • Service support to power stations in terms of :

11

Monitoring overhaul quality and other repair jobs at outside works.

Expert assistance from OEM and other reputed agencies. Developing improvement initiatives. Implementing improvement initiatives. Spares and vendor development. Finalization of purchase/works contracts requiring assistance

headquarters. Up-gradation Technology up gradation in different areas of power stations, replacement of obsolete equipment and modification in different areas such as boiler, turbine and their auxiliaries, coal handing plant, ash handing plant, coal mills, electrical systems.

12

FRONT VIEW OF SPILLWAYS OF MAITHON DAM :

Dams

Tilaiya Konar Maithon Panchet

Inauguration 21.02.53 15.10.55 27.09.57 06.12.59

On River Barakar Konar Barakar Damodar

District Hazaribagh Hazaribagh Dhanbad Dhanbad

State Jharkhand Jharkhand Jharkhand/

W. Bengal Jharkhand/

W.Bengal

Height above river bed (meters) 30.18 48.77 50.00* 40.84*

44.00** 45.00**

Length (meters) 366 4535 4860 6777

Width of roadway (meters) 3.81 5.79 6.78 10.67

Power generating capacity 2 x 2 MW - 3 x 20 MW 2 x 40 MW

Storage capacity (million cu.m.)

To dead storage 75.25 60.4 207.24 170.37

To top of gates 394.74 336.76 1361.84 1497.54

Allocation of storage capacities (MCM)

For irrigation & power 141.86 220.81 611.84 228.21

For flood control 177.63 55.51 542.76 1086.76

Drainage area (sq. km.) 984.2 997.1 6293.17 10966.1

Reservoir (sq. km.)

At dead storage level 15.38 7.49 24.28 27.92

At maximum conservation pool 38.45 23.15 71.35 121.81

13

Area top of gates 74.46 27.92 107.16 153.38

*Earthen Dam **Concrete Dam Durgapur Barrage

Year of construction 1955

Length 692 m

Number of gates 34 (including under sluice)

Size of gates 18.3m x 4.9m [60 ft x 16 ft]

Left & right under sluice 18.3m x 5.5 m [60 ft x 18 ft]

Operating levels Between RL. 64.5 m [211.5 ft] to RL. 63.4 m [208.0

ft]

Details of Canal Network.

Length

(Km) Discharge at Head

Regulator (Cumec)

LBMC (Left Bank Main Canal)(Canal originating

from Durgapur Barrage) 136.8 260

RBMC (Right Bank Main Canal) (Canal originating

from Durgapur Barrage) 88.5 64.3

Total length of main and branch canals 2494

DURGAPUR BARRAGE

14

Social Integration Programme DVC launched its Social Integration Programme (SIP) in 1981.SIP is basically

an expression of DVC’s deep commitment to socio-economic and infrastructural

development of the communities residing within a 10 Km radius of its main

projects. The programme started with 25 villages. At present it operates in 375 villages

covering 70 Panchayats in 12 blocks of Dhanbad, Giridih, Bokaro and

Hazaribagh districts of Jharkhand and Barddhaman, Purulia and Bankura districts of West Bengal.

Areas covered under the programme:

·Education

·Agriculture

·Health

·Infrastructural Development

·Sports and Culture

·Rural Electrification

·Self- employment ·Social Forestry

DVC’s Social Integration Programme (SIP) offers the following facilities:

Non-formal adult education centers, rural libraries and community centers run by

DVC to help spread literacy among the communities residing within a 10 km

radius of DVC’s main projects. All inputs are fed by DVC DVC runs 43 Sishu Siksha Kendras for imparting primary level education to

children of economically disadvantaged families and also to dropouts and those

over aged. At present 1200-1300 students are getting free primary education. In these Kendras students get reading and writing materials free of cost. Even

Kerosene oil is provided to run these Kendras in the remote areas of Panchet,

Konar and Tilaiya projects.

15

Children belonging to SIP villages are eligible to study in the schools meant for the children of DVC’s employees.

Social Development

DVC implements integrated social development work in villages situated with in 10 km area of it's major projects through it's social integration programme.

Environment Management

The Environment Management work of DVC consists of two parts the first part DVC is

installing proper equipment and augmenting majors to follow the pollution norms in it's

thermal power plants the second part consists of a forestations and other conservation

work for preservation of eco system of Damodar Valley area.

Soil Conservation

Soil Conservation work of DVC aims to check soil erosion, and siltation of dams,

improve agricultural production, afforestation and reserves ecological balance.

Rural Electrification

DVC has been entrusted with the responsibility of implementing rural electrification

project in selected district of West Bengal and Jharkhand under'RAJIV GANDHI

GRAMIN VIDYUTIKARAN YOJANA'.

Welfare

DVC provides various facilities for the well being of it's employees and their

dependents. Some of the facilities are also being extended to the villagers covered

under the social integration programme

DVC is engaged in the following activities to increase agricultural yield from

fields:

Initiation of micro-lift irrigation programmes in the upper valley Digging of irrigation wells Construction of check dams Renovation of ponds Arranging training programmes for farmers

DVC has constructed more than 16,000 check dams

Farmers of the local villages are encouraged to adopt modern scientific farming

practices, Experts from KVK, Sindri, Holy Cross Krishi Vigyan Kendra, Hazaribagh and

16

Birsa Agricultural University, Ranchi and R.K. Mission of Amarkanan Sewa Ashram, Purulia impart training in this regard.

DVC’s health programmes under SIP are basically preventive as well as curative in

nature

Preventive Health Services:

DVC organizes from time to time various camps

Pulse-polio immunization camp. Family welfare and operation camp. Anti-malaria camp. Aids and HIV awareness camp. Anti-diarrhea camp. Eye (cataract) operation camp. TB awareness and detection camp.

Infrastructural development works are essentially need-based activities:

Drinking water

Safe drinking water facilities through tap points, hand pumps and wells. Communication

Construction of roads (WBM / bituminous / PCC), culverts, drainage system,

passenger shelters etc. Education and Health Care

Construction of school buildings along with boundary walls, community

buildings, adult education centers and dispensary buildings Irrigation Facilities

Installation of micro lift irrigation/RL

Renovation and construction of ponds

Construction of check dams and irrigation wells. Others

Construction of toilets, urinals, washing and bathing ghats and burning ghats.

17

In SIP villages DVC is actively engaged in promoting sports and culture as

recreational activities so that the inhabitants may develop a healthy mind and a spirit of cooperation

Sports

Every year DVC organizes football tournament, cricket tournament, athletic

meet, volley ball tournament etc. in SIP villages Sports materials are provided to various youth clubs set up by DVC. Proper coaching by experts is arranged for promising players.

Cultural Activities

Different cultural activities based on local culture through various youth clubs set

up by DVC.

Training Programme and Self-employment

DVC is actively engaged in helping local unemployed youths find meaningful occupations. For this the following facilities are offered:

Training centers at Maithon, CTPS, BTPS, DTPS and Panchet. Youths sent to different centres run by outside organizations for training on

poultry, duckary, goattery, para-veterinary, plant propagation, dairy, diesel

pump mechanic, mushroom cultivation, piggery etc. First time assistance by DVC in terms of raw materials and kits to help trained

youths set up their own business/ enterprises.

18

We care for the Earth

DVC strongly believes that excellence in the environmental fields is of prime

importance. DVC strives to work with environmental issues in a consistent and

systematic manner.

DVC’s environmental management programme consists of

Pollution control at its thermal power stations and Combating soil erosion and soil decay in order to restore and preserve the

quality of the land.

Pollution Control

Pollutants in the form of ash and emissions from stack are the major sources of

pollution at coal-based thermal power stations. In old units, of DVC, at Bokaro,

Chandrapura and Durgapur, which were commissioned, before pollution control

standards became stringent, the following measures have been taken to bring the pollutants within the limits:

Initiation / installation of ESPs with additional fields to bring down emission

within limits. Renovation of de-ashing and ash handling system. Installation of oil and grease separator. Plantation in and around plant areas, ash disposal areas and outside the

project areas.

Modern units at MTPS, commissioned during 1990s, comply with latest

pollution control norms, including the provision of reuse and recycling of

maximum affluent to conserve land and water.

DVC’s solid waste management system consists of evacuation of ash from the

ash ponds at BTPS, CTPS and DTPS, transported in protective manner and

dumped into abandoned open cast coal mines of CCL, BCCL and ECL

respectively. After filling up of the mines is over, the top surface is covered with earth of sufficient thickness to facilitate growth of vegetation

19

PROGRAMME NO. 2 CLD

20

NATIONAL LOAD DISPATCH CENTRE supervise regional load dispatch centres

according to Sec-26(2)- act of Ministry of Power (2005).

These four regions are

ER - EAST REGION

WR- WEST REGION

NR – NORTH REGION

SR – SOUTH REGION

CLD- MAITHON comes under ER

CLD MAITHON IS RESPONSIBLE FOR :

Optimum Scheduling and dispatch of Electricity within the region

Monitor grid operation

Accounts of quantity of electricity transmitted through the regional grid

Supervise & control over Inter-State Transmission System.

Real Time Operation of grid control & dispatch of electricity through secure

& economic operations according with grid standard & grid code

21

04/

01/

201

4

BTPS CTPS DSTP

S DTPS MTPS

K

TP

S

Total

Blo

ck

U#

1

U#

2

U#

3

U#

1

U#

2

U#

3

U#

7

U#

8

U#

1

U#

2

U#

3

U#

4

U#

1

U#

2

U#

3

U#

4

U#

5

U#

6

U#

7

U#

8

U#

1

D

C

S

G

D

C

S

G

D

C

S

G

D

C

S

G

D

C

S

G

D

C

S

G

D

C

S

G

D

C

S

G

D

C

S

G

D

C

S

G

D

C

S

G

D

C

S

G

D

C

S

G

D

C

S

G

D

C

S

G

D

C

S

G

D

C

S

G

D

C

S

G

D

C

S

G

D

C

S

G

D

C

S

G

D

C

S

G

Rev

No 0 1 2 0 0 0 4 1 2 1 3 3 1 6 3 6 0 2 0 0 0 1 0 3 2 4 0 0 1 3 1 3 0 5 0 5 0

1

0 1 0 1 2

000

0

1

6

5

1

3

0

0 0

1

7

0

0

1

0

0

7

5

1

0

0

7

5

1

0

0

7

5

2

3

0

2

0

0

0 0

4

9

5

0 0 0

1

2

0

9

0

1

9

0

1

5

0

1

9

0

1

5

0

0 0

1

9

0

1

5

0

1

9

0

1

5

0

2

3

0

1

8

0

2

3

0

1

8

0

4

8

5

4

0

0

0 0

4

8

5

4

0

0

36

70

.0

24

05

.0

001

5

1

6

5

1

3

0

0 0

1

7

0

0

1

0

0

7

5

1

0

0

7

5

1

0

0

7

5

2

3

0

2

0

0

0 0

4

9

5

3

8

0

0 0

1

2

0

9

0

1

9

0

1

5

0

1

9

0

1

5

0

0 0

1

9

0

1

5

0

1

9

0

1

5

0

2

3

0

1

8

0

2

3

0

1

8

0

4

8

5

4

0

0

0 0

4

8

5

4

0

0

36

70

.0

27

85

.0

003

0

1

6

5

1

3

0

0 0

1

7

0

0

1

0

0

7

5

1

0

0

7

5

1

0

0

7

5

2

3

0

2

0

0

0 0

4

9

5

3

8

0

0 0

1

2

0

9

0

1

9

0

1

5

0

1

9

0

1

5

0

0 0

1

9

0

1

5

0

1

9

0

1

5

0

2

3

0

1

8

0

2

3

0

1

8

0

4

8

5

4

0

0

0 0

4

8

5

3

5

0

36

70

.0

27

35

.0

004

5

1

6

5

1

3

0

0 0

1

7

0

0

1

0

0

7

5

1

0

0

7

5

1

0

0

7

5

2

3

0

2

0

0

0 0

4

9

5

3

8

0

0 0

1

2

0

9

0

1

9

0

1

5

0

1

9

0

1

5

0

0 0

1

9

0

1

5

0

1

9

0

1

5

0

2

3

0

1

8

0

2

3

0

1

8

0

4

8

5

4

0

0

0 0

4

8

5

3

5

0

36

70

.0

27

35

.0

010

0

1

6

5

1

3

0

0 0

1

7

0

0

1

0

0

7

5

1

0

0

7

5

1

0

0

7

5

2

3

0

2

0

0

0 0

4

9

5

3

8

0

0 0

1

2

0

9

0

1

9

0

1

5

0

1

9

0

1

5

0

0 0

1

9

0

1

5

0

1

9

0

1

5

0

2

3

0

1

8

0

2

3

0

1

8

0

4

8

5

4

0

0

0 0

4

8

5

3

5

0

36

70

.0

27

35

.0

NOTE : BLOCK COVERS 1145 , BUT DUE TO LACK OF SPACE IT CANNOT BE TABULATED

22

SCADA/EMS or data server maintain all data acquired from other SLDCs etc an make it available to display and reporting.

data obtained from the summary diagram at CLD is tabulated as :

UI RATE OVER INJECTION (3) UNDER INJECTION(2)

BSEB JSEB DVC GRIDCO WBSEB

GENERATION 308 242 3384 2479 3092 DRWL SCHD -1404 -458 931 -446 850

ACT DRAWL -1467 328 1003 227 847

DEMAND -1468 570 2382 2704 3939

GENERATION AND UI RATE OF ALL THE POWER STATIONS OF DVC

ON – 04-01-2014 TIME 10:39 am (row- power station, column- units)

DSTPS BOKAROb MEJIA WARIA CTPS132 CTPSb KTPS

412mw 6.30paise

165mw 3.43paise

154mw 3.44paise

- 79mw 3.49pse

- 404mw

0 0 0 - - 404mw - 0 147mw 112 mw

4.77paise 104mw 3.49

0

- - 174mw 193mw 99mw -

23

- - 231mw - 0 -

- - 232mw - - - - - 443mw - - -

- - 0 - - -

COMMENTS :

The communication system failed to give real time data and UI

rate at that time ( e.g - UI rate of koderma)

MHS PHS THS -

UNIT 1 0 0 0 -

UNIT 2 0 0 0 - UNIT 3 0 0 0 -

TIME BLOCK AVERAGE FREQUENCY

10:00 - 10:15 49.98 HZ

10:15 - 10:30 49.82 HZ

NET EXPORT - 470 EXPORT RATE 162.20 PAISE

NET IMPORT - 301 IMPORT RATE 202.90 PAISE

TIE LINES

LINE MW

PURULIA PG1 (S) 25 PURULIYA PG2 24

KALYANESHWARI- MAITHON P.G1 -41 KALYANESHWARI- MAITHON P.G2 -39

DHANBAD – MAITHON P.G1 -58 DHANBAD – MAITHON P.G2 -54

MEJIA-JAMSHEDPUR P.G1 96

DSTPS- JAMSHEDPUR P.G1 122 DSTPS –JAMSHEDPUR P.G2 117

MEJIA – MAITHON P.G1 127

24

MEJIA MAITHON P.G2 125

MEJIA MAITHON P.G 2 86 TISCO( DV) -BARIPADA P.G1 126

TISCO(DV) -JAMSHEDPUR P.G2 252 KODERMA- B’SHARIF P.G1 370

KODERMA- B’SHARIF P.G2 367

KODERMA-MAITHON P.G1 240 KODERMA-MAITHON P.G2 235

RTPS- RANCHI P.G1 53 RTPS- MAITHON P.G2 102

GRIDCO TOTAL 819

JAMSHEDPUR-JODA R-18

WBSEB -16 WARIA – BIDHANNAGAR -1 76

WARIA - BIDHANNAGAR-2 78

JSEB 155 PATRATU- PATRATU TPS -1 0

PATRATU- PATRATU TPS -2 0 CHANDIL –MAINIKUI 0

MAITTHON- JAMTARA 52

BSEB 54 BARHI – B’SHARIF 14

BARHI - RAJGIR 0

NET INTERCHANGE 997/1004

Next Page

25

04-01-2014 DVC BUS VOLTAGE KV

MEJIA B 424 DSTPS 428

KODERMA 420 TISCO 418

RTPS 421

BOKARO B 219 CTPS 220 220

JAMSHEDPUR 226 KALYANESHWARI 226

MEJIA- TPS 230

PURULIYA 229 WARIA 0

ASP 138 CTPS 132 132

MAITHON (H) 133 MOSABANI 120

PANCHET 132

IMPORTANT LINES MW

JAMALPUR –MEJIA B1 -109

DURGAPUR- JAMALPUR 0 MAITHON- KHSTPP-I 61

MAITHON - KHSTPP -II 60

DURGAPUR-FSTPP- I -25 DURGAPUR- FSTPP-II -24

MAITHON-JAMALPUR-I -109

MAITHON-JAMALPUR-II -27

PURULIYA-JAMALPUR 0 JAMALPUR- ROURKELA-II -16

ROURKELA-RAIGHAR- I I

ROURKELA- TSTPP –I -92 ROURKELA-TSTPP-II -84

KHSTPP- B’SHARIF- I -344 KHSTPP –B’SHARIF-II -345

B’SHARIF-SASARAM-1 0

26

B’SHARIF-SHASARAM-II 233

SASARAM- ALLAHABAD-I -27 SASARAM-ALLAHABAD- II -231

RENGALI-TSTPP-I -230 RENGALI-TSTPP-II 316

RENGALI- INDRAVATI -342

INDRAVATI- JAYPORE 290 JAYPORE-GAJUWAKA-I 394

JAYPORE-GAJUWAKA-II 394 MAITHON-RANCHI-I 0

RANCHI-ROURKELA-I -21

RANCHI- ROURKELA-II -21

ER =WR= NR UI = 251 PAISE FREQUENCY= 49.98

SR UI= 279 PAISE FREQUENCY= 49.89

ACTUAL SCHEDULED ER-WR 497 MW 83 MW

ER-SR 504 MW 279 MW

ER-NR 215 MW 195 MW ER-NR 1818 MW 2995MW

27

28

PROGRAMME NO- 3 - TSC

29

PRELIMINARY WORKS

Selection of Route

Reconnaissance Survey

Preliminary Survey

Approvals & Clearances for the Line Route

CONSTRUCTION ACTIVITIES

Detailed Survey & Plotting of Profile

Tower Spotting & Tower Schedule

Check Survey & Location Marking

Stub Setting

Erection of Towers & Fixing of Accessories

Stringing of Conductors & Earth Wire

Earthing

Protection of Tower Footings

Clearing of Right of Way

Final Checking

Testing & Commissioning

30

TRANSMISSION ROUTE

The route of a transmission line is decided from the following main

considerations:

Shortest length, hence least capital cost.

Route near roads for easy approach & accessibility during construction

and maintenance.

Requirement of future loads near the proposed route so that the line

can easily be connected to the loads and optimal use of line.

Required separation distance from parallel communication lines (P&T,

Railways, etc.) for meeting the conditions of induced voltage for

obtaining PTCC approval.

Avoiding of forest areas as well as wild life sanctuaries as far as

possible.

Cost of securing and clearing right of way (ROW).

Maintaining statutory distances from Airports / Helipads

AVOID :-

Tough inaccessible areas

Towns and villages, leaving sufficient margin for their growth

Swamps and shallow lands subject to flood, marshy areas, low lying

lands, river beds and land slide zones, etc. involving risk of stability

for foundations

Rifle shooting areas and other protected areas such as army /

defence installations and ammunition depots.

Buildings / Storage areas for explosives or inflammable materials,

bulk oil storage tanks, oil or gas pipelines etc.

SURVEY OF LINES

METHOD : Theodolite , Total Station ,Satellite with Total Station

PLOTTING OF ROUTE PROFILE : Manual , PLSCAD

31

APPROVAL REQUIREMENT

Forest clearance

Railway clearance

Clearance from mining authority

NH Clearance

Power and Telecommunication Coordination Committee (PTCC)

clearance

CEA Clearance

MINIMUM CLEARANCE

MINIMUM CLEARANCE CONTINUED

32

MINIMUM CLEARANCE : IS: 5613 (Part II/Sec-1)-1976

MINIMUM CLEARANCE : AS PER - IS :5613 (PART II/SEC I) -1976

33

TOWER USED FOR TRANSMISSION LINE

Lattice type tower

A2, S15, B30, C60, D90 – 132&220KV line

A2, B15, C30, D60 – 400KV line

Wide base tower

Narrow base tower

Multi circuit Tower

Special Crossing Tower

APPLICATION OF SAG TEMPLATE ON PROFILE

34

TYPICAL BILL OF MATERIAL FOR THE CONSTRUCTION OF : 220KV DOUBLE CIRCUIT LINE

1. 220 kV D/C Tower with stub and cleats 10. ACSR Zebra conductor i. ‘A’ type 11. 7 / 4.00 mm GSS Earth wire ii. ‘B’ type 12. GI Bolts and Nuts iii. ‘C’ type iv. ‘D’ type 2. + 3.0 Mtr. Extension for 220 kV D/C Tower i. ‘A’ type ii. ‘B’ type iii. ‘C’ type iv. ‘D’ type 3. + 6.0 Mtr. Extension for 220 kV D/C Tower i. ‘A’ type ii. ‘B’ type iii. ‘C’ type iv. ‘D’ type 4. i. 220 kV D/C Special tower ii. +9.0 Mtr. Extension for 220 kV D/C Special Tower 5. GSS type structure i. ‘AT6’ type Column ii. ‘AT8’ type Column iii. ‘AB’ type Beam 13. Number plates 6. Earthing Material 14 Danger plates i. Pipe type earthing set 15 Phase plates ii. Counter poise type earthing set 16 circuit plates iii. Coke Churi 7. ACSR Zebra conductor Hardware and accessories i. Single tension Hardware compression type ii. Double tension Hardware compression type iii. Single suspension Hardware iv. Double suspension Hardware v. Preformed Armour Rod vi. Vibration Damper vii. Mid Span compression joint viii. Aluminium Repair sleeve xi. Jumper type suspension Hardware for single Zebra 8. Disc Insulators i. 120 kN Disc Insulator ii. 70 kN Disc Insulator 9. 7 / 4.00 Earth wire Hardware and Accessories i. Tension Assembly compression type ii. Suspension Assembly iii. Vibration Damper iv. Mid Span joint v. Repair sleev vi. Copper Earth bond

i. M 16 × 35 mm ii. M 16 × 40 mm iii. M 16 × 45 mm iv. M 16 × 50 mm v. M 16 × 55 mm vi. M 16 × 60 mm vii. M 16 × 65 mm viii. M 16 × 70 mm ix. M 16 × 75 mm x. M 16 × 80 mm xi. M 16 × 85 mm xii. M 16 × 175 mm Step Bolts xiii. GI spring washer, 16 × 3 mm

35

TOWER CONSTRUCTION : EXCAVATION MARKING CHART

The excavation pit marking drawing indicates the distance of centres, sides and corners of

the pits with reference to the centre point of the tower

From the dimensions shown in the drawing, the triangle ABC is first marked with the help

of a measuring tape. The distance CD, equal to F (width of the pit) is marked on the ground. The triangle AB'C is then marked by shifting the point B and without changing the points A and C. The distance CD', equal to F, is then marked. The sides DE and D'E, both equal to F, are then marked. The procedure is repeated for marking the other three pits.

The dimension G shown in the drawing is the centre to centre distance between stubs of the

tower at their lowest point. The dimension M is the diagonal distance between the ends of the stubs of the tower. The excavation pit marking drawing is prepared on the basis of these dimensions. TOWER FOUNDATION : PYRAMID CHIMNEY TYPE

36

37

38

39

FOLLOW THE STEPS TO ERECT THE TOWER

Erection of Tower body - first story Erection of Tower body - second story upwards Erection of cross arms

Conclusion: Pulley and guy ropes are the minimum accessories to erect a tower

40

STRINGING OF CONDUCTORS AND EARTHWIRE

HOSTING OF INSULATOR STRING

Single / Double suspension insulator strings are used on suspension towers and single /

double tension insulator strings are used on angle and dead end towers. This is indicated in the tower schedule.

Before hoisting, all insulators are cleaned in a manner that will not spoil, injure or scratch

the surface of the insulator, but in no case shall any oil be used for the purpose. Disc insulators shall be examined for any cracks / chipping, etc. Disc

insulators having any hair cracks or chipping or defective glazing or any other defect shall not be used . NO. OF DISC / E&M STRENGTH (KN)

400kv 220kv 132kv

single suspension –I string

1 X 23 120 KN

1 X 13 70 KN

1 X 9 45 KN

Double suspension-I String

2 X 24 120 KN

2 X 13 70KN

2 X 9 45 KN

Single suspension- v string

2 X 23 120 KN

N.A N.A

Double suspension v string

2 X 2 X 23 120KN N.A N.A

Single tension string

1 X 23 120 KN

1 X 14 120 KN

1 X 10 120KN

Double tension string

2 X 23 160KN

2 X 14 120KN

2 X 10 120KN

Single suspension pilot string

2 X 23 120KN

1 X 13 70KN

1 X 9 45KN

41

42

43

44

Substation construction

Selection of site As near the load centre as possible.

As far as possible rectangular or square in shape for ease of

proper orientation of bus – bars and feeders. Far away from obstructions, to permit easy and safe

approach / termination of high voltage overhead transmission lines.

Free from master plans / layouts or future development

activities to have free line corridors for the present and in future.

Easily accessible to the public road to facilitate transport of

material

As far as possible near a town and away from municipal dumping grounds, burial grounds, tanneries and other obnoxious areas.

g) Preferably fairly leveled ground. This facilitates reduction in leveling expenditure.

h) Above highest flood level (HFL) so that there is no water logging.

i) Sufficiently away from areas where police and military rifle practices are held.

45

Main Equipments of Sub-station: Transformer LA CVT/PT Isolator CT Circuit Breaker Control & Relay Panel

Sub station layout

46

47

Note : These layouts were essentially used in 220kv/ 132kv/ 33kv Dhanbad sub station ( TSE VT – 09-01-2014 AT D.S.S , DVC )

48

SECTION 132KV & 220KV TRANSFORMER BAY , DHANBAD S/S

49

BAY LAYOUTS OF 132KV AND 220 KV , DHANBAD S/S

50

EARTHING OF SUB STATION-

EARTH GRID

51

PROGRAMME NO. -4 :HYDEL

52

INTRODUCTION Maithon Hydel Power Station is located on the river Barakar about 12.9 km

above its confluence with the Damodar near the border of Dhanbad and

Burdwan districts of the states of Jharkhand and West Bengal respectively. The

unique feature of this Hydel Power Station is that it is located underground in

the left bank of the river and is the first of its kind in India. The Power Station

has a total generating capacity of 60 MW with 3 units of 20 MW each. 14-01-2014 - MAITHON HYDEL STATION AT A GLANCE :

drainage area 2430 sq mile

inflow maximum 2,50000 cusec

annual inflo max 70 inches

annual inflow min 30.5 inches

annual inflow avg 49 inches

area submerged at design 28,400 acre flood storag

length of back water 15 miles ( river)

maximum reservoir level EL- 500 ft

gross storage capacity 1040000 AC ft

flood control reservoir storage

EL 480’ – 500 ft

Monsoon storage capacity EL 435- 480 ft

Dead storage capacity 168000 acre fit

Estimated cost of maithon dam

13.68 crore

Estimated cost of hydel station

4.71 crore

ACCESS TUNNEL LENGTH 700 FT

ACCESS TUNNEL WIDTH 18FT

ACCESS TUNNEL HIGHT 21 FT

ACCESS TUNNEL SLOPE 12 %

BASEMENT FLOOR EL 310.50 FT

TURBINE FLOOR EL 324 FT

DEPTH OF POWER HOUSE 184FT

53

FROM ROADWAY

GENERATOR FLOOR EL 328 FT

AXIS OF TURBINE EL – 332 FT

SURGE CHAMBER EL 358 FT

TOP OF CRANE RAIL LEVEL 354 FT

ROTOR DIAMETER 14’

STATOR DIAMETER 21’

MAIN SHAFT DIAMETER 600MM

INTERMEDIATE SHAFT DIA. 630MM

WEIGHT OF INTR. SHAFT 10 TONS

NO. OF MAGNETIC POLES 34

WEIGHT OF THE STATOR 45+ 30 TONS

WEIGHT OF THE ROTOR 30 + 30 TONS

AIR GAP 11.5 TO 12 MM

SPAIRAL CASE DIAMETER 11.5/ 8.5’

DRAFT TUBE DIAMETER 10’/19.5’

NO. OF RUNNER BLADE 15

NO. OF GUIDE VAINS 24

NO. OF STAY VAIN 12

MONORAIL CAPACITY 10TONS

WEIGHT OF RUNNER 12 TONS

RUNNER CLEARANCE 1.25

GENERATOR CLEARANCE 0.2MM

TURBINE CLEARANCE 0.25MM

EOT CRANE CAPACITY 112 TONS

DISTANCE G1-G2-G3 55 FT

AXIS OF GENERATOR 1 54 FT

DISTANCE BTW TWO TRANSFORMER (11KV/33KV)

23 FT

LENGTH OF GENERATOR HALL

205’

WIDTH OF GENERATOR HALL

45’

MAITHON DAM

HIGHT ABOVE RESERVOIR BED= 162 FT

LENGTH ABOVE RESERVOIR BED= 2061 FT

EARTH DYKE RIGHT=6209 FT NON OVER FLOW DAM=

EARTH DYKE LEFT= 5329FT RIGHT ABUTMENT=395FT

BREACHMING DYKE =924FT LEFT ABUTMENT= 175.5 FT

CONCRETE DRAIN OVER ALL LENGTH=

54

SPILLWAY=618FT 157.2 FT

SPILL WAY SECTION=108 FT INCLUDING BUCKET=147FT

MAIN EARTH DAM 103 FT UPSTREAM CLAY B ANK 272

BASIC COMPONENTS OF MAITHON HYDEL POWER STATION

MAITHON DAM ( RESERVOIR ) : MHPS rely upon Maithon dam that holds back water creating large reservoir.

INTAKE -

Gates on the dam open and gravity pulls the water through the penstock, a pipeline that

leads to the turbine. Water builds up pressure as it flows through this pipe.

Turbine –

The water strikes and turns the large blades of a turbine, which is attached to a generator

above it by way of a shaft. The most common type of turbine for hydropower plants is the

Francis Turbine, which looks like a big disc with curved blades

Generators –

As the turbine blades turn, so do a series of magnets inside the generator. Giant magnets

rotate past copper coils, producing alternating current (AC) by moving electrons

Transformer –

The transformer inside the powerhouse takes the AC and converts it to higher-voltage current.

Power lines –

Out of every power plant come four wires: the three phases of power being produced

simultaneously plus a neutral or ground common to all three

Outflow –

Used water is carried through pipelines, called tailraces, and re-enters the river downstream.

UNIQUE FEATURES

Underground power station ( 1st of its kind ) in India

Horizontal axis francis turbine with unique conical draft tube

Black start facility (starting from low power generation)

55

TURBINE CONFUGERATION

Francis Turbine – manufactured by NEYPRIC , 24 wicket gates

56

FRANCIS TURBINE PARTS

Spiral Casing: The spiral casing around the runner of the turbine is known as volute casing.

All throughout its length, it has numerous openings at regular intervals to allow the working

fluid to impound on the blades of the runner. these openings convert the pressure energy of

the fluid into momentum energy just before the fluid impound on the blades. to maintain a

constant flow rate despite the fact that numerous openings have been provided for the fluid

to gain entry to the blades,the cross-sectional area of this casing decreases uniformly along

the circumference.

Guide or Stay Vanes: The primary function of the guide or stay vanes is to convert the

pressure energy of the fluid into the momentum energy. it also serves to direct the flow at

design angles to the runner blades

Runner Blades:Runner blades are the heart of any turbine as these are the centers where

the fluid strikes and the tangential force of the impact causes the shaft of the turbine to

rotate and hence electricity is produced. In this part one has to be very careful about the

blade angles at inlet and outlet as these are the major parameters affecting the power

production.

Draft tube ( conical )- The draft tube is a conduit which connects the runner exit to the tail

race where the water is being finally discharged from the turbine. The primary function of

the draft tube is to reduce the velocity of the discharged water to minimize the loss of

kinetic energy at the outlet. This permits the turbine to be set above the tail water without

any appreciable drop of available head. The purpose of providing a draft tube will be better

understood if we carefully study the net available head across a reaction turbine.

57

DRAFT TUBE / SPIRAL CASING / VOLUTE CASING

The Francis turbine is a type of reaction turbine, a category of turbine in which the working fluid

comes to the turbine under immense pressure and the energy is extracted by the turbine blades

from the working fluid. A part of the energy is given up by the fluid because of pressure changes

occurring in the blades of the turbine, quantified by the expression of Degree of reaction, while

the remaining part of the energy is extracted by the volute casing of the turbine. At the exit, water

acts on the spinning cup-shaped runner features, leaving at low velocity and low swirl with very

little kinetic or potential energy left. The turbine's exit tube is shaped to help decelerate the

water flow and recover the pressure.

GENERATOR 20MW – SIEMENS – GERMANY 3 PHASE

Y 11 KV – 1310- 1525 AMPERE , 176.5 RPM

25,000-29000KVA, COS₵ = 0.8

EXITATOR 295 /330 /445 V .....465 / 505 / 700 A

MAIN EXITATOR 310 / 333 / 500 V....478 /514 / 770 A

148 /171/ 385 KW , 176.5 RPM

V=140 , A =14

RAPIDIER DC GEN. 225/445V 23/25A , 5.2- 11 A

1485 RPM TEMP. 50degree TEMP

PILOT EXITATOR 230V / 15.6A , 3.6KW 1490 RPM

GEN. BEARING , LIFT PUMP MOTOR ELECTROMOTOREN WERKE KAISER,

58

250V / 8A 2HP RPM 1500 50DEGREE TEMP

AC GOVERNER SCREW PUMP (MOTOR) 1425RPM, 400V ,31.5 A, 17.7KW , COS₵=.9

PUMP ACTIEDOLAGET, AAG , 70.3 NHB

INTAKE SERVICE GATE MOTOR SIEMEN, 400V 6.6A 32KW

MOTOR GES- SHUNT EXCIETED CONTINUOUS SERVICE 250V, 21.7 A

1500RPM

EXHUST FAN MOTOR- BREMA AC INDUCTION ,35HP ,1460RPM 400V 3PH

UNDER SLUICE GATE 13” 18’ 15TON

DRAFT TUBE GATE 20”6’ – 20”2’ , KEEPER BAR 4” X 1 X 8DEG

DRAFT TUBE OPENING 19” 6’

DRAFT TUBE GATE & TURBINE DISTANCE 62” 4 ‘

SURGE CHAMBER MONO HOIST

CRANE HAVING TWO ROPE TWO MOTOR

7.4HP 9FT PER MINUTE

33 FT LIFT

SUMP PUMP MOTOR/ 3 PH INDUTION MOTOR 415V, 1470RPM 830 galon/ min

MG SET 3PH MOTOR DC GENERATOR

RENOVATION & MODERNISATION OF UNIT # 2 MHPS

BHEL

HYDROGENERATOR - 23,200 KW - 29,000 KVA -11,000 VOLT

STAR CONNECTED - 3PH - 50 HZ - .8 PF - CLOCKWISE ROTATION

176.5 RPM - RUNNER DIAMETER 3030 MM - GUIDE VANE = 24

13 STAINLESS STEEL BLADES.

PLC IN UNIT # 2

59

PROJECT BY : PIYUSH KUMAR SAHAY VT-( 02/01/2014)

To implant solar power in Maithon: - an inception during vt

Location:

The right side of the spill way can be utilised as implanting solar panels .

1000 no.’s of 2 x 2 m panels may occupy this vacant space

60