it is very useful ppt for engineers on trainig

1. SANAKAEDUCATIONALTRUST’SGROUP
OFINSTITUTIONS
DAMODAR VALLEY CORPORATION
ON
ABINASH KR. MAHATO(EEE)
ABHAY BHUCHASIYA(EE)
HARE KRISHNA PANDIT(EE)
AADIL AKHLAQ AHMAD(EE)
MD. QAMRE ALAM ANSARI(EEE)
Mr. SAROJ KUMAR BAYEN(LECT.)
Mr. SANDEEP MANDAL
( H.O.D OF ELECTRICAL ENGG. )

2.  DVC COMMAND AREA - 24,235 sq.kms.
 POWER MANAGEMENT
Total Installed Capacity - 2796.5MW
Thermal power station - Four
Thermal capacity - 2570MW
Hydelpower station - Three
Hydelcapacity - 147.2
Sub-stations -
At 220 KV - 11
At 132 KV - 33
Transmission lines
At 220 KV - 1342 Ckt. Kms
At 132 KV - 3419 Ckt. Kms
DVC INFRASTRUCTURE AT A GLANCE

3. NAME (Hydel) LOCATION EXISTING CAPACITY
Tilaiya River- Barakar
District –Hazaribagh 4 MW
State - Jharkhand (2*2 MW)
River - Barakar
Maithon District -Bardwan 60MW
State -West Bengal ( 3*20 MW)
Panchet River –Damodar
District -Dhanbad 80 MW
State-Jharkhand (2* 40 MW)
Total Hydel 144 MW
DVC AT A GLANCE

4. DVC POWER DISTRIBUTION MAP

5. Power Generation
 Entrusted with the responsibilities of providing the vital
input power for industrial growth in the resource rich
Damodar Valley region, DVC has been practically operating as
a pioneer, using latest available technologies to supply bulk
power at reasonable rates to the major industries.
 DVC has maintained its lead role in the eastern region by
adopting itself to the challenges of time and technology
during the course of last 59 years. DVC has been generating
and transmitting power since 1953 and has succeeded not
only in meeting the needs of consumers but has also helped
to increase the demand of power which itself is an index of
development.
GENERATION OVERVIEW

6. Maithon Hydal Power Station is
located on the river Barakar 12.9 km
above its confluence with the
Damodar near the border of Dhanbad
and Burdwan districts of the state
of Jharkhand and West Bengal
respectively. The unique feature of
this hydal 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.

7. Dam
Elements of Hydro Power plant
Storage
Reservoir
Spill way
In take
Pen
Stock
Turbine & Generator
Section
TransmissionLine

8. How Hydropower Works
Turbine is
connected to
a generator.
Power
generated is
transmitted ove
r power lines
RESERVOIR
WATER
through
PENSTOCK
Turbine

9. WATER TURBINE:
water turbines are used to convert the energy of falling
water into mechanical energy.

10. PENSTOCK:
It is a closed conduit which connects the fore bay or surge tank to the scroll
case of the turbine.

11. The Maithon Gas turbine has been setup by DVC in October 1989,
Constructed & commissioned by m/s GE, USA on Turnkey basis with total
cost of setup of $ 27024329 plus Rs. 57196697- Rs.4085 lacs. The main
purpose of plant setup is to serve as standby & emergency source of
power.

12. TECHNICAL OVERVIEW:-
Date of commissioning :- October 1989 e
No. of Unit: - 3 nos.
Capacity :- It comprises 3 units of 30MW (27.5MW nominally rated)
each
Type of FUEL:- Presently dual fuel basis (HSD-Naphtha) but capable of
conversion to gas and other liquid fuel.
Special feature: -
1.The emission meets the Ambient Air pollution norm. in terms of
decibel of sound, it conforms to sound pollution norm
2. Since the units run with hazardous fuel, the fire fighting network
is so designed (as per API standard) to achieve Non-combustible
atmosphere in less than a minute time.

13. OVERVIEW OF MAITHON GAS TURBINE UNITS
GT units run on peak cycle that is “Brayton Cycle” with 3 storage impulse turbine and 17 stage
axial compressor mounted on same shaft. It has 630 Hp starting diesel engine, 10nos. annular
combustion chamber. Turbine speed, 5082 RPM is reduced to 3000 RPM with reducing gear box.
Power evacuation system:
 Connected to grid through 132 KV- 2 lines to MHS & 2 lines to
patherdih .
 3 No.s 38MVA step up transformer 11.5KV/132KV.
 One 10mva station Auxiliary, Transformer 132KV/11KV.
 Station Source:
1) Station Auxiliary 2) Right Bank Source 3) Emergency D.G set
Exhaust System:
 Affluent: NIL.
 Exhaust Temp. 564 C
Combustion- Complete.
 Height of stack: 10.5 m
Fire protection System:
Halon and carbon dioxide system for GT units.
Foam, Hydrant point (17no.s) for plant.
Cooling water package:
In built cooling water system being integral part of line
package with cooling effect 15-20 C
Fuel :-
HSD: C.V- 10,300 K. Cal/Kg
Naphtha: C.V- 11,300K.cal/Kg
Specific Oil consumption: 0.39-
0.43 Lt/Kwh
Fuel transported by Road from
IOC, Rajbandh.
Storage Tank Capacity:
Naphtha: 2 x 4100 m3
H.S.D: 1700M3, 840 m3

14. The Load Dispatch Department is the nerve centre for the operation,
planning, monitoring and control of the power system. Electricity cannot
be stored and has to be produced when it is needed. It is therefore
essential that power system is planned and operated optimally &
economically.
This is the main objective of Load Dispatch Centre.

15. The objective of Load Dispatch Department
1. Matching the power demand with system
integrity, reliability and security of generation
and transmission facilities.
2. Regulating the system frequency.
3. Optimum utilization of resources.
4.Quick restoration of normalcy after system
disturbances.

16. Responsibilities of State Load Despatch Centre :
. Demand Estimation for operational purpose.
. Scheduling for Merit Order dispatch.
. Regulating Generation Load Balance.
. Schedule for Central Sector Drawl & Regulate it.
. Monitor bilateral power supply agreement.
. Maintain system frequency in 49.0 Hz to 50.5 Hz range.
. Outage planning and monitoring.
. Reactive power management and voltage control.
. Load Shedding Implementation.
. Coordination with RLDC and other constituents.

17. Central Testing Center at Maithon has two distinct divisions
namely
1. Central Relay and Instrument Testing Laboratory
(CRITL) and
2. Central Relay and Instrument Testing Mobile (CRITM).
The above two divisions take care of commissioning and
proper maintenance of the entire protection and metering
system, fault analysis as well as periodical testing of all types
of relays and meters including tariff meters of the entire
DVC network including power houses.

18. THANK YOU