SUMMER TRANING SEMINAR

SURATGARH SUPER THERMAL POWER

STATION

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“SSTPS” is owned by Rajasthan Rajya vidhyut Utpadan Nigam Ltd.

The techno-economic clearance for the project was issued by CEA in June 1991

Plant Capacity :1500 MW (6*250MW) units

EXTENSION UNIT : 7&8 (2*660MW)

SURATGARH SUPER THERMAL POWER STATION

It has generation capacity of 1500 MW and installed with six units of 250 MW each

It is a coal based thermal station

Coal is received from coal fields of MP , Jarkhand

Water is received from Indira Gandhi Canal

SURATGARH SUPER THERMAL POWER

STATION

INSTALLED CAPACITY

Unit Number Installed Capacity(MW) DOC

1 250 May,1998

2 250 Mar,2000 3 250

Oct,2001 4 250 Mar,2002 5 250 June,2003 6 250

May,2010

SITE SELECTION OF THERMAL POWER PLANT

Nearest to the load Centre Availability of water Land requirement Ash disposal Transportation facility Distance from populated area Availability of coal

BASIC PHENOMENON OF ELECTRICITY GENERATION

BASIC COMPONENT

Steam Turbine Boiler Generator Booster pump Cooling Tower Switch yard

Steam turbine is a rotating machine which CONVERTS HEAT ENERGY OF STEAM TO MECHANICAL ENERGY

The Thermal Power Plants with steam turbine uses Rankine cycle

The turbine is of tandem compound design with separate HP, IP and LP cylinder. The HP & IP turbines are of single flow type while LP turbine is of double flow type.

STEAM TURBINE

SPECIFICATION

TYPE CONDESING TENDEM RATED OUTPUT OF TURBINE 250KW RATED SPEED 3000RPM MAIN STEAM TEMPERTURE 537 DEG. C RATED PRESSURE 150 KG/CM

STEAM TURBINE

BOILER

It converts fuel energy into steam energy

The fuel may be furnace oil, diesel oil, natural gas or coal

The boiler installed in S.T.P.S. are made by BHEL

Continuous steam output of 375 tons/hour at 138 kg/cm2 pressure and 540 degree cent. Temp

GENERATOR

Generator is directly coupled with turbine and it convert mechanical energy into electrical energy

Energy conversion is based on the principal of the production of dynamically

In this plant water cool generator is used for generating electricity

Speed 3000 rpm/50Hz.

BOOSTER PUMP

50 % tandem boiler feed pump sets are supplied to this contact, three pump sets for each boiler

The booster pump is a single stage, horizontal, axial split casing type, having the suction and discharge branches on the casing bottom half

Hence it allows the pump internals to be removed without disturbing the suction and discharge pipe work of the alignment between the pump and the motor.

COOLING TOWER

A cooling tower is an equipment used to reduce the temperature of a water stream by extracting heat from water and emitting it to the atmosphere.

Cooling towers make use of evaporation where by some of the water is evaporated into a moving air stream and subsequently discharged into the atmosphere.

SWITCH YARD

220KV SYSTEM :- Each of the generator is connected to this

system through a step up of 125 MVA 240/ 11 KV yard generator transformer. There are two step down transformer each feeding 6.6 KV system (Station Switchyard ).

Four feeder take off from 220 switch yard two to SAKATPURA ,GSS  and other to HEERAPURA, Jaipur GSS.

220 KV System :- i). CIRCUIT BREAKERS ii). ISOLATOR

C.B & ISOLATER

These are used for automatic switching during normal or abnormal conditions . There are SF6 circuit breaker is used .

There are four types of C.B. Air blast C.B. Oil C.B. Vacuum C.B. SF6 C.B.ISOLATER:- These are used to disconnection transmission line under no-load condition for safety

LAYOUT OF THERMAL POWER PLANT