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SWAMI KESHVANAND INSTITUTE OF TECHNOLOGY
A
SEMINAR ON
PRACTICAL TRAINING
AT
“KOTA SUPER THERMAL POWER STATION”
SUBMITTED TO:-
DEPT. OF ELECTRICAL ENGINEERING
SUBMITTED BY:-
DEVKINANDAN NAGAR
08ESKEE018

KOTA SUPER THERMAL POWER STATION

INTRODUCTION
The “KOTA SUPER THERMAL POWER STATION” is ideally located on the left bank of CHAMBAL River at the upstream of “KOTA BARRAGE” thermal power station to produce electrical power for supply undertaking.
Stage 1 - 2 Unit (110 MW each )
Stage 2 - 2 Unit (210 MW each)
Stage 3- 1 Unit (210 MW)
Stage 4- 1Unit (195 MW)
Stage5- 1 Unit(195 MW)
Total generation of kstps = 1240 MW

IMPORTANT PARTS AND AUXILIARIES
Coal handling plant
Boiler
Super-heater and re-heaters
Economizer and air pre-heaters
Condensers
Ash handling plant
Turbine
Generator
Water treatment plant
Chimney
Switch yard & Control room

COAL HANDLING PLANT
FUNCTION - Automatic feeding of coal to boiler furnace
PROCESS - 1) Coal is unloaded from rail wagons in IV unit of KSTPS
2) Coal is sent to crusher where coal is reduced to very small size
Consumption of coal/Unit of electricity - 0.6 Kg
Consumption/day - 20000 tons/day
DEVICES -
Wagon Tripler - 5 (32 wagons/hr)
2) Vibration Feeders - Electromagnetic Type
3) Conveyor belts
Crushers - 6 (550 tons/hr)

Raw coal from bharat coal ltd. Dhanbad & bilaspur(MP)
Wagon tippler
To KSTPS from gudla via a single railway track
hoppers
bunkers
Crusher house
Coal mills
(pulverization)
Row coal feeders
Boiler furnace ( tangential firing of pulverized coal)

WATER CLEANING
CHEMICALMIXER
CLARIFLOCULATOR TANK
FLASH MIXER
RAW WATER
VALVE
FILTER BED
SUMP
∞
PUMP
CLARIFY WATER
CLARIFY WATER STORAGE
∞
PUMP

RAW WATER
WATERCYCLE
CHAMBAL
UPSTREAM
OPEN LOOP SYSTEM
CWPH
1-5
CONDENSOR
1-5
HOT WATER
RIVER
FILTER WATER
DM PLANT
WTP
SOFT WATER
DM WATER
CLARIFIED WATER
CONDENSOR
6-7
CWPH
6-7
CLOSED LOOP SYSTEM
COOLING TOWER 6-7

10
BOILER
FUNCTION– To generate the Steam
RAW MATERIALUSED- Pulverized Coal
WORKING FLUID – D.M. Water
COMBUSTION MEDIUM – Air
THREE FANS – PA fan , FD fan , ID fan

BOILER

TURBINE
FUNCTION- Turbine is a machine in which shaft is rotated by the impact of the working fluid such as steam,water etc.
Type– Reaction
TECHNICAL SPECIFICATION-
Rated output -- 110 MW
Rated speed – 3000 rpm
Direction of rotation – clockwise
Type -3 cylinder, impulse reaction
Heat flow at rated output – 2152.5 kcal/kwh
Quantity of oil - 1800 liters

TURBINE

SUPERHEATER
AND
REHEATER
SUPERHEATER
FUNCTION- To remove last traces of moisture from steam
Material –Carbon steel ,Cr-Mo alloy
Benefit – Increase efficiency of plant
REHEATER
Reheater are used to raise the temp of steam which has been expanded once in high pressure turbine. They used the heat absorbed from the flue gases.

AIR PRI-HEATER
Function - To raise the temperature of air
Benefit - Increases the efficiency of plant
Type - plate, tubular, regenerative
KSTPS - uses REGENERATIVE type

AIR PRE-HEATER

GENERATOR
It converts mechanical power into electrical power.
PRINCIPLE- Electromechanical energy
conversion
TECHNICAL SPECIFICATION-
Apparent output – 137.5 MVA
Active output - 110 MW
Power factor – 0.85 lag
Excitation voltage - 230 Volt
Rated voltage – 11 KV
Rated speed – 3000 rpm
Phase connection – star-star

ECONOMISER
Function-To extract some part of
heat from flue gases & heat the
feedwater
Process- Counter flow of flue
gases & water
Benefits- Increases efficiency

CONDENSER
To provide lowest economic heat rejection temperature for the steam. Thus saving on steam required per unit of electricity.
To convert exhaust steam to water for reuse thus saving on feed water requirement.

COLLING TOWER
It converts hot water from into cold water.
Its purpose is to re use of the water.
Its increase the efficiency of plant.
It increase the per capital investment of plant.
In K.S.T.P.S. only unit 6th and 7th has cooling tower.

ELECTROSTATIC PRECIPITATOR
Used for the removal of suspended particles and fly ash from industrial flue gases
PRINCIPLE- Produces an electrostatic field which attracts the ionized carbon particles and other such particulates which cause environmental pollution.

22

SWITCHYARD
Place where switching operations of power distribution is perfomed.
Outgoing Feeder
Beawer feeder -1,2
Heerapura feeder - 1,2
Sakatpura Feeder - 1,2,3

220KV SWITCHYARD
Main Equipment Of Switchyard
Bus Bar
Bus Coupler
Isolating switch
Earthing Switch
Lightning Arrester
Current & Potential Transformer (CT&PT)
Circuit Breaker
Capacitive Voltage Transformer (CVT)
Wave Trap
Supporting Structures

TRANSFORMER
GENERATING TRANSFORMER
UNIT AUXILLARY TRANSFORMER
TRANSFORMER
STATION TRANSFORMER
EXCITATION TRANSFORMER

CONCLUSION

THANK YOU

Dev

by Devkinandan Nagar on Sep 29, 2011

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