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PRACTICAL TRAININGSEMINAR

ONKota Super Thermal Power Plant

Presented byPriyansh goyal

7th Sem , EE

08EE038

Presented ToMr. K.G SHARMA

Seminar Coordinator


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INTRODUCTION

It was establish in 1973.It is located at the left bank of the CHAMBLE River at the

upstream of KOTA BAIRAJ

1st & 2nd units are of 110 MW each

3rd ,4th &5th units are of 210 MW

6th & 7 unit of 195 MW

Total generation capacity(110+110+210+210+210+195+195) =1240 MW

Favorable condition

Abundant quantity of clean cooling water.Good transport facility

Concentration of load in Kota region due to large number of

industries.


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Operation of thermal power plant.

Layout

Coal handling plant

Ash handling plant Boiler

Steam Turbine

Generator

Cooling system Transformer

Water pump

Protection

Main parts of Kota Super ThermalPower Plant


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Operation of thermal power plant.


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COALHAND

ASH

STOR

COALSTOR

ASH

HAND

BOILER SUPHEATER

ECO

AIR,PREHEATER

TURB

CONDENSER

TRANALT

CHI

LAYOUT


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Layout of thermal power plant


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1). The thermal power station burns the fuel and use the heat

to raise the steam.2). Heat from the coal is absorbed by kilometers long tubes in

boiler walls by Boiler Feed Water and transferred to theturbine blades rotating them.

3). When turbine rotates, the rotor housed inside the statorturns with it.

4). Electricity is produced by the movement of magnetic fieldcreated by rotor.

5). This electricity passes to the transformer which steps up

the voltage for effective transmission.6). The used steam is changed back into water in the

condenser for reuse.


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Coal handling plant

Wagon unloading system

Crushing system

Conveying system

Coal handling plant section


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Wagon unloading system

Unload the coal fromwagon to hopper.

Hopper allows to passcoal pieces 200mm

From hopper coal fall onvibrator which issupported by roller.


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Crushing system

CRUSHER HOUSE:- Its mainfunction to crush the coalto 20mm

Two types

Primary crusher

oRail crusher

oRotary breaker

Secondary crusher


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Conveying system

Stacker reclaimer:- This unitcan stack the material on tothe pipe and feed on to themain line conveyor.

Specification:-

Belt width : 1400mm

Speed : 2.2m/sec

Total install power : 360kw

Capacity : 1350/750 ton/hr

No. of conveyor: 38


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It can be divided into 4 sub plants :

Fuel and Ash plant

Air and Gas plant

Feed water and steam circuit.

Cooling water circuit.

Coal fired steam power plant


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It is a closed vessel in which water under pressure is convertinto steam.

Hot water or steam used to transfer heat to a process.

A boiler is always designed to absorb max amount of heatreleased in process of combustion.

Furnace:- It is primary part of boiler where the

Boiler

ChemicalEnergy of

fuel

ThermalEnergy by

combustion


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FIRING ACTION IN BOILER

Boilers are tangentially fired

Fuel


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Steam Turbine

It is a machine in which a

shaft is rotated steadilyby reaction of steam, air,water, gases etc. uponblades of a wheel.

When Steam is used thencalled steam turbine.

KineticEnergy

Mechanicalpower


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Generator

An electrical generator is a

machine which convertsmechanical energy into electricalenergy through electromechanical energy conversion .

The generator is driven by

directly coupled steam turbine ata speed of 3000 r.p.m

ElectricalEnergy

Mechanicalpower


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Cooling System

In KSTPS hydrogen

cooling system is

employed for generatorcooling.

Hydrogen is used

because of its superior

cooling properties &low density.

Thermal conductivity

of H2 7.3 times of air.


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Circulating water pump:- It is arequirement of the condenser tocondensate the steam by coolingwater. Five pump are used forcondensing.

Each pump has capacity of 8275m3/hr and develop pressure about1.94kg/cm2

Firstly water is purified and filtered

and pumped to elevation of 42 mtrwhere it is stored and used forcooling the oil cooler.

Water pump


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TRANSFORMER

Transformer:- It is a static

device used to changevoltage level keeping thepower and frequency same.

There are nearly 83transformer through out theplant. Transformer arelocated b/w main plant &switchyard.

Types of transformer

a) Generator Transformer-Ab) Generator Transformer-B

c) Station transformer

d) Unit auxiliary transformer

e) Station servicetransformer


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Protection

Protection of stator

Faults:- Phase to phase fault. Phase to phase earth. Short circuit b/w lines. Overheating

Various device are used todetect faults which can givealarm to operator.

It is required to have minimumtripping time.

Protection of winding

Faults

First rotor fault

Second rotor fault.

Interterm fault.

Magnetic unbalance canproduce can produce seriousvibration and distortion of therotor shaft.


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Any Queries ? ? ?

THANK YOU!!!

&

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