A

Seminar Report

On

Practical Training Undergone At

“KOTA SUPER THERMAL POWER STATION”Submitted to

RAJASTHAN TECHNICAL UNIVERSITY

For the partial fulfilment of the requirement of the degree of

BACHELOR OF TECHNOLOGY

IN

(ELECTRICAL ENGINEERING)2011

Submitted to: Submitted By : Er. Bharat Bhushan Jain Anil Singh(HOD of electrical Department) B.Tech. IV year AIET Roll No- 04

AIET

DEPARTMENT OF ELECTRICAL ENGINEERINGARYA INSTITUTE OF ENGINEERING AND TECHNOLOGY KUKAS, JAIPUR

INTRODUCTION OF KSTPS

In April 1973, Central Electricity Authority prepared a Project Report for power station comprising of the two units of each of capacity 110 MW

The planning commission cleared the project report in Sept., 1976 for installation of two units each of 110 MW in first estimated cost of Rs. 143 Crores.

These two units was manufactured by BHEL, Hyderabad.

SYNCHRONISING DATE OF UNITS

Stage Unit No. Capacity(MW) Synchronising Date

Cost(Rs. Crore)

I 1 110 17.1.1983 143

2 110 13.7.1983

II 3 210 25.9.1988 480

4 210 1.5.1989

III 5 210 26.3.1994 480

IV 6 195 31.7.2003 635

V 7 195 30.5.2009 880

SALIENT FEATURE OF K.S.T.P.S

LOCATION Sakatpura, Kota. CAPACITY 1240MW A) 1ST Stage . 2x110 MW. B) 2nd Stage. 2x210 MW. C) 3rd Stage. 1x210 MW. D) 4th Stage 1x195 MW. E) 5th Stage. 1x195 MW.(to be commissioned in

Sept 2009).

SOURCE OF WATER. Chambal River. BOILER a) type water tube boiler. b )No. of units. 6 c) Max. efficiency. BHEL (86.6 + 1) % d) Capacity. 375 tonnes 1 Hr. e) Steam Pressure 139 Kg./cm2

f) Steam Temp. 540oC g) No. of draft fans in i) FD fans 2 Units ( Each boiler) ii) ID fan 2 Units ( Each boiler ). h) No. of Air fans in Service. i) Primary 2 Units. ii) Seal Air fan. 1 Unit. iii) Scanner. 1 Unit. i) No. of coal mills in service. 3 Units. j) No. of Soot blower in service 68

FUELS A) Coal. i) Type Stack Coal ii) Calorific Value. 4450 K.Cal./Kg. iii) Qty. Used. 3074 tonnes per day. iv) Ash contents. 40% v) Sulphur contents. 0.5%. vi) Type of Handling. Belt Conveyor. vii) Type of disposal of Ash. a) Fly Ash. Wet b) Bottom Ash. Wet. B) OIL i) Type. HSD & Furnace Oil. ii) Qty. used. As per requirement & draft

conditions.

GENERAL LAYOUT AND BASIC IDEA

The conversion from coal to electricity takes place in three stages. Stage 1 The first conversion of energy takes place in the boiler. Coal is

burnt in the boiler furnace to produce heat. Carbon in the coal and Oxygen in the air combine to produce Carbon Dioxide and heat.

Stage 2 The second stage is the thermodynamic process. The heat from combustion of the coal boils water in the boiler to

produce steam. In modern power plant, boilers produce steam at a high pressure and temperature. 

The steam is then piped to a turbine.  The high pressure steam impinges and expands across a number

of sets of blades in the turbine. 

The impulse and the thrust created rotates the turbine. 

The steam is then condensed and pumped back into the boiler to repeat the cycle.

Stage 3 In the third stage, rotation of the turbine rotates

the generator rotor to produce electricity based of Faraday’s Principle of electromagnetic induction.

Control system of station is based on Rankin Cycle. To increase the heat economy and efficiency we use number

of modification in the plant.

COMPONENTS OF STEAM POWER PLANT

Coal storage Coal handling plant Boiler Boiler furnace Super heater Economizer Air-Preheater Chimney Dust collector Induced draught fan

Forced draught fan Main valve Turbine Alternator Exciter Condenser Cooling tower Pumps Ash storage Ash handling plant

The Kota Super Thermal Power Station is divided into four main circuits:-

Fuel and Ash Circuit. Air and Gas Circuit. Feed water and Steam Circuit. Cooling Water Circuit.

BOILERS

A boiler is a closed vessel in which water or other fluid is heated. The heated or vaporized fluid exits the boiler for use in various processes or heating applications

CLASSIFICATION HORIZONTAL , VERTICAL & INCLINED FIRE TUBE & WATER TUBE COMPONENTS: SUPERHEATER AIRPREHEATER EVAPORATOR ECONOMISER DEAERATOR DESUPERHEATER

STEAM TURBINE

NOZZLE BLADE EFFICIENCY-86.6% STEAM PRESSURE-150

Kg/Cm2

STEAM TEMPERATURE : - 535-545 0C

OPERATE ON RANKINE CYCLE

COAL HANDLING PLANT The main coal sources for KTPS are SECL (South

Eastern Coalfields Limited), ECL (Eastern Coalfield Limited) and BCCL (Bharat Coking Coal Limited).

It costs approximate 2 crores of rupees per day including transportation expenses.

coal is firstly unloaded from wagon by wagon triplers And then coal is crushed by crushers. And then coal is transformed to the boiler by

magnetic pully.

COAL HANDLING BROADLY DIVIDE INTO THREE SECTIONS:

Wagon Unloading System.

Crushing System. Conveying System.

ASH HANDLING PLANT

Fuel and Ash Plant. Air and Gas Plant. Ash Disposal and & Dust Collection

Plant.

CONTROL ROOM

In control room various controls are provided simultaneously various measurement are made various relays are provided here.

220 KV SWITCHYARD

TO SYNCHRONIZE BETWEEN LOAD & GENERATOR

PROVIDE CONSTANT,RELIABLE,CONSISTENT & NON FLUCTUATING POWER SUPPLY

COMPONENTS OF SWITCHYARD

BUSBARS LIGHTING ARRESTORS C.T. P.T. WAVE TRAP POWER TRANSFORMER INDICATING & METERING EQUIPMENTS ISOLATORS EARTHING SWITCHES C.B. RELAY VACCUM TYPE,AIR C.B.,M.C.B.

OTHER EQUIPMENTSo Series Reactoro Coupling capacitor o Shunt capacitor

Thank you