Training Presentation On Suratgarh Super Thermal Power Station (Raj) Submitted in partial fulfillment for the award of the Degree of BACHELOR OF TECHNOLOGY (Rajasthan Technical University, Kota) In Department of Electrical Engineering

Contents Introduction Power plant layout coal handling plant Ash Handling plant Turbine Boiler Condenser Cooling tower and ponds Economiser Super heater Air preheater Generator Transformers Control Room

Introduction 1. Suratgarh thermal power station is the first super thermal power Station of Rajasthan with total installed capacity of 1500 MW. 2. Suratgarh super thermal power station is located 27 km away from Suratgarh town in Ganganagar Dist. on the left bank of IGNP at Up Stream of Suratgarh Barrage. 3.This station is operated and maintained by Rajasthan Vidhyt Utpadan Nigam Limited.

UNITS IN S.S.T.P.S UNIT I -250 MW UNIT II -250 MW UN IT III -250 MW UNIT IV -250 MW UNIT V 250 MW UNIT VI -250 MW UNIT VII - 660MW(Under construction) UNIT VIII - 660MW(Under construction) Total Power Generation - 1500 MW

BLOCK DIAGRAM OF THERMAL POWER PLANT

Overview of coal handling plant Wagon tippler To SSTPS from gudla via a single railway track Coal By Bharat Coal Ltd. bunkers hoppers Crusher house Coal mills (pulverization) Raw coal feeders Boiler furnace ( tangential firing of pulverized coal)

Ash Handling Plant Ash in the coal varies from 5% in good quality coals to About 40% in poor quality coals. * Ash handling plant having the following operation Removal of ash from the furnace ash hoppers. ii. Transfer of this ash to a fill or storage and iii. disposal of stored ash

Turbine In a Thermal Power Plant generally 3 turbines are used to increase the efficiency. High Pressure Turbine(HPT): The superheated steam is directly fed to this turbine to rotate it. Intermediate Pressure Turbine(IPT): The out put from the HPT is reheated in a reheated(RH) and used to rotate IPT . Low Pressure Turbine(LPT): The Exhausted steam from the IPT is directly fed to rotate the shaft of LPT. Steam Super Heater Shaft Generator HPT IPT LPT RH Steam Condenser

Boiler In boiler heat energy is released from the combustion of fossils fuel and heat is transferred to different fluids in the system. Boilers are of two types- *Fire tube boiler. *Water tube boiler. Mode Of Heat Mediam Conduction Convection Radiation

Condenser The purpose is to condense the outlet (or exhaust) steam from steam turbine to obtain maximum efficiency and also to get the condensed steam in the form of pure water, otherwise known as condensate, back to steam generator or (boiler) as boiler feed water.

Cooling towers and ponds A condenser needs huge quantity of water to condense the steam . Typically a 2000MW plant needs about 1500MGallon of water. Cooling tower is a steel or concrete hyperbolic structure having a reservoir at the base for storage of cooled water Height of the cooling tower may be 150 m or so and diameter at the base is 150 m

Economiser Flue gases coming out of the boiler carry lot of heat. An economiser extracts a part of this heat from flue gases and uses it for heating feed water. This use of economiser results in saving coal consumption and higher boiler efficiency

Super-heater A Super-heater is a device which removes the last traces of moisture from the saturated steam leaving the boiler tubes and also increases its temperature above the saturation temperature

Air Pre Heaters Air pre-heater pre-heats (increases the temperature) the air supply to the furnace with the help of hot the gases. It is installed between the economiser and the chimney.

Generator The Synchronous Generator is used to Generate power by connecting the shaft of the Turbine to the shaft of the generator which cuts the magnetic flux producing Emf. The Generated Voltage will generally 11KV to 20 KV max. The Generated Voltage is stepped up by connecting Step up transformer and is transmitted and is also used for Auxiliary purposes

Transformers It is a device that transfers electric energy from one alternating-current circuit to one or more other circuits, either increasing or reducing the voltage. Uses for transformers. Step up transformer. Step down transformer. Transformers act through electromagnetic  induction; current in the primary coil induces current in the secondary coil.

Control Room The various controls performed from here are voltages adjustment, load control, emergency tripping of turbines etc. *

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