Overview of ntpc power plant
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OVERVIEW OF NTPC POWER PLANT
PRESENTED BY :-JAIDEEP VERMA 5TH - AMECHANICAL ENGG.
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CONTENTS
INTRODUCTIONBOILER AND ITS COMPONENTSTURBINEGENERATORSWITCHYARD
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INTRODUCTION
NTPC is India’s largest energy power plant which was established in 7 Nov. 1975 to generates power development in India.
There are total 7 units in plant in which 4 units are of 500MW and 3 units are of 200MW power produce.
Total consumption of coal for producing 2600MW is about 48000 tons of coal per day.
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BOILER
A boiler is closed vessel in which water is converted into steam by utilizing the heat of coal combustion.
Steam boilers are broadly classified into following two types:-
(a) Water tube boilers ,(b) Fire tube boilers.
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WATER TUBE BOILER
In a water tube boiler, water flows through the tubes and the hot gases of combustion flow over these tubes. Water-tube boilers are used for high-pressure boilers.
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TURBINE
A turbine is a rotary mechanical device that extracts energy from a fluid flow and converts it into useful work. In which there are THREE types of turbine used in NTPC power plant are as follows:-
High pressure turbine(HP). Intermediate pressure turbine(IP). Low pressure turbine(LP).
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HP TURBINE
HP turbine is a high pressure turbine the steam comes through the boiler first goes into HP turbine and it is a unidirectional turbine.
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IP TURBINE
In IP turbine the steam of HP turbine goes into the air preheater for reheating and after this steam flows into a IP turbine.
Intermediate pressure turbine is a bi-direction.
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LP TURBINE
The steam of IP turbine directly goes into a LP turbine for further expands the steam generating more energy.
LP turbine is large in size as compare to IP because it requires to handle the steam flow.
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GENERATOR
Generator is a device which converts mechanical energy of steam comes through the turbine into electrical energy.
Generating capacity of 500MW is 21KV O/P voltage. Existing speed of generator is 3000 rpm.
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GENERATOR TRANSFORMER
Generator transformer is used to store the power(ELECTRICITY) which is generated by the generator.
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SWITCHYARD
It is the protective part of the whole power system.
Switch yard is also most essential part for transmission, distribution, and collection.
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THANK YOU