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APractical Training Report on

BADARPUR THERMAL POWERPLANT

Submitted in partial fulfillment ofthe award of

BACHELOROF TECHNOLOGY

(Rajasthan TechnicalUniversity, Kota)

In

ELECTRICAL ENGINEERING

Session 2009-2010

Submitted To:- Submitted By:-

Head of Department NISHANT KUMAR LODHA

07EE37

FinalYear (VII Semester)

Department of Electrical Engineering

Govt. Engineering College, Ajmer


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ACKNOWLEDGEMENT

Acknowledgements are not the full expressions of ones gratitude towards the person whose

help is acknowledged. Though language is an inadequate medium to express ones

sentiments, it is the only way one can recall ones grateful indebtedness to ones benefactor.

Words are boundless to express my heartfelt gratitude and I am thankful to all the

NTPC employees who have directly / indirectly helped us understanding the power plant

during the training period.

Also, I am grateful to the entire NTPC Management as they have been very helpful

at every step during the entire training duration. I take pleasure in expressing my

gratefulness to Mrs. Rachana Singh Bhal and Mr. Man Mohan Singh for their

invaluable guidance and inspiring suggestions.

I also extend my sincere thanks to Mrs.PremlataSaini (Training Head) for her

support throughout the training period and Mr. RohitUpadhayay, Mr. Abhishek Kothari,

Mrs.Sunita Mauryaand Mr. JagdishGupta in terms of providing valuable guidance and

important material whenever required.

NISHANT KUMAR LODHA


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ABSTRACT

I have completed my vocational training during the period 12-05-2010 to 18-06-2010 from

Badarpur Thermal Power Plant,New Delhi. In this report the main emphasis is on the Power

Generation Process. In the starting of this report the introductory aspects of NTPC allover

India has been covered. Later I have explained the principle of operation and basic

equipments used for the generation of power.

Recognizing its excellent performance and vast potential, Government of the India

has identified NTPC as one of the jewels of Public Sector 'Navratnas'- a potential global

giant. Inspired by its glorious past and vibrant present, NTPC is well on its way to realize it's

vision of being "A world class integrated power major, powering India's growth, with

increasing global presence".


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CONTENTS

TOPIC PAGE NO

Certificate Acknowledgement Abstract Contents List Of Figures

1. Chapter 1 INTRODUCTION Company Profile 1 Achievements About Badarpur Thermal Power Station 2 Overall Power Generation

2. Chapter 2 PLANT LAYOUT AND WORKINGPRINCIPLE2.1. Plant Layout 32.2. Working of Power plant 4-5

3. Chapter 3 COAL(CHP),ASH HANDLINGPLANT AND ESP

3.1 What is CHP? 6

3.2 Main Equipment of CHP 6

3.3 Size of Grinding Ball 7

3.4 Methods of coal handing 8


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3.5 Ash Handling plant 9

3.6 ESP (Electrostatic precipitator) 10

4. Chapter 4 FURNACE

4.1 Boiler 12

4.2 Steam Generation 13

4.3 Classification of Boiler 13

4.4 Boiler Drum 14

4.5 Boiler furnace 15

4.6 Boiler Accessories 15

4.6.1 Economiser 154.6.2 Air Preheater 164.6.3 Super Heater 174.6.4 Reheater 17

5. Chapter5 TURBINE,ALTERNATOR,EXCITER AND FANS

5.1 Introduction 185.2 Impulse reaction turbine 195.3 Turbine overview 205.4 Parts of Alternator 215.5 Introduction of brush less excitation system 24


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5.6 Classification of fans 266. Chapter6WATER TREATMENT PLANT

6.1Introduction 276.2Cooling Arrangement 28

6.2.1 Dearator 296.2.2 Condenser 296.2.3 Cooling Tower 30

7. Chapter 7DIFFRENT TRANSFORMER & SWITCHYARD

7.1Introduction 317.2Main Parts of Transformer 327.3Station Transformer 357.4Unit Auxiliary transformer 367.5Unit station transformer 367.6Unit service transformer 367.7Bus scheme of 220 & 400 KV switchyard 37

7.8Parts of switchyard 38

7.9 SF-6 gas circuit breaker 39

7.10 Bus coupler section 40


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8. Chapter 8MAINTANANCE & PROTECTION JOB

8.1 Daily & monthly jobs 41-42

8.2Protection overview 43-44

CONCLUSION 54

BIBLIOGRAPHY 55


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Table ofFigures

FIGURES

PAGE No.

1.Plant layout 32.Wagon tripler 73.General arrangement of ESP 114.Impulse & reaction Turbine 205.Turbine overview 216.Steam Overview 217.Generator 228.Stator core 239.Rotor 24

10.Transformer 33

11.Line diagram of 220KV switchyard 40


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