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ABSTRACT

India s largest power company, NTPC was set up in 1975 to accelerate power

development in India. NTPC is emerging as a diversified power major with presence in

the entire value chain of Power generation business. Apart from power generation, which

is the mainstay of the Company, NTPC has already ventured into consultancy, power

trading, ash utilization and coal mining. NTPC ranked 341st in the 2010, Forbes Global

2000 ra nking of the World s biggest companies. NTPC became a Maharatna company

in May, 2010, one of the only four companies to be awarded this status.

The total installed capacity of the company is 39,174 MW (including JVs) with 16 coal

based and 7 gas based stations, located across the country. In addition under JVs, 7

stations are coal based & another station uses naptha/LNG as fuel. The company has set a

target to have an installed power generating capacity of 1, 28,000 MW by the year 2032.

The capacity will have a diversified fuel mix comprising 56% coal, 16% Gas, 11%

Nuclear and 17% Renewable Energy Sources (RES) including hydro. By 2032, non-fossil

fuel based generation capacity shall make up nearly 28% of NTPCs portfolio.

NTPC has been operating its plants at high efficiency levels. Although the company has

17.75% Of the total national capacity, it contributes 27.40% of total power generationdue to its focus on high efficiency.

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PREFACE `

I underwent practical training at N.T.P.C. (National thermal power corporation) from 02-06-2014 to 28-06-2014. This is a part of total 27 days training program incorporated in

the curriculum of the Poornima College of Engineering, Jaipur for B.Tech. Course.As I

am a student of electrical engg. So the training at N.T.P.C. has been particularly

beneficial for me. I saw the various procedures, processes and equipment used in

production of electricity by thermal power which was studied in books and this has

helped me in better understanding of power generation and distribution concepts of

electrical power.

N.T.P.C. Badarpur is a very large plant and it is very difficult to acquire complete

knowledge about it in a short span. I have tried to get acquainted with overall plant

functioning and main concepts involved therein.

LOKESH BAJIA4th YEAR,EEPCE, JAIPUR

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4.4 NEW COAL HANDLING PLANT 45

4.5 SPECIFICATIONS OF MOTORS USED IN NCHP 48

4.6 MILLING SYSTE 49

5. ELECTRICAL MAINTENANCE DEPARTMENT II 50-

5.1 GENERATOR 50

5.2 TRANSFORMERS 54

5.3 SWITCH YARD 60

CONCULUSION 64

BIBLIOGRAPHY 65

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FIGURE INDEX

FIGURENO . FIGURENAME PAGENO .1.1 GROWTH RATE OF NTPC 2

1.2 NTPC CONTRIBUTION IN INDIA 2

1.3 STRATEGIES 3

1.4 JOURNEY OF NTPC 6

3.1 TERMAL POWER PLANT 123.2 COAL TO ELECTRICITY 123.3 BASIC POWER PLANT CYCLE 133.4 PARTS OF A POWER PLANT 143.5 PRIMARY AIR CYCLE 24

3.6 SECONDARY AIR CYCLE 25

3.7 ELECTRICITY CYCLE 25

3.8 CONDENSATE CYCLE 26

3.9 FEED WATER CYCLE 273.10 STEAM CYCLE 283.11 COAL CYCLE 293.12 FLUE GAS CYCLE 304.1 CONTACTORS 364.2 OVERLOAD RELAY 364.3 MINIMUM OIL CIRCUIT BREAKER 374.4 AIR CKT BREAKER 384.5 SF6 CIRCUIT BREAKER 394.6 COAL HANDLING PLANT 414.7 OLD COAL HANDLING PLANT 414.8 NEW COAL HNDLING PLANT 45

4.9 WAGON TIPPLER 46

4.10 WORM CONVEYOR 505.1 GENERATOR 515.2 TRANSFORMER 54

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TABLE INDEX

TOPIC NO. NAME PAGE

2.1 ABOUT BTPS 8 4.1 TYPES OF INSULSATION 324.1 TURBO GENERATOR 100MW 53

4.2 TURBO GENERATOR 210MW 53

5.1 GENERATOR TRANSFORMER (125MVA UNIT-I &UNIT-III)

58

5.2 GENERATOR TRANSFORMER (166 MVA UNIT-IV) 59