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ANALYSIS AND BEHAVIOUR OF 5.6MW SYNCHRONOUSMOTOR FOR EXHAUST FAN DRIVE

A Project Report submitted To

JAWAHARLAL NEHRU TECHNOLOGICAL UNIVERSITY,HYDERABAD.Of

BACHELOR OF TECHNOLOGY IN

ELECTRICAL AND ELECTRONICS ENGINEERINGSubmitted By

K.SANTHOSH KUMAR REDDY 05G01A0223B.KISHORE 05G01A0204B.POORNA PAVAN KUMAR 05G01A0213

Under the esteemed guidanceOf

A. HEMASEKAR, M.TechAssociate. Professor.

SRI VENKATESA PERUMAL COLLEGE OF ENGG. & TECH., PUTTUR R.V.S. NAGAR, K.N. ROAD, PUTTUR-517583

(AFFILIATED to JNTU, HYDERABAD)ISO 9001:2000 CERTIFIED INSTITUTION

2008-2009

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CERTIFICATE

This is to certify that the project report entitled ANALYSIS ANDBEHAVIOUR OF 5.6MW SYNCHRONOUS MOTOR FOR EXHAUST FAN

DRIVE that is being submitted by K.SANTHOSH KUMAR REDDY,

B.KISHORE, B.POORNA PAVAN KUMAR in partial fulfillment of the

requirements for the award of the degree of Bachelor of Technology in

ELECTRICAL & ELECTRONICS ENGINEERING to the Jawaharlal Nehru

Technological University is a record of bonafide work carried out by him under our

guidance and supervision.

Under the esteemed guidance of

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ANALYSIS AND BEHAVIOUR 5.6MWSYNCHRONOUS MOTOR FOR EXHAUST

FAN DRIVEB.TECH

IN

ELECTRICAL AND ELECTRONICS ENGINEERING

Submitted by

K. SANTHOSH KUMAR REDDY 05G01A0223

B. KISHORE 05G01A0204

B. POORNA PAVAN KUMAR 05G01A0213

SRI VENKATESA PERUMAL COLLEGE OF ENGINEERING & TECHNOLOGY

Under the esteemed guidance of Mr..

SINTAR PLANTVISAKHAPATNAM STEEL PLANT

TO

RASTRIA ISPAT NIGAM LIMITEDVISAKHAPATNAM

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CERITIFICATE

This is to certify that project work entitled as ANALYSIS AND

BEHAVIOUR OF 5.6MW SYNCHRONOUS MOTOR FOR EXHAUST FAN DRIVE is

a bonafide record of work done by K.SANTHOSH KUMAR REDDY, B.KISHORE,

B.POORNA PAVAN KUMAR students of SRI VENKAESA PERUMAL COLLEGE OF

ENGINEERING & TECHNOLOGY in partial fulfillment of the requirement under the

guidance and supervision in VISAKHAPATNAM STEEL PLANT.

VisakhapatnamDate: Under the esteemed guidance of

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ACKNOWLEDGEMENT

We here by take this opportunity to express our sincere gratitude to thefollowing eminent personalities whose aid and advice helped us to complete this project

work successfully without any difficulty.

We express our profound gratitude to Mr. C.V. S. Prabhakar of

T&DC for according permission to pursue a project in the plant.

We are thankful to Mr.., Sinter Plant who has been with

us all through the project to spend his valuable time and to share his knowledge. We

would also like to thank Mr. who has specially taken interest.

As a token of our feeling, we would like to acknowledge our sincere

regards to our internal guide Mr. A. Hemasekar for allowing us to take up a project in

a working plant. We are also thankful to faculty member.

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ABSTRACT

Main purpose of the project report is to study and analysis the behavior of the

synchronous motors which are used in sinter plant. In sinter plant, the sinter mix is

converted into blocks (60mm) require for the blast furnace.

5.6 MW synchronous motors are used to maintain constant vaccum under the

sinter machine (furnace). These motors are operating at 5.6 MW and 11KV and also at

different range power factors

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INTRODUCTION TO VSP:

Visakhapatnam Steel Plant is a symbol of the technical corporation

between India and Russia. Some of the technological highlights of Visakhapatnam

Steel Plant are:

Visakhapatnam Steel Plant is the only shore based integrated steel plant

in our country. The decision to set up an integrated steel plant at Visakhapatnam by

the Government of India was taken in the Parliament on 17th April, 1970 and on 20th

January, 1971, the then Prime Minister, and Smt. Indira Gandhi laid the foundation

stone fulfilling the long cherished dream of the people of Andhra Pradesh. Theconstruction of VSP is taken up by steel authority of India (SAIL). With economic

and Technical Corporation of rest while Union of Soviet Socialist Republics.

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Visakhapatnam is a fast growing city and a railway junction station in

the Eastern Ghats and the coast of Bay of Bengal. It is the district headquarters.

Visakhapatnam is the home for several heavy industries in the Public Sector like

BHPV, Hindustan Zinc, Hindustan Shipyard, HPCL etc. It also houses establishmentslike NSTL, Eastern Naval Command, NAD, Visakhapatnam Port Trust, and Centre

for naval architecture etc. Visakhapatnam Steel Plant is located 15 Kms to the South

West of the Visakhapatnam Port. It lies between the Northern boundary of the

National Highway No. 5 from Madras to Kolkata and 7 Kms to the South West of

Howrah Madras railway line.

1.1. Coke Oven and Coke Chemicals Plants:

Coke oven plant consists of three coke oven batteries of 67 ovens each

with useful coke chamber volume of 41.6 cubic meters. Each battery is of 7 meters

height. It produces coke in the sizes of 25 to 70 mm which meet the coke requirement

of the Blast Furnaces. The annual capacity of the three batteries is 2.261 mt. During

production operation the CO gas (carbon monoxide) generated is used in the Coke

chemical plants to extract different Bi-products like Benzyl, Ammonium Sulphate,Tar products etc. After extracting all the valuable products the remaining gas is used

as energy source.

1.2 Blast Furnace (BF):

There two Blast Furnaces named "GODAVARI" and "KRISHNA", each

of 3200 cubic meter useful volume. Here hot metal is produced from the raw

materials like iron ore (Lump), sinter, coke and limestone etc. The annual capacity of

this facility is 3.4 mt. From molten hot metal pig iron / steel is produced.

1.3 Steel Melting Shop:

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There are three nos. of LD converters each of 133 cubic meters with a

capacity to produce 3 mts of liquid steel. The production capacity of a plant is its

capacity to produce liquid steel. VSP is a 3 mt plant. SMS also has six numbers of

four strands continuous casting machines to produce blooms. 2.82 mt of blooms can be cast annually. In this shop hot metal from BF is received in the mixer, kept for

temporary storage and transferred to converter where charging takes place in presence

of 99.5% pure oxygen. After Argon rinsing the molten steel is moved from here to the

six strand continuous casting machines. Blooms are formed which form the input

material for the mills. Blooms are also taken as input to small steel making industries.

1.4 Rolling Mills :

There are three rolling mills in VSP.

Light & Medium merchant mills: It includes the billet mill and bar mill. It

has a two strand rolling mill. It produces billets, bars and structures. The

annual capacity is 1.857 mts of billets and 7.1 mts of bars & structures.

Wire Rod mill: It is a high speed four strand continuous mill. The mill

is designed to produce wire rods in plain rounds and ribbed bars (5.5 to 12.7

mm diameter). The annual capacity of wire rods production is 0.8 mt.

Medium and Merchant mill: This mill produce squares 12 to 65mm,

flats 30 to 150mm, channels and angles etc. This mill has an annual

capacity of 0.85 mt of bars and structures.

1.5 Thermal Power Plant:

The production capacity is 240 MW from the four turbo generators each

of 60 Mw capacity. There are nos. of Turbo blowers each having a capacity of 6067

NM3 / min of cold blast. Power is also generated from BPTS (back pressure turbine

station) and GETS (gas expansion turbine station) in VSP in small quantities.

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Water needs of the plant are met from the Yeleswaram reservoir

specially constructed for the plant along with the 150 km long walled canal and the

Kanithi balancing reservoir in VSP towns. VSP has a large township with all modern

amenities like hospitals, schools, clubs, function halls, shopping centers, and parks for children, good roads and protected drinking water. The products manufactured by

VSP are pig iron, steel billets, wire rods.

SINTER PLANT

Sintering:Sinter is a hard & porous ferrous material obtained by agglomeration of

iron Ore fines, coke breeze, lime stone fines, metallurgical wastes viz. flue dust, mill

scale, Ld slag etc. sinter is a better feed material to Blast Furnace in comparison to ore

lumps and its usage in Blast furnace help in increasing productivity, decreasing the coke

rate & improving the quality of hot metal produced. Hot sinter discharged from

sintering machine is crushed to 25 mm- 50 mm size and cooled before dispatching to

Blast Furnaces .

The dust laden air from the machines are cleaned in scrubbers & electrostatic

precipitators to reduce the dust content to 100 mg/ level before allowing to escape into

the atmosphere and thus helping in maintain