MAJOR REPORT ON TRANSFORMERS
AN INDUSTRIAL INTERNSHIP REPORT
Submitted by
KALE RAJ KAILAS
(15BEE1051)
In partial fulfillment for the award of the degree of
BACHELOR OF TECHNOLOGY
In
ELECTRICAL AND ELECTRONICS ENGINEERING
8 th SEPTEMBER, 2017
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School of Electrical Engineering
DECLARATION BY THE CANDIDATE
I hereby declare that the Industrial Internship Report entitled “MAJOR
REPORT ON TRANSFORMER” submitted by me to VIT University;
Chennai in partial fulfillment of the requirement for the award of the degree
of Bachelor of Technology in Electrical and Electronics Engineering is a
record of bonafide industrial training undertaken by me under the supervision
of Mr. SAMARENDRA KUMAR. I further declare that the work reported
in this report has not been submitted and will not be submitted, either in part
or in full, for the award of any other degree or diploma in this institute or any
other institute or university.
Chennai Signature of the Candidate
Date: 08-09-2017
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School of Electrical Engineering
BONAFIDE CERTIFICATE
This is to certify that the Industrial Internship Report entitled “MAJOR
REPORT ON TRANSFORMER” submitted by KALE RAJ KAILAS
(15BEE1051) to VIT University, Chennai in partial fulfillment of the
requirement for the award of the degree of Bachelor of Technology in
Electrical and Electronics Engineering is a record of bonafide internship
undertaken by him fulfills the requirements as per the regulations of this
institute and in my opinion meets the necessary standards for submission.
The contents of this report have not been submitted and will not be submitted
either in part or in full, for the award of any other degree or diploma in this
institute or any other institute or university.
Programme Chair (B.Tech EEE)
Date:
Examiner (s) Signature
1. 2.
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ACKNOWLEDGEMENT
I take this opportunity to express my sincere gratitude to the people who have been helpful
in the successful completion of my industrial training in this project. I would like to show
my greatest appreciation to the highly esteemed and devoted technical staff, supervisors
of the Bharat heavy electricals limited, Bhopal. I am highly indebted to them for their
tremendous support and help during the completion of my training in this project.
I am highly thankful to B.H.E.L engineers and technical staff specially MR. Samarendra
Kumar (Sr. Engg.) HCM Division, for providing me vital and valuable information about
the different facets of an industrial system. I express my gratitude to HUMAN
RESOURCE AND DEVLOPMENT CENTRE department for giving me a chance to feel
industrial environment and its working in B.H.E.L and I am thankful to all engineers and
staff members for giving their precious time and help me in understanding various
theoretical and practical aspects of my project under whose supervision I accomplish my
project
Kale Raj Kailas
TABLE OF CONTENTS
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Chapter Title Page
No.
No.
Declaration I
Certificate ii
Acknowledgement iii
Table of Contents iv
List of Tables v
List of Figures vi
Abstract vii
1 About BHEL 1
1.1 BHEL Products 2
1.1.1 Thermal equipments 2
1.1.2 Hydro power equipments 2
1.1.3 Industrial equipments 2
1.1.4 Heat exchangers 3
1.1.5 Switch gears 3
1.1.6 Transformers 3
1.1.7 Insulators 3
1.1.8 Capacitors 4
1.2 Manufacturing unit of BHEL 5
2 Introduction 6
3 Basic principle 7
3.1 Ideal power equation 8
3.2 Physics of Magnetization EMF 8
4 Leakage Flux 9
4.1 Effect of frequency 10
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5 Energy losses 12
5.1 Winding Resistance 12
5.2 Hysteresis loss 13
5.3 Eddy current loss 13
5.4 Stray loss 13
6 Transformer oil 14
6.1 Explanation 14
7 Transformer manufacture at BHEL Bhopal 15
7.1 Core classification 16
7.2 Winding and insulation 17
7.3 Voltage regulation & Tap-changer 17
7.4 Types of Bridging 17
7.5 Emf in Power transformer 18
7.6 Selection of tap changer 18
7.7 Components of tap changer 18
7.8 Testing & oil quality 19
7.9 Kinematic viscosity 19
7.10 On site testing 20
7.11 Test performed in UHV Lab 20
7.12 Rated voltage & HV Test 21
7.13 Type test 21
8 Conclusion 22
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LIST OF FIGURES
Fig.No. Title PageNo.
3.1 Core type Transformer 7
3.2 Ideal power equation 8
4.1 Leakage flux 11
7.1 Substation 15
7.2 3-phase 3-limbed Core 16
7.3 3-phase 5-limbed Core 16
7.4 Tap changer 17
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ABSTRACT
Power generation, transmission and distribution are one of the most
important sectors in North India. In this growing age of technology, the extent
of correctness is a major point. This correctness and pin pointed guess is
achieved only through hard work, experience and well guided practice. As a
new comer to this field we required to have professional knowledge that will
help in improving our skills and efficiency. Having a training work on the
same topic increased our interest and made the work simpler.
The most vital part is the presence of a guide whose knowledge and practical
experience built our self-confidence and helping hand by which we finished
this project successfully. So we all are indebted to MR. SAMARENDRA
KUMAR (Sr. Engg.) HCM Division acted as burning candle and enlightens
us about this training.
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