General overview of Electric Transformer.

1. to may presentation
4/4/20141

2. TRANSFORMER
4/4/2014
Presentation on
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3. Prepared for
4/4/2014
Mohammad Zahidul Islam
M.B.A-H.R.M (Anglia Ruskin, U.K)
Course Instructor
Career Planning and Development –II
(ART 203)
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4. Prepared by
4/4/2014
Zobayer Hossain
Prog: BSEEE
ID#11105018
Sec: E/4
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5. Introduction
Significance
Scope and Limitations
Background
Source and Methods
Vision
Mission
Strategy
Organization overview
Basic function of Transformer
Major Components of a transformer
Important Raw Materials
Basic principles
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Sequence
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6. Types
Transformer Efficiency
Manufacturing Process
Testing
Installation
Summary
Recommendation
Question and Answer
Conclusion
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Sequence continued
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7. Introduction
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Transformer is a static
piece of apparatus by
means of which power
in one circuit is
transformed into
electric power of the
same frequency in
another circuit.
Fig. Transformer

8. Major part of our daily life
Voltage fluctuations.
Various mechanisms
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Significance
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9. This paper includes only the implementation of power
Transformers. It should cover the performance
indication of transmission line in the generating
station. It also covers the controlling system in case of
improving the performance.
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Scope and Limitations
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10. In the early days of commercial use of electric power
Transformer, Transformer of electric power at the same voltage
as used by lighting and mechanical loads restricted the distance
between generating plant and consumers. Different classes of
loads – for example, lighting, fixed motors and traction
(railway) systems – required different voltages, and so used
different Transformer. Due to this specialization of Transformer
was so inefficient that generators needed to be close by their
loads.
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Background
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11. Primary Data are collected from the Installation Manuals.
Secondary data are being collected from the Journal and
website.
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Source and Methods
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12. To become the country leader for Power Solution and establish
ourselves as the largest and most lucrative service provider in
our country.
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Vision
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13. To provide the high quality power and to develop the
economical condition of the country as best.
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Mission
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14. Strategic aim is to strengthen the leading position in our
markets, and to ensure continued growth. That on our
capability to integrate and deliver solutions from broad
equipment and service portfolio which meet the specific
needs of the customer segments globally. The priority is to
offer the best efficiency, reliability and value available
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Strategy

15. Energypac is one of the leading power engineering companies
in Bangladesh. Continual research and development, state of the
art production facility, quality products, competent services, and
countrywide operations have made it warmly acceptable to the
customers. Energypac was incorporated in 1982 as a private
limited business enterprise. It is powered by 1200 skilled
manpower of which 150 are graduated engineers.
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Organization overview

16. Basic function of Transformer
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It consists of two inductive coils
which are electrically separated but
magnetically linked. The two coils
possess high mutual inductance.
The first coil, in which electric
energy is fed from the ac supply
mains, is called the primary
winding and the other from which
energy is drawn out, is called
secondary winding.

17. Major Components of a transformer
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Core
HT coil
LT coil
Main Tank
Buchholz relay
Bushing
Conservator Tank
Tap Changer
Radiators
Breathers

18. Copper
Aluminum
Silicon Steel
Transformer Oil
Mild Steel Sheet
Stainless Steel Sheet
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Important Raw Materials
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19. The transformer is based on two principles:
First that an electric current can produce a magnetic field
(electromagnetism)
Second that a changing magnetic field within a coil of wire
induces a voltage across the ends of the coil (electromagnetic
induction).
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Basic principles
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20. Autotransformer
Poly phase transformers
Leakage transformers
Audio transformers
Instrument transformers
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Types
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21. No Load Loss
Hysteresis loss
Eddy current loss
Load (copper or winding) loss
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Transformer Efficiency
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22. Select production target.
Collect raw material.
Provide job order and material control slip.
Monitoring.
Prevent tender document.
Estimate
To draw sketch of the part of required product
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Manufacturing Process
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23. 4/4/2014
Flow Chart of Manufacturing Process
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24. Di-electric strength test of transformer oil.
Measurement of Insulation Resistance.
High Voltage Test.
Induced Over Voltage Test.
Ratio Test.
Vector Group Test.
Measurement of No Load Loss and Excitation Current.
Measurement of Load Loss and Impedance Voltage.
Measurement of Winding Resistance.
Temperature Rise Test.
Testing of Transformer Oil
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Testing
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25. Location and Mounting
Installation of Detachable Radiator
Filling Installed Radiator with Fluid
Installations of High-Voltage Bushing
Installation of Surge Arrester
Pre-energization Tests and Checklist
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Installation
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26. For manufacturing and testing of Transformer, there are
several methods as discussed to improve the performance
In that case the manufacturing and testing of Transformer
developed depends upon the system includes losses,
limitations and the controlling system
Installation and at the same time improves the efficiency to
obtain the greater performance of Transformer
4/4/2014
Summary
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27. In this paper the methods developed for the redacting
limitations which are very applicable. Here the transformer
losses has personated some methods which are much easier and
more practical than before. The paper should give the clear idea
about failure protection and the process is very simple and has
the ability to protect Transformer to maintain the high
efficiency.
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Recommendation
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28. Questions
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29. Transformer is very trustworthy device and can provide
service for a long time if maintain and serviced
commonly. Before doing my report I had speculative
knowledge but now I am familiar with the Transformer
briefly. We can use the technology and save the Earth
from different pollutions by generating Power in other
technology.
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Conclusion
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30. 4/4/201430