An Update in Transformer Technology

International Journal of Research and Scientific Innovation (IJRSI) | Volume V, Issue IX, September 2018 | ISSN 2321–2705

An Update in Transformer Technology

Indrima Upadhyay1, Abhishek Yadav2

1B. Tech Student, Electrical Engineering, College of Technology, Govind Ballabh Pant University of Agriculture and Technology, Pantnagar-263145, Uttarakhand, India
2Assistant Professor, Electrical Engineering, College of Technology, Govind Ballabh Pant University of Agriculture and Technology, Pantnagar-263145, Uttarakhand, India

Abstract: – A variety of types of electrical transformer are made for different purposes. Despite their design differences, the various types employ the same basic principle as discovered in 1831 by Michael Faraday, and share several key functional parts. TRANSFORMER- is one of oldest innovations in Electrical Engineering. It is an essential device in every electrical network circuitry. A transformer is a static electrical device that transfers electrical energy between two or more circuits through electromagnetic induction. It transforms power from one circuit to another without changing its frequency but may be in different voltage level. A transformer consists of two electrically isolated coils and operates on the basic principle as discovered in 1831 by Michael Faraday, Faraday’s principal of “mutual induction”, in which an EMF is induced in the transformers secondary coil by the magnetic flux generated by the voltages and currents flowing in the primary coil winding. The working principles of transformer are very simple. Mutual induction between two or more winding is responsible for transformation action in an electrical transformer.

Index Terms: Transformers, Faraday’s Laws, Manufacturing Process, Assembly

I. INTRODUCTION

Some of the popularly known transformers are as follows:

Dry Isolation Auto Transformer:

An isolation transformer is a special type of impedance matching transformer that is used to couple telephone equipment to electronic equipment. It is made with a primary winding that may or may not have a DC voltage impressed upon it.

Cast Resin Transformer:

Cast-resin power transformers encase the windings in epoxy resin. These transformers simplify installation since they are dry, without cooling oil, and so require no fire-proof vault for indoor installations.

K- Factor Transformer:

These specialized transformers feature conductors capable of carrying the harmonic currents of non-linear loads without exceeding the temperature rating of the insulation system.

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