Skip to the content

onlineexamguide

  • Home
  • Courses
  • Engg. Interview
    • Placement Papers
    • Electrical Engineering
    • Mechanical Engineering
    • Automobile Engineering
    • Civil Engineering
    • Computer Science Engineering
    • Chemical Engineering
  • Online Exam
    • NTA UGC NET Exam
    • SSC Examination quiz
    • TET Examination Quiz
    • Banking Exam
    • Aptitude Tests
    • Computer Knowledge Tests
    • Logical Reasoning Tests
    • English Language Tests
    • Staff Nurse Exams
    • General Knowledge Tests
    • Networking Tests
  • Ghatna Chakra
  • Register
    • Instructor Registration
    • Student Registration
  • User Login
  • Home
  • Courses
  • Engg. Interview
    • Placement Papers
    • Electrical Engineering
    • Mechanical Engineering
    • Automobile Engineering
    • Civil Engineering
    • Computer Science Engineering
    • Chemical Engineering
  • Online Exam
    • NTA UGC NET Exam
    • SSC Examination quiz
    • TET Examination Quiz
    • Banking Exam
    • Aptitude Tests
    • Computer Knowledge Tests
    • Logical Reasoning Tests
    • English Language Tests
    • Staff Nurse Exams
    • General Knowledge Tests
    • Networking Tests
  • Ghatna Chakra
  • Register
    • Instructor Registration
    • Student Registration
  • User Login

What is Transformer

What is Transformer

Table of Contents

  • Transformer

What is Transformer

Transformer

An alternating voltage can be raised or lowered as per requirements in the different stages of electrical network by using static device called as transformer.

The transformer works on the principle of mutual induction. It transfers an electric energy from one circuit to other when there is no electrical connection between the two circuits.

The transformer is a static device in which electric power is transformed from one alternating current circuit to another with desired change in voltage and current, without any change in frequency.

The principle of mutual induction states that when two coils are inductively coupled and if the current in one coil changed uniformly then an e.m.f gets induced in the other coil. This e.m.f can drive a current, when a closed path is provided to it. The transformer works on the same principle. In its elementary form, it consists of two inductive coils which are electrically separated but linked through a common magnetic circuit. The two coils have high mutual inductance.

The basic transformer is shown in fig.

One of the two coils is connected to a source of alternating voltage. This coil in which electrical energy is fed with the help of source called primary winding (P). The other winding is connected to the load. The electrical energy transformed to this winding is drawn out to the load. This winding is called secondary winding (S). The primary winding has N1 number of turns while the secondary winding has N2 number of turns. Symbolically the transformer is indicated as shown in fig.

When the primary winding is exited by an alternating voltage, it circulates an alternating current. This current produces an alternating magnetic core as shown dotted in fig. thus an alternating flux links with secondary winding. As the

flux is alternating, according to faradays law of electromagnetic induction, mutually induced e.m.f gets developed in the secondary winding. If now the load is connected to the secondary winding, this e.m.f drives a current through it.

Thus though there is no electrical contact between the two windings, an electrical energy gets transferred from primary to the secondary.

Write a comment Cancel reply

You must be logged in to post a comment.

Recent Posts

  • Open circuit characteristics (O.C.C.)
  • Synchronous Generator – Construction & Working Principle
  • Relationship between frequency and speed
  • Alternator and Synchronous Generator EMF Equation
  • Fundamental Principles of A.C. Machines
  • Braking of DC Motor
  • Hopkinson Test
  • Swinburne Test of DC Machine
  • Three Point Starter, Construction and Working Principle
  • Methods for Starting a DC Motor
  • DC Motor Characteristics
  • Types of DC Motor
  • Working of DC Motor
  • DC Motor Principle of operation
  • Commutation and Interpole & DC Generator Characteristics

onlineexamguide

onlineexamguide.com is the ultimate guide that will keep you updated about almost every Exam & Interviews . We aim to provide our readers with an informative details that have been occurring in Examination . Here at onlineexamguide.com , we focus on delivering our readers with the latest exam Pattern Mock test

We Provide Free online test to practice for Competitive exams , Online Exam, Entrance and Interview. Learn and Practice online test for Free and Prepare for your exam online with us

Quick links

  • About us
  • Privacy Policy
  • Instructor Registration
  • Student Registration
  • Java Programming Tests
  • C programming Tests
  • C++ programming Tests
  • Aptitude Tests

Follow us

Free Online Mock Test

  • UPTET PRIMARY Online Test Series
  • Super TET Mock Test in Hindi 2022
  • CTET Mock Test 2022 Paper 1
  • SSC CHSL Online Mock Test
  • SSC MTS Mock Test 2022
  • SSC CGL Mock Test
  • SSC GD Mock Test
  • ccc online test

Search

Learn and Earn

Register as Instructor - Create and sell online courses and coaching services with the best online platform onlineexamguide.com . Build a course, build a brand, earn money

Contact us

For any queries

Email us on - admin@onlineexamguide.com

We will response fast as much as we can
Copyright © 2022 onlineexamguide.com - All Rights Reserved.
error: Content is protected !!

Insert/edit link

Enter the destination URL

Or link to existing content

    No search term specified. Showing recent items. Search or use up and down arrow keys to select an item.