Heya Allllll........brainly users✌️✌️
Write about construction and working of Transformer.
Don't copy and spam
Thanks♥️♥️
#SatyamRajput
Answers
Heyaa... Here is ur answer ☺️ What is a transformer? A transformer can be defined as a static device which helps in the transformation of electric power in one circuit to electric power of the same frequency in another circuit. The voltage can be raised or lowered in a circuit, but with a proportional increase or decrease in the current ratings. In this article we will be learning about Transformer basics and working principle Transformer – Working Principle The main principle of operation of a transformer is mutual inductance between two circuits which is linked by a common magnetic flux. A basic transformer consists of two coils that are electrically separate and inductive, but are magnetically linked through a path of reluctance. The working principle of the transformer can be understood from the figure below. Transformer Working Transformer Working As shown above the electrical transformer has primary and secondary windings. The core laminations are joined in the form of strips in between the strips you can see that there are some narrow gaps right through the cross-section of the core. These staggered joints are said to be ‘imbricated’. Both the coils have high mutual inductance. A mutual electro-motive force is induced in the transformer from the alternating flux that is set up in the laminated core, due to the coil that is connected to a source of alternating voltage. Most of the alternating flux developed by this coil is linked with the other coil and thus produces the mutual induced electro-motive force. The so produced electro-motive force can be explained with the help of Faraday’s laws of Electromagnetic Induction as e=M*dI/dt If the second coil circuit is closed, a current flows in it and thus electrical energy is transferred magnetically from the first to the second coil. The alternating current supply is given to the first coil and hence it can be called as the primary winding. The energy is drawn out from the second coil and thus can be called as the secondary winding. In short, a transformer carries the operations shown below: Transfer of electric power from one circuit to another. Transfer of electric power without any change in frequency. Transfer with the principle of electromagnetic induction. The two electrical circuits are linked by mutual induction. Transformer Construction For the simple construction of a transformer, you must need two coils having mutual inductance and a laminated steel core. The two coils are insulated from each other and from the steel core. The device will also need some suitable container for the assembled core and windings, a medium with which the core and its windings from its container can be insulated. In order to insulate and to bring out the terminals of the winding from the tank, apt bushings that are made from either porcelain or capacitor type must be used. In all transformers that are used commercially, the core is made out of transformer sheet steel laminations assembled to provide a continuous magnetic path with minimum of air-gap included. The steel should have high permeability and low hysteresis loss. For this to happen, the steel should be made of high silicon content and must also be heat treated. By effectively laminating the core, the eddy-current losses can be reduced. The lamination can be done with the help of a light coat of core plate varnish or lay an oxide layer on the surface. For a frequency of 50 Hertz, the thickness of the lamination varies from 0.35mm to 0.5mm for a frequency of 25 Hertz. Hope it helps to u ☺️☺️✨
An Electric Transformer is a electric machine which transforms the electrical power from one circuit to another without changing the frequency. It can increase or decrease the voltage with increase or decrease in current. The basic principle behind the working of a transformer is the phenomenon of mutual induction between two winding linked by common magnetic flux.
A transformer consists of two inductive coils, primary winding and secondary winding. The coils are electrically separated but magnetically linked. Magnetic flux is produced around the winding. The magnetic path for the flux is provided by the core and help to link with the secondary winding called flux. As the flux produces alternating,EMF gets induced in the secondary winding. And, when the secondary winding is closed circuit, then current flows through it, and the electrical power is transferred from one circuit to another.
#BE BRAINLY