Electric Portal

Electric Portal is about electrical concepts and other electrical machines like motor transformer,dol starter,star delta starter,auto transformer starter and much more

Types of Errors In Measurement Definition

Definition: The difference between the true value and the measured value of the quantity is known as an error in measurement. The error in measurement can not be eliminated completely but it can be minimized. there are various types of errors in measurement. Calibration Errors Types of Errors in Measurement Base on the nature of […]

Auto transformer Starter Working principle, diagram,advantages

Autotransformer  starter working pdf The squirrel cage induction motor started on full line voltage using  D O L starter as a starting method draws a very large starting current which can damage motor winding and also create a current surge on the power system. Hence another starting method is used to start three phase induction motor called an auto […]

Induction Heating Working Principle-Applications

Induction heating is a process that utilizes Faraday’s law of electromagnetic induction to generate heat. A magnetic field is created by bypassing an alternating current (AC) through a coil. This magnetic field then induces eddy currents within the conductive material, causing it to heat up. Induction Heating Working Principle Induction heating is a process wherein […]

What is Lightning Arrester-Working Principle Diagram

Grounding wire running over the tower or substation provides good protection to the electrical system against direct lightning stroke but they fail to provide protection against traveling high voltage or current waves that reach to terminal equipment. The lightning arrester or surge arresters provide protection against such waves. Lightning Arrester The above diagram shows the […]

Scott Connection of the Transformer-Application

The Scott connection of the transformer is a standard method of connecting two single-phase transformers to perform the three-phase to two-phase conversion and vice versa. Scott connection of transformer is also known as T – T connection. In Scott-T connection, two single-phase transformers are connected electrically not magnetically. One transformer is called the main transformer and […]

Transformer Working Principle -Construction,Advantages

The working principle of the transformer is based on Faraday’s law of electromagnetic induction. The three-phase power transformer is the main device of every power system. the main function of transformer is to step up or step down the voltage level. Considering the insulation part of the generator, the generation of electrical power is limited […]