DC Motors works on the principle that they convert electrical energy (from a battery or voltage source) into mechanical energy … Read moreHow to Make a DC Motor at Home?

Simply stated, the Power Factor is the percentage of Apparent Power that does real work. To understand power factor in … Read moreWhat is Power Factor, Its Causes and How to Improve it?

Protective relaying is necessary with almost every electrical plant, and no part of the power system is left unprotected. The … Read moreBasics of Protective Relaying in Power System

No electronics can run without power, to be precise a low voltage DC power, and a power supply unit is … Read moreDesign a Power Supply Circuit – Simple to Complex

In oil circuit breakers, some insulating oil (e.g., transformer oil) is used as an arc quenching medium.  Working Principle of … Read moreOil Circuit Breakers – Types, Working and Construction

A simple analogy is the best way to understand power factor. Please read what is power factor before reading this … Read moreUnderstanding Power Factor Using a Horse and a Railcar

Primary and Back-up Protection Primary protection (Main protection) is the essential protection provided for protecting an equivalent/machine or a part … Read morePrimary and Back-up Protection in Power System

The Stroboscopic Effect in Fluorescent lamp is a phenomenon which causes running or moving equipment to appear stationary or appear … Read moreStroboscopic Effect in Fluorescent Lamps

1. What is a Circuit Breaker? Circuit Breaker is a mechanical device designed to close or open contact members, thus … Read moreCircuit Breakers – Interview Questions with Answers