Oil Circuit Breakers – Types, Working and Construction
In oil circuit breakers, some insulating oil (e.g., transformer oil) is used as an arc quenching medium. Working Principle of … Continue Reading
Power System
Primary and Back-up Protection in Power System
Primary and Back-up Protection Primary protection (Main protection) is the essential protection provided for protecting an equivalent/machine or a part … Continue Reading
Stroboscopic Effect in Fluorescent Lamps
The Stroboscopic Effect in Fluorescent lamp is a phenomenon which causes running or moving equipment to appear stationary or appear … Continue Reading
Circuit Breakers – Interview Questions with Answers
1. What is a Circuit Breaker? Circuit Breaker is a mechanical device designed to close or open contact members, thus … Continue Reading
Load Forecasting – Purpose, Classification and Procedure
What is Load Forecasting? Electrical energy cannot currently be stored in large amounts. It has to be generated whenever there … Continue Reading
Load Curve in a Power Plant – Daily, Monthly and Annual
A load curve is a plot of the load demand (on the y-axis) versus the time (on the x-axis) in the chronological … Continue Reading
Types of Electrical Relays
We have already discussed the working of electrical relays. Now we are going through different types of electrical relays. There … Continue Reading
Short Circuit – Causes and Effects
What is Short Circuit? Whenever a fault occurs on a network such that a large current flows in one or … Continue Reading
Low Voltage Circuit Breakers – Design and Construction Basics
In this article, we are going to study the basics of low voltage circuit breaker design and construction. The operation … Continue Reading
Sag in Overhead Transmission Lines
The difference in level between points of supports and the lowest point on the conductor is called sag in overhead transmission lines. … Continue Reading