The operating principle and arc forming phenomenon were explained in the previous article. Now it is very important to extinct … Continue Reading

DC motor fault zone analysis is a vital plan of any DC motor maintenance program. Several troubles may arise in a … Continue Reading

1. Overall efficiency of steam locomotive system is close to (A) 5 to 10%(B) 25 to 30%(C) 55 to 60%(D) … Continue Reading

The substation earthing system comprises of a grid (earth mat) formed by a horizontal buried conductors.  Read about design of substation … Continue Reading

The losses in a dc machine (generator or motor) may be divided into three classes viz  Copper losses  Iron or core … Continue Reading

Before reading Split Phase and Capacitor Start Induction Motors, please read the previous article, Why a Single Phase Induction Motor … Continue Reading

The power transformer and distribution transformer are an important part of an electrical power distribution network. They are classified based … Continue Reading

Single-phase motors are the most familiar of all-electric motors because they are extensively used in home appliances, shops, offices etc. … Continue Reading

A fluorescent lamp or a fluorescent tube is a low-pressure mercury-vapor gas-discharge lamp that uses fluorescence to produce visible light. … Continue Reading

What is an Electric Locomotive? An “Electric Locomotive” is a railway vehicle that can move along rails and push or … Continue Reading