Air Blast Circuit Breaker – Construction, Working and Types
Air blast circuit breaker employs a high-pressure air blast as an arc quenching medium. The construction and working of different … Continue Reading
Different Types of Circuit Breakers
A circuit breaker is a switching device which can be operated manually as well as automatically for controlling and protection … Continue Reading
Methods of Arc Extinction in Circuit Breaker
The selection of an appropriate arc extinction method depends on several factors, including the voltage level of the circuit, the … Continue Reading
4 Major Troubles in a DC Motor with Reasons
DC motor fault zone analysis is a vital plan of any DC motor maintenance program. Several troubles may arise in a … Continue Reading
Objective Questions on Electric Traction – 1
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
Substation Earthing System ( Grounding System ) – Earthing Mat
The substation earthing system comprises of a grid (earth mat) formed by a horizontal buried conductors. Read about design of substation … Continue Reading
Losses in DC Machine ( DC Generator and Motor )
The losses in a DC machine (generator or motor) may be divided into three classes viz Copper losses Iron or … Continue Reading
Split Phase and Capacitor Start Induction Motors
Before reading Split Phase and Capacitor Start Induction Motors, please read the previous article, Why a Single Phase Induction Motor … Continue Reading
Power Transformer and Distribution Transformer
The power transformer and distribution transformer are an important part of an electrical power distribution network. They are classified based … Continue Reading
Single Phase Induction Motor – Working Principle and Construction
Single-phase motors are the most familiar of all-electric motors because they are extensively used in home appliances, shops, offices etc. … Continue Reading