Effects of Voltage and Frequency Variation on Transformers
The effects of voltage and frequency variation on the transformer is discussed in this article. Usually, power transformers are not … Continue Reading
Objective Questions on Alternator | Part 1
1. In an alternator, voltage drops occurs in (A) armature resistance only (B) armature resistance and leakage reactance (C) armature … Continue Reading
Characteristics of DC Shunt Generator
In this article, you will learn the characteristics of a dc shunt generator. A shunt generator is a type of … Continue Reading
Characteristics of Series Wound DC Generators
In this post, you will learn the characteristics of a series wound dc generator. This article is the continuation of … Continue Reading
Characteristics of Separately Excited DC Generators
In a separately excited dc generator, the field coils are energized from an independent source. The disadvantage of a separately … Continue Reading
DC Generator Characteristics
DC generator characteristics are the relations between excitation, terminal voltage and load exhibited graphically by means of curves. These characteristics of dc generators are very important in the … Continue Reading
Types of DC Generator – Series, Shunt and Compound
A DC generator requires MMF to establish flux in its magnetic circuit. The MMF necessary to establish flux in the … Continue Reading
Objective Questions on Single Phase Motors | Part 1
Part 1Part 2Part 3Part 4Part 5 1. A capacitor start single phase induction motor will usually have a power factor … Continue Reading
MCB (Miniature Circuit Breakers) – Types, Working and Trip Curves
MCB or Miniature Circuit Breaker is an electromechanical device that protects an electric circuit from an overcurrent. The overcurrent in an electrical circuit may … Continue Reading
SF6 Circuit Breakers – Construction, Types and Working
In an SF6 Circuit breaker, sulphur hexafluoride gas is used as the arc quenching medium. The sulphur hexafluoride gas (SF6) is … Continue Reading