Construction of Universal Motors
A universal motor is one of the single-phase motors that can be operated on either direct current or single-phase alternating … Continue Reading
Vacuum Circuit Breaker (VCB) – Principle, Construction and Working
What is VCB? VCB stands for Vacuum Circuit Breaker. In vacuum circuit breakers, the vacuum is used as the arc quenching … Continue Reading
Three Phase Induction Motor: Construction and Working Principle
The three phase induction motors are the most widely used electric motors in the industry. They work on the principle … Continue Reading
Construction of Underground Cables
An underground cable essentially consists of one or more conductors covered with suitable insulation and surrounded by a protecting cover. … Continue Reading
Star-Star (Y-Y) Connection of Three Phase Transformers | Benefits and Challenges
Learn about the advantages and disadvantages of star-star (Y-Y) transformer connections. Discover key considerations to optimize performance and ensure reliable power distribution.
Parallel Operation of Single Phase Transformers
By parallel operation of single-phase transformers, we mean two or more transformers are connected to the same supply bus bars on … Continue Reading
Objective Questions on Alternators | Part 2
16. A winding is having a number of slots is equal to the number of poles, then this winding is … Continue Reading
Advantages of Operating DC Generators in Parallel
In a DC power plant, power is usually supplied from several generators of small ratings connected in parallel instead of … Continue Reading
Effect of Electric Current on Human Body at 50 Hz
Each year in France, for example, 200 people die of electrocution and 500 suffer serious injuries, often permanent burns, respiratory … Continue Reading
Armature Reaction in Alternator
Armature reaction in alternator is the effect of armature flux on the field flux (i. e., rotor ampere-turns). Read this … Continue Reading