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
Electrical Machines
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
Why Three Phase System Preferred Over Higher Phases?
A three-phase system is universally employed for a generation, transmission, and distribution of electric power. There are several reasons for … Continue Reading
Capacitor Voltage Transformer (CVT or CCVT) – Construction & Working
Capacitor Voltage Transformer (CVT) or Capacitor Coupled Voltage Transformer (CCVT) is a switchgear device used to convert high transmission class … Continue Reading
Steam Power Stations – Arrangement and Working
Steam power stations convert the heat energy of coal combustion into electrical energy. A steam power station basically works on the … Continue Reading
AC Single Phase Motors
Single phase motors are the most familiar of all electric motors because they are extensively used in home appliances, shops, … Continue Reading
Production of Rotating Magnetic Field
The production of Rotating magnetic field in 3 phase supply is very interesting. When a 3-phase winding is energized from … Continue Reading
Objective Questions on Alternators | Part 4
46. The windings for an alternator are I. 36 slots, four poles, span 1 to 8 II. 72 slots, six … Continue Reading
Objective Questions on Alternators | Part 3
Part 1Part 2Part 3Part 4Part 5 31. In order to reduce the harmonics in the emf generated in an alternator … Continue Reading
Objective Questions on Single Phase Motors | Part 3
31. The type of starting relay used on single phase hermetic motor is (A) hot wire relay (B) timing relay … Continue Reading