Stator Overheating Protection: Stator Overheating Protection - Generally stator overheating is caused by sustained overloads or by cooling system failure. Overheating because of short-circuited laminations is very localized, and it…
Classification of Relays: The protective relay may be defined as an electrical device interposed between the main circuit and the circuit breaker in such a manner that any abnormality in…
Electromagnetic Relay - Definition, Construction and Working Principle: Electromagnetic Relay - A relay, in the general sense of the word, is any apparatus which serves to actuate or control the…
Various Pilot Devices in Motor Control: Motor control devices may be classified as primary control devices and pilot control devices. Pilot devices control the primary control devices which in turn…
Protective Relays Interview Questions and Answers: 1. What is a protective relay ? Ans. Protective relay is an electrical device designed to initiate isolation of a part of an electrical…
Switchgear and Protection Interview Questions and Answers: 1. What is meant by short circuit ? Ans. When conductors of different phases come into contact with each other in a power…
Integrated Circuits Interview Questions and Answers: 1. What is an IC? Ans. An integrated circuit (IC) is one in which all active and passive components such as transistors, diodes, resistors, capacitors…
Electronic Instruments (Analog as well as Digital) Interview Questions and Answers: 1. Why ordinary voltmeter cannot be used in electronic circuits? Ans. A moving coil voltmeter draws a large current, hence…