Bus Bar Protection Interview Questions and Answers: 1. Why use of single bus-bar arrangement is restricted to small and medium sized substations and small power stations ? Ans. The glaring…
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…
What is Thyristor? - Thyristor Family and its Applications Thyristor is the general name given to a family of semiconductor devices having four layers with a control mechanism, although this…
Apparatus Protection in Power System Articles: Bus Zone Protection : Bus Zone Protection includes, besides the bus itself the apparatus such as circuit breakers, disconnecting switches, Apparatus Protection in Power…
Protection Principles and Components Articles: Components of Protection System : Some of the more commonly used Components of Protection System are Relays Circuit Breakers Tripping and Other Auxiliary Supplies Current…
Design of Current Carrying Capacity Systems: The Current Carrying Capacity Systems of a circuit breaker consists not only of electrical conductors but also of mechanical devices like springs which do…
Basic Design of Arc Extinction Chamber: The considerations for design for the Arc Extinction chamber used in oil circuit breakers and air-blast circuit breakers would naturally be different. As far…