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Electrical Engineering Interview Questions

January 14, 2018 by admin

Electrical Engineering Interview Questions on Switchgear and Protections – 1


1. What is the name of relay used for anti motor protection scheme?
Answer: Reverse Power Relay.


2. In which type of breaker resistance switching is employed?
Answer: Air Blast Circuit Breaker.


3. What is the name of relay used for feeder protection in overhead system?
Answer: Translay Relay.


4. What is the purpose of using series capacitor in a transmission line?
Answer: The purpose of using series capacitor in transmission line is to compensate voltage drop.


5. Which type of circuit breaker is designed for the high operating voltage?
Answer: SF6 Circuit Breaker and Air Blast Circuit Breaker.


6. Which device is used to protect the power system against travelling wave?
Answer: Surge Diverter.


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