Switch Gear For which of the following protection from negative sequence currents is provided ? Transformers Motors Transmission line Generators Transformers Motors Transmission line Generators ANSWER DOWNLOAD EXAMIANS APP
Switch Gear Breaking capacity of a circuit breaker is usually expressed in terms of MVA volts Mw amperes MVA volts Mw amperes ANSWER DOWNLOAD EXAMIANS APP
Switch Gear Which of the following CB's is generally used in railways applications ? air break circuit breaker bulk oil circuit breaker sf 6 circuit breaker low oil circuit breaker air break circuit breaker bulk oil circuit breaker sf 6 circuit breaker low oil circuit breaker ANSWER DOWNLOAD EXAMIANS APP
Switch Gear A fuse in a motor circuit provides protection against open circuit, short-circuit and overload None of these short-circuit and overload overload open circuit, short-circuit and overload None of these short-circuit and overload overload ANSWER DOWNLOAD EXAMIANS APP
Switch Gear The contacts of high voltage switches used in power system are submerged in oil. The main purpose of the oil is to All of these lubricate the contacts None of these insulate the contacts from switch body extinguish the arc All of these lubricate the contacts None of these insulate the contacts from switch body extinguish the arc ANSWER DOWNLOAD EXAMIANS APP
Switch Gear An isolator is installed always independent of the position of circuit breaker to operate the relay of circuit breaker generally on both sides of a circuit breaker as a substitute for circuit breaker always independent of the position of circuit breaker to operate the relay of circuit breaker generally on both sides of a circuit breaker as a substitute for circuit breaker ANSWER DOWNLOAD EXAMIANS APP
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