Power Systems Differential relays does not used for which of the following faults? both 1 and 2 faults within a generator faults within a transformer through faults both 1 and 2 faults within a generator faults within a transformer through faults ANSWER DOWNLOAD EXAMIANS APP
Power Systems For a 500 Hz frequency excitation, a 100 km long power line will be modelled as any of the above long transmission line shunt capacitor medium transmission line any of the above long transmission line shunt capacitor medium transmission line ANSWER DOWNLOAD EXAMIANS APP
Power Systems To prevent maloperation of deferentially connected relay while energizing a transformer, the relay restraining coil is biased with 7th harmonic current. 5th harmonic current. 2nd harmonic current. 3rd harmonic current. 7th harmonic current. 5th harmonic current. 2nd harmonic current. 3rd harmonic current. ANSWER DOWNLOAD EXAMIANS APP
Power Systems Operator "a" rotates a vector clock wise direction either 1 or 2 nether 1 nor 2 anti clock wise direction clock wise direction either 1 or 2 nether 1 nor 2 anti clock wise direction ANSWER DOWNLOAD EXAMIANS APP
Power Systems A three phase, 33 kV oil circuit breaker is rated 1200 A, 2000 MVA, 3 secs. The symmetrical breaking current is 45 kA. 35 kA. 50 kA. 55 kA. 45 kA. 35 kA. 50 kA. 55 kA. ANSWER DOWNLOAD EXAMIANS APP
Power Systems What is the approximate efficiency of a normal thermal power station? 30-40% 20-25% 45-55% 60-70% 30-40% 20-25% 45-55% 60-70% ANSWER DOWNLOAD EXAMIANS APP
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