Power Systems In a 3-phase transmission line, each phase is supported by 3 insulated discs, maximum voltage of each disc is 20 kV. Find the operating voltage of the transmission line per phase if efficiency of string is 80.6%. 52.84 kV 20 kV 48.36 kV 83.76 kV 52.84 kV 20 kV 48.36 kV 83.76 kV ANSWER DOWNLOAD EXAMIANS APP
Power Systems Mho relays are used for the protection of which of the following lines? short transmission lines only None of these long transmission lines only medium transmission lines only short transmission lines only None of these long transmission lines only medium transmission lines only ANSWER DOWNLOAD EXAMIANS APP
Power Systems The most suitable circuit breaker for short line fault without switching resistor is air blast circuit breaker. oil circuit breaker. SF6 breaker. none of these. air blast circuit breaker. oil circuit breaker. SF6 breaker. none of these. ANSWER DOWNLOAD EXAMIANS APP
Power Systems One fission of U235 releases energy of 435 MeV. 525 MeV. 335 MeV. 200 MeV. 435 MeV. 525 MeV. 335 MeV. 200 MeV. ANSWER DOWNLOAD EXAMIANS APP
Power Systems A 3-phase transmission line operating at Vs = 400 kV and has ABCD parameters A= D = 0.8∠0°, B = 100∠90° Ω, C = 0.5*10-6∠90° ℧. Find the no load receiving end voltage? 400 kV 500 kV 600 kV 320 kv 400 kV 500 kV 600 kV 320 kv ANSWER DOWNLOAD EXAMIANS APP
Power Systems Which of the following relays are used in protection of medium transmission lines? any of the above Admittance relays Mho relays Impedance relays any of the above Admittance relays Mho relays Impedance relays ANSWER DOWNLOAD EXAMIANS APP
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