Power Systems Resistance switching in normally employed in air blast circuit breaker. bulk oil breakers. all breakers. minimum oil breakers. air blast circuit breaker. bulk oil breakers. all breakers. minimum oil breakers. ANSWER DOWNLOAD EXAMIANS APP
Power Systems The skin effect of conductor will increase when resistivity decrease diameter decrease frequency decrease All of these resistivity decrease diameter decrease frequency decrease All of these ANSWER DOWNLOAD EXAMIANS APP
Power Systems The angular moment of 10 MVA generator is 0.2. Find the new value of angular moment for 20 MVA base? 0.25 pu 0.1 pu 0.4 pu 0.2 pu 0.25 pu 0.1 pu 0.4 pu 0.2 pu ANSWER DOWNLOAD EXAMIANS APP
Power Systems If R = 84 ohm/Km, G = 10-6 mho/Km, H = 0.01 H/Km, C = 0.061 μ F/Km and frequency = 1000 Hz, then what is the value of propagation constant of the transmission line 0.018 per Km. 0.01 + j 0.02 per Km. 0.09 + j 0.018 per Km. None of them. 0.018 per Km. 0.01 + j 0.02 per Km. 0.09 + j 0.018 per Km. None of them. ANSWER DOWNLOAD EXAMIANS APP
Power Systems If a 500 MVA, 11 kV 3-phase generator at 50 Hz feeds through a transfer impedance of (0+j0.605) Ω/phase, an infinite voltage also at 11 kV, then the maximum steady state power transfer on the base of 500 MVA and 11 kV is 0.4 pu 0.5 pu 1 pu 0.8 pu 0.4 pu 0.5 pu 1 pu 0.8 pu ANSWER DOWNLOAD EXAMIANS APP
Power Systems Find the surge impedance of a line when inductance is 160 mH and capacitance is 1µF? 200 Ω 400 Ω 800 Ω 160 Ω 200 Ω 400 Ω 800 Ω 160 Ω ANSWER DOWNLOAD EXAMIANS APP
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