Power Systems Which of the following decides the insulation level of 400 kV, EHV line? switching over voltage radio interference lighting voltage skin effect switching over voltage radio interference lighting voltage skin effect ANSWER DOWNLOAD EXAMIANS APP
Power Systems Switchgear equipment include switches. relays and CB. all of these. fuses. switches. relays and CB. all of these. fuses. ANSWER DOWNLOAD EXAMIANS APP
Power Systems A transmission line has a surge impedance of 400 Ω for a length of the line of 200 km. If the length of line is increased to 400 km, then its surge impedance is 400 Ω 0 Ω 800 Ω 200 Ω 400 Ω 0 Ω 800 Ω 200 Ω ANSWER DOWNLOAD EXAMIANS APP
Power Systems Mho relay is used for the protection of no length criterion. short length lines. medium length lines. long transmission lines. no length criterion. short length lines. medium length lines. long transmission lines. ANSWER DOWNLOAD EXAMIANS APP
Power Systems A 100 MVA alternator operating at full load at 50 Hz. H = 4 MWsec/MVA, Td = 0.5 sec. One of the transmission line is tripped. So that output of generator is reduced to 70 MW. Find the frequency deviation during this time? -0.56 0.56 0.92 -0.92 -0.56 0.56 0.92 -0.92 ANSWER DOWNLOAD EXAMIANS APP
Power Systems Which of the following statement is/are true regarding infinite line? It maintains the constant voltage It has infinite voltage It has infinite length both 2 and 3 It maintains the constant voltage It has infinite voltage It has infinite length both 2 and 3 ANSWER DOWNLOAD EXAMIANS APP
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