Power Systems The arc voltage produced in an AC circuit breaker is always in phase opposition with the arc current. in phase with the arc current. leading the arc current by 90°. lagging the arc current by 90°. in phase opposition with the arc current. in phase with the arc current. leading the arc current by 90°. lagging the arc current by 90°. 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 0.5 pu 0.4 pu 0.8 pu 1 pu 0.5 pu 0.4 pu 0.8 pu 1 pu ANSWER DOWNLOAD EXAMIANS APP
Power Systems The per unit value of a 2 ohm resistor at 100 MVA and 10 kV base voltage is 0.2 pu 0.5 pu 4 pu 2 pu 0.2 pu 0.5 pu 4 pu 2 pu ANSWER DOWNLOAD EXAMIANS APP
Power Systems The rate of rise of restricting voltage depends upon the Inductance and capacitance of the system. Capacitance of the system. Type of CB. Inductance of the system. Inductance and capacitance of the system. Capacitance of the system. Type of CB. Inductance of the system. ANSWER DOWNLOAD EXAMIANS APP
Power Systems A string insulator has 4 units. The voltage across bottom most unit is 10 kV and its efficiency is 90%. Find the total operating phase voltage? 36 kV 32 kV 45 kV 40 kV 36 kV 32 kV 45 kV 40 kV ANSWER DOWNLOAD EXAMIANS APP
Power Systems A transmission line has a surge impedance of 400 Ω is connected with the cable having surge impedance of 40 Ω, a surge magnitude of 100 kV is travelling from the transmission line towards the cable. Find the incident current? 100 A 200 A 250 A 2500 A 100 A 200 A 250 A 2500 A ANSWER DOWNLOAD EXAMIANS APP
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