Power Systems Oxide film arrestor has which of the following properties? It is expensive. Both A and B. Installed at points of transmission line where daily visit is difficult. Does not require daily charging. It is expensive. Both A and B. Installed at points of transmission line where daily visit is difficult. Does not require daily charging. ANSWER DOWNLOAD EXAMIANS APP
Power Systems Two insulator discs of identical capacitance value C make up a string for a 22 kV, 50 Hz, single phase overhead line insulation system. If pin to earth capacitance is also C, then find the string efficiency? 90% 86%% 75% 50% 90% 86%% 75% 50% ANSWER DOWNLOAD EXAMIANS APP
Power Systems Gross head of an hydroelectric power station is the height of water level in the river where the tail race is provided. the height of water level in the river where the storage is provided. all of above. the difference of water level between the level in storage and tail race. the height of water level in the river where the tail race is provided. the height of water level in the river where the storage is provided. all of above. the difference of water level between the level in storage and tail race. ANSWER DOWNLOAD EXAMIANS APP
Power Systems Switchgear equipment include relays and CB. fuses. switches. all of these. relays and CB. fuses. switches. all of these. ANSWER DOWNLOAD EXAMIANS APP
Power Systems A power system consists of 300 buses out of which 20 buses are generator buses, 25 buses are the ones with reactive power support buses and 15 buses are ones with fixed shunt capacitors. All the other buses are load buses. It is proposed to perform a load flow analysis for the system using Newton-Raphson Jacobian matrix is 554×554 555×555 553×553 540×540 554×554 555×555 553×553 540×540 ANSWER DOWNLOAD EXAMIANS APP
Power Systems The SWR on a lossless transmission line of the characteristic impedance 100 ohm is 3. The line is the terminated by A resistance of j100/3 ohm. A resistance of 100 ohm. A resistance of j300 ohm. A resistance of 100/3 ohm. A resistance of j100/3 ohm. A resistance of 100 ohm. A resistance of j300 ohm. A resistance of 100/3 ohm. ANSWER DOWNLOAD EXAMIANS APP
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