Power Systems Which of the following relays is/are unit protection relays? over current relays Differential relays Buccholz relays both 1 and 2 over current relays Differential relays Buccholz relays both 1 and 2 ANSWER DOWNLOAD EXAMIANS APP
Power Systems Plant capacity factor value is less than 1 0 greater than 1 1 less than 1 0 greater than 1 1 ANSWER DOWNLOAD EXAMIANS APP
Power Systems Four identical alternators each are rated for 20 MVA, 11 KV having a subtransient reactance of 16% are working in parallel. The short circuit level at the busbar is 125 MVA 400 MVA 100 MVA 500 MVA 125 MVA 400 MVA 100 MVA 500 MVA ANSWER DOWNLOAD EXAMIANS APP
Power Systems If sag in an overhead line increase, tension in the line None of these remains same increase decrease None of these remains same increase decrease ANSWER DOWNLOAD EXAMIANS APP
Power Systems The rate of rise of re-striking voltage is dependent upon resistance of the system only inductance of the system only both 1 and 2 capacitance of the system only resistance of the system only inductance of the system only both 1 and 2 capacitance of the system only ANSWER DOWNLOAD EXAMIANS APP
Power Systems Which of the following is/are the advantages of synchronous phase modifier over the shunt compensation? single unit can be used as both capacitance and inductor by adjusting the excitation both 1 and 2 initial cost is low smooth voltage regulation is possible by controlling excitation single unit can be used as both capacitance and inductor by adjusting the excitation both 1 and 2 initial cost is low smooth voltage regulation is possible by controlling excitation ANSWER DOWNLOAD EXAMIANS APP
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