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 100 MVA 500 MVA 400 MVA 125 MVA 100 MVA 500 MVA 400 MVA 125 MVA ANSWER DOWNLOAD EXAMIANS APP
Power Systems Electrostatic precipitators in thermal power plants are used for control flow rate All of these removal of ash from flue gas remove moisture from the cole control flow rate All of these removal of ash from flue gas remove moisture from the cole ANSWER DOWNLOAD EXAMIANS APP
Power Systems Differential relays does not used for which of the following faults? both 1 and 2 through faults faults within a transformer faults within a generator both 1 and 2 through faults faults within a transformer faults within a generator ANSWER DOWNLOAD EXAMIANS APP
Power Systems An alternator having an induced emf of 1.6 pu is connected to an infinite bus of 1 pu. If the bus bar has reactance of 0.6 pu and alternator has reactance of 0.2 pu, what is the maximum power that can be transferred? 5 pu 6 pu 2.67 pu 2 pu 5 pu 6 pu 2.67 pu 2 pu ANSWER DOWNLOAD EXAMIANS APP
Power Systems A transmission line is operating under no load has ABCD parameters B = 100∠90° has a phase shift of 0.2 rad, how much shunt reactor is required for compensation of ferranti effect? 15.9 H 15.9 mH 2 H 2 mH 15.9 H 15.9 mH 2 H 2 mH ANSWER DOWNLOAD EXAMIANS APP
Power Systems If all the sequence voltages at the fault point in a power system are equal, then the fault point is a LLG LLL LL LG LLG LLL LL LG ANSWER DOWNLOAD EXAMIANS APP
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