Power Systems Condition for zero voltage regulation is cosφ = R/X tanφ = X/R cosφ = X/R tanφ = R/X cosφ = R/X tanφ = X/R cosφ = X/R tanφ = R/X ANSWER DOWNLOAD EXAMIANS APP
Power Systems For complete protection of 3-phase system from the short circuit faults minimum number of relays required are three two six one three two six one 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? 2 pu 2.67 pu 6 pu 5 pu 2 pu 2.67 pu 6 pu 5 pu ANSWER DOWNLOAD EXAMIANS APP
Power Systems Earth fault relay uses the which of the following sequence currents? negative sequence positive sequence any of the above zero sequence negative sequence positive sequence any of the above zero sequence ANSWER DOWNLOAD EXAMIANS APP
Power Systems Which of the following power plants needs highly skilled/qualified engineers for its operation Thermal. Gas-turbine. Nuclear. Hydro Power Plant Thermal. Gas-turbine. Nuclear. Hydro Power Plant 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 100 MVA 400 MVA 125 MVA 500 MVA 100 MVA 400 MVA 125 MVA 500 MVA ANSWER DOWNLOAD EXAMIANS APP
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