Power Systems Earth fault relay uses the which of the following sequence currents? negative sequence zero sequence any of the above positive sequence negative sequence zero sequence any of the above positive sequence ANSWER DOWNLOAD EXAMIANS APP
Power Systems The neutral of 10 MVA, 11 kV alternator is earthed through a resistance of 5 ohms. The fault ready is set to operate at 0.75 A. The current transformers have a ratio of 1000/5. What is the percentage of the alternator winding is protected? 15% 85% 88.2% 11.8% 15% 85% 88.2% 11.8% 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 0.8 pu 0.4 pu 1 pu 0.5 pu 0.8 pu 0.4 pu 1 pu ANSWER DOWNLOAD EXAMIANS APP
Power Systems The economics of power plant is greatly influenced by load factor both 1 and 2 nether 1 nor 2 diversity factor load factor both 1 and 2 nether 1 nor 2 diversity factor ANSWER DOWNLOAD EXAMIANS APP
Power Systems The internal flux linkage due to internal flux of a conductor is I/4*10-7 wb-T/m I/6*10-7 wb-T/m All of these I/2*10-7 wb-T/m I/4*10-7 wb-T/m I/6*10-7 wb-T/m All of these I/2*10-7 wb-T/m ANSWER DOWNLOAD EXAMIANS APP
Power Systems Breaking current is a ------------------ value? any of the above average maximum RMS any of the above average maximum RMS ANSWER DOWNLOAD EXAMIANS APP
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