Power Systems Buchholz relay is used for protection of transformer. bus bar. alternator. none of these. transformer. bus bar. alternator. none of these. ANSWER DOWNLOAD EXAMIANS APP
Power Systems The inertia constant of 100 MVA, 50 Hz, 4 pole generator is 10 MJ/MVA. If the mechanical input to the machine is suddenly raised from 50 MW to 75 MW, the rotor acceleration will be equal to 225 electrical degrees/s² 22.5 electrical degrees/s² 12.5 electrical degrees/s² 125 electrical degrees/s² 225 electrical degrees/s² 22.5 electrical degrees/s² 12.5 electrical degrees/s² 125 electrical degrees/s² ANSWER DOWNLOAD EXAMIANS APP
Power Systems The method of neutral grounding affects the zero sequence network negative sequence network All of these positive sequence network zero sequence network negative sequence network All of these positive sequence network ANSWER DOWNLOAD EXAMIANS APP
Power Systems Sum of the elements of row i equal to shunt admittances connected to bus i. If this summation is zero, indicates there is no mutual coupling shunt admittance None of these both 1 and 2 mutual coupling shunt admittance None of these both 1 and 2 ANSWER DOWNLOAD EXAMIANS APP
Power Systems Which of the following statements is/are true? By increasing of temperature, neither 1 nor 2 tension decrease both 1 and 2 sag increase neither 1 nor 2 tension decrease both 1 and 2 sag increase ANSWER DOWNLOAD EXAMIANS APP
Power Systems In a biased differential relay the bias is defined as the ratio of fault current and operating coil current. number of turns of restraining and operating coil. operating coil current and restraining coil current. fault current and restraining coil current. fault current and operating coil current. number of turns of restraining and operating coil. operating coil current and restraining coil current. fault current and restraining coil current. ANSWER DOWNLOAD EXAMIANS APP
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