Power Systems Most commonly used material for insulator is porcelain mica glass All of these porcelain mica glass All of these ANSWER DOWNLOAD EXAMIANS APP
Power Systems A thermal protection relay provides protection against what? Temperature Over load Short circuit any of the above Temperature Over load Short circuit any of the above ANSWER DOWNLOAD EXAMIANS APP
Power Systems An unloaded generator with a pre-fault voltage 1 pu has the following sequence impedance: Z0 = j 0.15 pu, Z1 = Z2 = j 0.25 pu The neutral is grounded with a reactance of 0.05 pu. The fault current in pu for single line to ground fault is 2.5 pu 3.75 pu 4.28 pu 7.25 pu 2.5 pu 3.75 pu 4.28 pu 7.25 pu ANSWER DOWNLOAD EXAMIANS APP
Power Systems The rating of CB is in terms of VAR. voltage. current. volt - ampere. VAR. voltage. current. volt - ampere. ANSWER DOWNLOAD EXAMIANS APP
Power Systems Which of the following buses is/are not PV buses? reactive power support buses both 1 and 2 voltage control buses fixed shunt capacitor buses reactive power support buses both 1 and 2 voltage control buses fixed shunt capacitor buses ANSWER DOWNLOAD EXAMIANS APP
Power Systems A 25 MVA, 11 kV alternator is supplying full load at a point of 0.75 lagging. Determine the percentage increase in earning capacity when it is operated at improved power factor of 0.96 lagging. 14 %. None of above 56 %. 28 %. 14 %. None of above 56 %. 28 %. ANSWER DOWNLOAD EXAMIANS APP
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