Power Systems What type of back up protection is used for alternators? IDMT relay. Impedance relay. Mho relay. Buchholz relay. IDMT relay. Impedance relay. Mho relay. Buchholz relay. ANSWER DOWNLOAD EXAMIANS APP
Power Systems For which one of the following types of motors, is the equal area criterion for stability applicable? Three phase synchronous motor DC series motor DC shunt motor Three phase induction motor Three phase synchronous motor DC series motor DC shunt motor Three phase induction motor ANSWER DOWNLOAD EXAMIANS APP
Power Systems Length of the cable is doubled, its capacitance C will be one-half. doubled. unchanged. one-fourth. one-half. doubled. unchanged. one-fourth. ANSWER DOWNLOAD EXAMIANS APP
Power Systems Differential relays does not used for which of the following faults? faults within a transformer faults within a generator both 1 and 2 through faults faults within a transformer faults within a generator both 1 and 2 through faults ANSWER DOWNLOAD EXAMIANS APP
Power Systems A fault occurring at the terminals of an unloaded synchronous generator operating at its rated voltage has resulted in the following values of currents and voltages. IR0 = j 2.37 pu IR1 = -j 3.05 pu IR2 = j 0.68 pu VR0 = VR1 = VR2 = 0.237 pu. Which of the following faults has occurred? LG LLG LL LLL LG LLG LL LLL ANSWER DOWNLOAD EXAMIANS APP
Power Systems Which of the following quantities are to be calculated for generator bus? δ and V Q and δ P and V P and Q δ and V Q and δ P and V P and Q ANSWER DOWNLOAD EXAMIANS APP
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