Power Systems A 100 MVA alternator operating at full load at 50 Hz. H = 4 MWsec/MVA, Td = 0.5 sec. One of the transmission line is tripped. So that output of generator is reduced to 70 MW. Find the frequency deviation during this time? -0.92 0.56 -0.56 0.92 -0.92 0.56 -0.56 0.92 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? LL LLG LG LLL LL LLG LG LLL ANSWER DOWNLOAD EXAMIANS APP
Power Systems Recovery voltage in CB is equal to arcing period voltage. none of these. transient voltage. normal frequency 50 Hz rms voltage. arcing period voltage. none of these. transient voltage. normal frequency 50 Hz rms voltage. ANSWER DOWNLOAD EXAMIANS APP
Power Systems A CANDU reactor uses only fertile materials. natural uranium as fuel and heavy water as moderator and coolant. highly enriched uranium as fuel and water as moderator and coolant. enriched uranium as fuel and ordinary water as moderator and cooler. only fertile materials. natural uranium as fuel and heavy water as moderator and coolant. highly enriched uranium as fuel and water as moderator and coolant. enriched uranium as fuel and ordinary water as moderator and cooler. ANSWER DOWNLOAD EXAMIANS APP
Power Systems Specified quantities of slack bus are V and δ P and δ P and Q P and V V and δ P and δ P and Q P and V ANSWER DOWNLOAD EXAMIANS APP
Power Systems Which of the following method is/are more reliable? Fast Decoupled Load Flow (FDLF) method Newton Raphson (NR) method All of these Gauss-Siedel (GS) method Fast Decoupled Load Flow (FDLF) method Newton Raphson (NR) method All of these Gauss-Siedel (GS) method ANSWER DOWNLOAD EXAMIANS APP
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