Power Systems If the load is short circuited, then reflection coefficient of voltage is -1 1 -2 0 -1 1 -2 0 ANSWER DOWNLOAD EXAMIANS APP
Power Systems What type of back up protection is used for alternators? Mho relay. Impedance relay. IDMT relay. Buchholz relay. Mho relay. Impedance relay. IDMT relay. Buchholz relay. ANSWER DOWNLOAD EXAMIANS APP
Power Systems A hydraulic turbine having rated speed of 250 rpm is connected to a synchronous generator. In order to produce power at 50 Hz, the numbers of pole are required in the generator 24. 12. 16. 6. 24. 12. 16. 6. ANSWER DOWNLOAD EXAMIANS APP
Power Systems Which of the following method is/are more reliable? All of these Newton Raphson (NR) method Gauss-Siedel (GS) method Fast Decoupled Load Flow (FDLF) method All of these Newton Raphson (NR) method Gauss-Siedel (GS) method Fast Decoupled Load Flow (FDLF) method ANSWER DOWNLOAD EXAMIANS APP
Power Systems If the time of operation of a relay for unity TMS is 10 sec. the time of operation of 0.5 TMS will be _______________ secs. 7. 20. 5. 3. 7. 20. 5. 3. ANSWER DOWNLOAD EXAMIANS APP
Power Systems To prevent maloperation of deferentially connected relay while energizing a transformer, the relay restraining coil is biased with 2nd harmonic current. 7th harmonic current. 5th harmonic current. 3rd harmonic current. 2nd harmonic current. 7th harmonic current. 5th harmonic current. 3rd harmonic current. ANSWER DOWNLOAD EXAMIANS APP
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