Power Systems If the fault current is 2000 A, the relay setting is 50% and CT ratio is 400 : 5, then plug setting multiplier will be 15. 50. 25. 10. 15. 50. 25. 10. ANSWER DOWNLOAD EXAMIANS APP
Power Systems Maximum efficiency of modern coal fired steam raising thermal power plants is restricted to about 035 (a low value), mainly because of low alternative efficiency. low steam turbine mechanical efficiency. high energy loss in boiler. high energy loss from turbine exhaust to condenser. low alternative efficiency. low steam turbine mechanical efficiency. high energy loss in boiler. high energy loss from turbine exhaust to condenser. ANSWER DOWNLOAD EXAMIANS APP
Power Systems A transmission line has a surge impedance of 400 Ω is connected with the cable having surge impedance of 40 Ω, a surge magnitude of 100 kV is travelling from the transmission line towards the cable. Find the incident current? 100 A 250 A 200 A 2500 A 100 A 250 A 200 A 2500 A ANSWER DOWNLOAD EXAMIANS APP
Power Systems Advantages of shunt compensation is/are single unit can be used as both capacitance and inductor by adjusting the excitation All of these It requires less maintanance smooth voltage regulation is possible by controlling excitation single unit can be used as both capacitance and inductor by adjusting the excitation All of these It requires less maintanance smooth voltage regulation is possible by controlling excitation ANSWER DOWNLOAD EXAMIANS APP
Power Systems Which type of connection is employed for current transformers for the protection of delta- star connected 3-phase transformer? star-delta star-star delta-delta delta-star star-delta star-star delta-delta delta-star ANSWER DOWNLOAD EXAMIANS APP
Power Systems The value of off diagonal elements is sum of admittances connected at bus i sum of admittances connected at bus j which is connected between bus i and bus j with positive sign which is connected between bus i and bus j with negative sign sum of admittances connected at bus i sum of admittances connected at bus j which is connected between bus i and bus j with positive sign which is connected between bus i and bus j with negative sign ANSWER DOWNLOAD EXAMIANS APP
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