Power Systems A transmission line has impedance of (0.005 + j0.05) pu. Find the line at which maximum value of negative DC off set current is produced, if it is applied with Vm cosωt? 9.68 2.63 msec 4.68 msec 1.47 msec 9.68 2.63 msec 4.68 msec 1.47 msec ANSWER DOWNLOAD EXAMIANS APP
Power Systems Which of the following rotor is used in thermal power plants? cylindrical rotor either of these salient pole rotor squirrel cage rotor cylindrical rotor either of these salient pole rotor squirrel cage rotor ANSWER DOWNLOAD EXAMIANS APP
Power Systems Proximity effect depends on distance between the conductors relative permeability All of these frequency distance between the conductors relative permeability All of these frequency ANSWER DOWNLOAD EXAMIANS APP
Power Systems Which of following power plants normally operage at high speeds Hydro electric. Thermal. Petrol engine. Diesel engine. Hydro electric. Thermal. Petrol engine. Diesel engine. ANSWER DOWNLOAD EXAMIANS APP
Power Systems Which of the following buses is/are not PV buses? both 1 and 2 reactive power support buses fixed shunt capacitor buses voltage control buses both 1 and 2 reactive power support buses fixed shunt capacitor buses voltage control buses ANSWER DOWNLOAD EXAMIANS APP
Power Systems The neutral of 10 MVA, 11 kV alternator is earthed through a resistance of 5 ohms. The fault ready is set to operate at 0.75 A. The current transformers have a ratio of 1000/5. What is the percentage of the alternator winding is protected? 11.8% 85% 88.2% 15% 11.8% 85% 88.2% 15% ANSWER DOWNLOAD EXAMIANS APP
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