Power Systems A sort line with R/X ratio 1, the zero regulation is obtained when the power factor of the load is 0.5 0 leading unity 0.707 leading 0.5 0 leading unity 0.707 leading ANSWER DOWNLOAD EXAMIANS APP
Power Systems Which of the following buses is/are not PV buses? reactive power support buses both 1 and 2 voltage control buses fixed shunt capacitor buses reactive power support buses both 1 and 2 voltage control buses fixed shunt capacitor buses ANSWER DOWNLOAD EXAMIANS APP
Power Systems Aluminium is now most commonly employed conductor material in transmission lines than copper because it is more conductive costlier it is cheaper and lighter its tensile strength is more it is more conductive costlier it is cheaper and lighter its tensile strength is more 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% 15% 85% 88.2% 11.8% 15% 85% 88.2% ANSWER DOWNLOAD EXAMIANS APP
Power Systems The receiving end voltage for a long line under no load condition is less than the sending end voltage more than the sending end voltage any of the above equal to the sending end voltage less than the sending end voltage more than the sending end voltage any of the above equal to the sending end voltage ANSWER DOWNLOAD EXAMIANS APP
Power Systems Two insulator discs of identical capacitance value C make up a string for a 22 kV, 50 Hz, single phase overhead line insulation system. If pin to earth capacitance is also C, then find the string efficiency? 90% 75% 86%% 50% 90% 75% 86%% 50% ANSWER DOWNLOAD EXAMIANS APP
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