Power Systems A sort line with R/X ratio 1, the zero regulation is obtained when the power factor of the load is unity 0.707 leading 0.5 0 leading unity 0.707 leading 0.5 0 leading ANSWER DOWNLOAD EXAMIANS APP
Power Systems A pin type insulator has 100 kV puncture voltage. If 10 kV flash over voltage occurred in a transmission line, then find the safety factor of insulator? 10 0.001 1000 0.1 10 0.001 1000 0.1 ANSWER DOWNLOAD EXAMIANS APP
Power Systems Power system network has a total power of 5000 MW at 50 Hz supplying to the different consumers. Frequency is varying at 1.5% per change of 2% load. Assume R =0.004 Hz/MW. Find the steady state frequency deviation if a sudden loss of 200 MW occur due to tripping of one of the transmission line? 50 Hz 0.48 Hz -0.52 Hz 0.52 Hz 50 Hz 0.48 Hz -0.52 Hz 0.52 Hz ANSWER DOWNLOAD EXAMIANS APP
Power Systems Surge impedance loading of a line is increased by which of the following compensation methods? both 1 and 2 shunt capacitor shunt reactor series capacitor both 1 and 2 shunt capacitor shunt reactor series capacitor ANSWER DOWNLOAD EXAMIANS APP
Power Systems In a long transmission line, if we increase the length of the line, the parameters A and B respectively increases and decreases decreases and increases decreases and decreases increases and increases increases and decreases decreases and increases decreases and decreases increases and increases ANSWER DOWNLOAD EXAMIANS APP
Power Systems Lightning arresters are made up of which material? silicon oxide copper any of the above silver silicon oxide copper any of the above silver ANSWER DOWNLOAD EXAMIANS APP
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