Power Systems Which of the following methods is/are used for reactive or voltage compensation shunt capacitor generation excitation control All of these series capacitor shunt capacitor generation excitation control All of these series capacitor ANSWER DOWNLOAD EXAMIANS APP
Power Systems The load current in short circuit calculations are neglected because short circuit currents are greatly out of phase with load currents nether 1 nor 2 short circuit currents are much larger than load currents both 1 and 2 short circuit currents are greatly out of phase with load currents nether 1 nor 2 short circuit currents are much larger than load currents both 1 and 2 ANSWER DOWNLOAD EXAMIANS APP
Power Systems If in a line, resistance and reactance are found to be equal and regulation is zero, then load will have unity power factor zero power factor 0.707 lagging power factor 0.707 leading power factor unity power factor zero power factor 0.707 lagging power factor 0.707 leading power factor ANSWER DOWNLOAD EXAMIANS APP
Power Systems A transmission line has 200 km operating at frequency of 10 Hz Hz. Find the type of the line medium transmission line any of the above short transmission line long transmission line medium transmission line any of the above short transmission line long transmission line ANSWER DOWNLOAD EXAMIANS APP
Power Systems A thermal protection relay provides protection against what? Temperature any of the above Over load Short circuit Temperature any of the above Over load Short circuit ANSWER DOWNLOAD EXAMIANS APP
Power Systems In a 220 kV system, the inductance and capacitance up to the circuit breaker location are 25 mH and 0.025 µF respectively. The value of resistor required to be connected across the breaker contacts which will give no transient oscillations, is 25 Ω 250 Ω 1000 Ω 500 Ω 25 Ω 250 Ω 1000 Ω 500 Ω ANSWER DOWNLOAD EXAMIANS APP