Power Systems For a 500 Hz frequency excitation, a 100 km long power line will be modelled as shunt capacitor long transmission line any of the above medium transmission line shunt capacitor long transmission line any of the above medium transmission line ANSWER DOWNLOAD EXAMIANS APP
Power Systems Which of the following represents the transmission line positive sequence reactance Xm - Xs Xs - Xm Xs +2 Xm 2Xs + Xm Xm - Xs Xs - Xm Xs +2 Xm 2Xs + Xm ANSWER DOWNLOAD EXAMIANS APP
Power Systems The SWR on a lossless transmission line of the characteristic impedance 100 ohm is 3. The line is the terminated by A resistance of 100 ohm. A resistance of j100/3 ohm. A resistance of j300 ohm. A resistance of 100/3 ohm. A resistance of 100 ohm. A resistance of j100/3 ohm. A resistance of j300 ohm. A resistance of 100/3 ohm. ANSWER DOWNLOAD EXAMIANS APP
Power Systems Lightning arresters are made up of which material? silver any of the above silicon oxide copper silver any of the above silicon oxide copper ANSWER DOWNLOAD EXAMIANS APP
Power Systems If the diameter of the conductor is increased no change in inductance and resistance the inductance is decreased the inductance is increased the resistance is increased no change in inductance and resistance the inductance is decreased the inductance is increased the resistance is increased 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% 15% 88.2% 11.8% 85% 15% 88.2% ANSWER DOWNLOAD EXAMIANS APP
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