Power Systems Which of the following grounding is not practically preferred for protection of equipments? All of these isolated grounding reactance grounding resistance grounding All of these isolated grounding reactance grounding resistance grounding ANSWER DOWNLOAD EXAMIANS APP
Power Systems An over current relay, having a current setting of 125% connected to a supply circuit through a current transformer of ratio 500/5. The plug setting multiplier for a fault current of 5 kA is 6 8 5 2 6 8 5 2 ANSWER DOWNLOAD EXAMIANS APP
Power Systems Surge impedance loading can be increased by increasing of voltage level both 1 and 2 increasing of inductance value increasing of capacitance value increasing of voltage level both 1 and 2 increasing of inductance value increasing of capacitance value ANSWER DOWNLOAD EXAMIANS APP
Power Systems The conductor carries more current on surface as compared to core. This is called as unsymmetrical fault corona effect skin effect All of these unsymmetrical fault corona effect skin effect All of these ANSWER DOWNLOAD EXAMIANS APP
Power Systems If the inertia constant H = 8 MJ/MVA for a 50 MVA generator, the stored energy is 200 MJ 8 MJ 50 MJ 400 MJ 200 MJ 8 MJ 50 MJ 400 MJ ANSWER DOWNLOAD EXAMIANS APP
Power Systems What type of back up protection is used for alternators? Mho relay. Impedance relay. IDMT relay. Buchholz relay. Mho relay. Impedance relay. IDMT relay. Buchholz relay. ANSWER DOWNLOAD EXAMIANS APP
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