Power Systems The presence of earth in case of overhead lines decrease capacitance increase capacitance decrease inducatance increase inductance decrease capacitance increase capacitance decrease inducatance increase inductance 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? 88.2% 15% 11.8% 85% 88.2% 15% 11.8% 85% ANSWER DOWNLOAD EXAMIANS APP
Power Systems A 1-phase transmission line has an impedance (4 + 3j ) Ω. Find the power factor of the load for zero voltage regulation? 0.6 lag 0.8 lead 0.6 lead 0.8 lag 0.6 lag 0.8 lead 0.6 lead 0.8 lag ANSWER DOWNLOAD EXAMIANS APP
Power Systems In a 3-phase transmission line, each phase is supported by 3 insulated discs, maximum voltage of each disc is 20 kV. Find the operating voltage of the transmission line per phase if efficiency of string is 80.6%. 48.36 kV 83.76 kV 52.84 kV 20 kV 48.36 kV 83.76 kV 52.84 kV 20 kV ANSWER DOWNLOAD EXAMIANS APP
Power Systems Specified quantities of load bus are P and δ P and Q Q and V V and δ P and δ P and Q Q and V V and δ ANSWER DOWNLOAD EXAMIANS APP
Power Systems The rate of rise of re-striking voltage is dependent upon capacitance of the system only inductance of the system only resistance of the system only both 1 and 2 capacitance of the system only inductance of the system only resistance of the system only both 1 and 2 ANSWER DOWNLOAD EXAMIANS APP
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