Power Systems As the frequency of the system is increased, the charging MVAR None of these increases remains unaffected decreases None of these increases remains unaffected decreases 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 Ships are usually supplied power by Diesel engine. Hydraulic turbine. None of above. Steam accumulator. Diesel engine. Hydraulic turbine. None of above. Steam accumulator. ANSWER DOWNLOAD EXAMIANS APP
Power Systems The angular moment of 10 MVA generator is 0.2. Find the new value of angular moment for 20 MVA base? 0.4 pu 0.2 pu 0.25 pu 0.1 pu 0.4 pu 0.2 pu 0.25 pu 0.1 pu 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? 0.8 lag 0.6 lag 0.8 lead 0.6 lead 0.8 lag 0.6 lag 0.8 lead 0.6 lead ANSWER DOWNLOAD EXAMIANS APP
Power Systems The per unit impedance of a circuit element is 0.30. If the base kV and base MVA are halved, then the new value of the per unit impedance of the circuit element will be 0.30 0.0060 0.60 0.0030 0.30 0.0060 0.60 0.0030 ANSWER DOWNLOAD EXAMIANS APP
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