Power Systems In a 400 kV power network, 360 kV is recorded at 400 kV bus. The reactive power absorbed by a shunt reactor for 50 MVAr, 400 kV connected at the bus is 55.56 MVAr. 40.5 MVAr. 61.73 MVAr. 45.0 MVAr. 55.56 MVAr. 40.5 MVAr. 61.73 MVAr. 45.0 MVAr. ANSWER DOWNLOAD EXAMIANS APP
Power Systems A Pelton wheel turbine having a rated speed of 300 rpm is connected to an alternator to produce power at 50 Hz. The number of poles required in the alternator is 20 10 4 8 20 10 4 8 ANSWER DOWNLOAD EXAMIANS APP
Power Systems Ferranti effect can be compensated by which of the following series capacitor both 1 and 2 shunt capacitor shunt reactor series capacitor both 1 and 2 shunt capacitor shunt reactor ANSWER DOWNLOAD EXAMIANS APP
Power Systems In order to have lower cost of power generaion the load factor and diversity factor should be low the load factor should be high but diversity factor should be low the load factor should be low but diversity factor should be high The load factor and diversity factor should be high the load factor and diversity factor should be low the load factor should be high but diversity factor should be low the load factor should be low but diversity factor should be high The load factor and diversity factor should be high ANSWER DOWNLOAD EXAMIANS APP
Power Systems Consider a three phase, 50 Hz, 11 kV distribution system. Each of the conductors is suspended by an insulator string having two identical porcelain insulators. The self capacitance of the insulators is 5 times the shunt capacitance between the link and ground. Find the voltage across the two insulators V1 and V2? (V1 = Voltage of disc nearest to the conductor) V1 = 5 kV and V2 = 6 kV V1 = 2.89 kV and V2 = 3.46 kV V1 = 6 kV and V2 = 5 kV V1 = 3.46 kV and V2 = 2.89 kV V1 = 5 kV and V2 = 6 kV V1 = 2.89 kV and V2 = 3.46 kV V1 = 6 kV and V2 = 5 kV V1 = 3.46 kV and V2 = 2.89 kV ANSWER DOWNLOAD EXAMIANS APP
Power Systems An alternator having an induced emf of 1.6 pu is connected to an infinite bus of 1 pu. If the bus bar has reactance of 0.6 pu and alternator has reactance of 0.2 pu, what is the maximum power that can be transferred? 2.67 pu 6 pu 2 pu 5 pu 2.67 pu 6 pu 2 pu 5 pu ANSWER DOWNLOAD EXAMIANS APP
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