Power Systems In which of the following given faults, all the sequence currents are equal? LLG LG LLL LL LLG LG LLL LL ANSWER DOWNLOAD EXAMIANS APP
Power Systems If a 500 MVA, 11 kV 3-phase generator at 50 Hz feeds through a transfer impedance of (0+j0.605) Ω/phase, an infinite voltage also at 11 kV, then the maximum steady state power transfer on the base of 500 MVA and 11 kV is 0.4 pu 1 pu 0.5 pu 0.8 pu 0.4 pu 1 pu 0.5 pu 0.8 pu ANSWER DOWNLOAD EXAMIANS APP
Power Systems Efficiency of thermal power plant can be taken as product of efficiencies of all stages. generator efficiency. turbine efficiency. efficiency of thermal cycle. product of efficiencies of all stages. generator efficiency. turbine efficiency. efficiency of thermal cycle. ANSWER DOWNLOAD EXAMIANS APP
Power Systems In a 220 kV system, the inductance and capacitance up to the circuit breaker location are 25 mH and 0.025 µF respectively. The value of resistor required to be connected across the breaker contacts which will give no transient oscillations, is 500 Ω 1000 Ω 25 Ω 250 Ω 500 Ω 1000 Ω 25 Ω 250 Ω ANSWER DOWNLOAD EXAMIANS APP
Power Systems For a 500 Hz frequency excitation, a 100 km long power line will be modelled as long transmission line any of the above medium transmission line shunt capacitor long transmission line any of the above medium transmission line shunt capacitor ANSWER DOWNLOAD EXAMIANS APP
Power Systems Which of the following matrix is used for load flow studies? Z bus matrix Unit matrix Y bus matrix null matrix Z bus matrix Unit matrix Y bus matrix null matrix ANSWER DOWNLOAD EXAMIANS APP
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