Power Systems A three phase, 33 kV oil circuit breaker is rated 1200 A, 2000 MVA, 3 secs. The symmetrical breaking current is 55 kA. 45 kA. 50 kA. 35 kA. 55 kA. 45 kA. 50 kA. 35 kA. ANSWER DOWNLOAD EXAMIANS APP
Power Systems Advantages of higher transmission voltage is/are Area of cross section and volume of the conductor is reduced Transmission line losses are reduced All of these Power transfer capability of the transmission line is increased Area of cross section and volume of the conductor is reduced Transmission line losses are reduced All of these Power transfer capability of the transmission line is increased ANSWER DOWNLOAD EXAMIANS APP
Power Systems Binary vapor cycle are used for improving the condenser performance. improving the plant efficiency. All of these increasing the turbine efficiency. improving the condenser performance. improving the plant efficiency. All of these increasing the turbine efficiency. 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 lag 0.6 lead 0.8 lead 0.6 lag 0.8 lag 0.6 lead 0.8 lead ANSWER DOWNLOAD EXAMIANS APP
Power Systems The main advantage of the Decoupled Load Flow (DLF) as compared to the NR method is reduced memory requirements in storing the Jacobian elements All of these number of iterations are less accuracy is more reduced memory requirements in storing the Jacobian elements All of these number of iterations are less accuracy is more ANSWER DOWNLOAD EXAMIANS APP
Power Systems An isolated synchronous generator with transient reactance equal to 0.1 pu on a 100 MVA base is connected to the high voltage bus through a step up transformer of reactance 0.1 pu on a 100 MVA base. The fault level at the bus is 500 MVA 400 MVA 100 MVA 200 MVA 500 MVA 400 MVA 100 MVA 200 MVA ANSWER DOWNLOAD EXAMIANS APP
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