Power Systems A three phase, 33 kV oil circuit breaker is rated 1200 A, 2000 MVA, 3 secs. The symmetrical breaking current is 45 kA. 55 kA. 35 kA. 50 kA. 45 kA. 55 kA. 35 kA. 50 kA. ANSWER DOWNLOAD EXAMIANS APP
Power Systems When reactance grounding is used in network, the voltage between neutral and ground is 3×IR0 × Xn IN × Xn both 1 and 3 IR0 × Xn 3×IR0 × Xn IN × Xn both 1 and 3 IR0 × Xn ANSWER DOWNLOAD EXAMIANS APP
Power Systems At slack bus, which one of the following combinations of variables is not specified? P and V P and Q Q and V V and δ P and V P and Q Q and V V and δ ANSWER DOWNLOAD EXAMIANS APP
Power Systems If the inertia constant H = 10 MJ/MVA for a 50 MVA generator, the stored energy is 5 MJ 500 MJ 10 MJ 50 MJ 5 MJ 500 MJ 10 MJ 50 MJ ANSWER DOWNLOAD EXAMIANS APP
Power Systems Find the value of a729, where "a" is the operator α² 1 0 α α² 1 0 α ANSWER DOWNLOAD EXAMIANS APP
Power Systems What will be the thermal efficiency of a 240 V, 1000 W electric kettle if it brings 2 liters of water at 15° C to boiling point 15 Minutes 80.25 %. 78.96 %. 74.56 %. 79.33 %. 80.25 %. 78.96 %. 74.56 %. 79.33 %. ANSWER DOWNLOAD EXAMIANS APP
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