Power Systems When reactance grounding is used in network, the voltage between neutral and ground is 3×IR0 × Xn both 1 and 3 IN × Xn IR0 × Xn 3×IR0 × Xn both 1 and 3 IN × Xn IR0 × Xn ANSWER DOWNLOAD EXAMIANS APP
Power Systems The arc voltage produced in an AC circuit breaker is always leading the arc current by 90°. in phase opposition with the arc current. in phase with the arc current. lagging the arc current by 90°. leading the arc current by 90°. in phase opposition with the arc current. in phase with the arc current. lagging the arc current by 90°. ANSWER DOWNLOAD EXAMIANS APP
Power Systems Pump storage schemes are used to improve the plant capacity factor as well as the load factor of the power system. the power factor. the load factor. the diversity factor. the plant capacity factor as well as the load factor of the power system. the power factor. the load factor. the diversity factor. ANSWER DOWNLOAD EXAMIANS APP
Power Systems If sag in an overhead line increase, tension in the line remains same decrease None of these increase remains same decrease None of these increase ANSWER DOWNLOAD EXAMIANS APP
Power Systems Which of the following is/are the stator faults? Inter phase faults failure of excitation All of these over current Inter phase faults failure of excitation All of these over current ANSWER DOWNLOAD EXAMIANS APP
Power Systems The positive, negative and zero sequence per unit impedance of two generators connected in parallel are X1 = 0.12 pu, X2 = 0.096 pu and X0 = 0.036 pu. For LG fault at generator terminals (with 1 pu voltage) the positive sequence current will be 10.936 pu 7.936 pu 8.936 pu 9.936 pu 10.936 pu 7.936 pu 8.936 pu 9.936 pu ANSWER DOWNLOAD EXAMIANS APP
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