Power Systems Which of the following is/are the stator faults? All of these over current Inter phase faults failure of excitation All of these over current Inter phase faults failure of excitation 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 9.936 pu 8.936 pu 7.936 pu 10.936 pu 9.936 pu 8.936 pu 7.936 pu 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 400 MVA 500 MVA 200 MVA 100 MVA 400 MVA 500 MVA 200 MVA 100 MVA ANSWER DOWNLOAD EXAMIANS APP
Power Systems A transmission line has an impedance of (2+j6) Ω has voltage regulation of 10% at a load power factor of 0.8 lag. Find the voltage regulation for a load of 0.6 lead -6.92% 6.92% -10% 10% -6.92% 6.92% -10% 10% ANSWER DOWNLOAD EXAMIANS APP
Power Systems Making and breaking currents of 3 phase AC circuit breakers in power system are respectively in what form? RMS and Instantaneous value Instantaneous and RMS value RMS and RMS value any of the above RMS and Instantaneous value Instantaneous and RMS value RMS and RMS value any of the above ANSWER DOWNLOAD EXAMIANS APP
Power Systems Skin effective is more in case of communication lines power lines same in both cases None of these communication lines power lines same in both cases None of these ANSWER DOWNLOAD EXAMIANS APP
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