Power Systems Find the value of a729, where "a" is the operator α α² 1 0 α α² 1 0 ANSWER DOWNLOAD EXAMIANS APP
Power Systems A 50 Hz, 17.32 kV generator is connected to a power system. The system reactance and capacitance per phase are 10 mH and 0.2 mF respectively. What is the maximum voltage across the contacts of the circuit breaker at an instant when it passes through zero? 28.28 kV 31.28 kV 30.28 kV 29.28 kV 28.28 kV 31.28 kV 30.28 kV 29.28 kV ANSWER DOWNLOAD EXAMIANS APP
Power Systems The zero sequence current of a generator for line to ground fault is j3 pu. Then the current through the neutral during the fault is j6 pu j3 pu j1 pu j9 pu j6 pu j3 pu j1 pu j9 pu ANSWER DOWNLOAD EXAMIANS APP
Power Systems A hydro power plant of run off river type should be provided with pondage so that the operating head is controlled. pressure inside the turbine casing remains. firm capacity of plant is increased. kinetic energy of the running water is fully utilized. operating head is controlled. pressure inside the turbine casing remains. firm capacity of plant is increased. kinetic energy of the running water is fully utilized. ANSWER DOWNLOAD EXAMIANS APP
Power Systems For which one of the following types of motors, is the equal area criterion for stability applicable? Three phase synchronous motor DC shunt motor DC series motor Three phase induction motor Three phase synchronous motor DC shunt motor DC series motor Three phase induction motor ANSWER DOWNLOAD EXAMIANS APP
Power Systems Stock bridge dampers are used in case hill areas to over come the which problem? increase power factor unequal ice loading All of these increase string efficiency increase power factor unequal ice loading All of these increase string efficiency ANSWER DOWNLOAD EXAMIANS APP
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