Power Systems The Y bus matrix of a 100 bus interconnected system is 90% sparse. Then find the number of non zero elements in the Y bus matrix? 10 90 9000 1000 10 90 9000 1000 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 29.28 kV 30.28 kV 28.28 kV 31.28 kV 29.28 kV 30.28 kV ANSWER DOWNLOAD EXAMIANS APP
Power Systems In hydro power stations what is an enlarged body of water just above the intake and used as a regulating reservoir called Spillways. Fore bay. Reservoir. Penstock. Spillways. Fore bay. Reservoir. Penstock. ANSWER DOWNLOAD EXAMIANS APP
Power Systems The line current IR flowing into balanced delta connected load is - j5 - 3 A. If the phase sequence is RYB the phase current IYB is 55.1. 20. 10. 5. 55.1. 20. 10. 5. ANSWER DOWNLOAD EXAMIANS APP
Power Systems Making and breaking currents of 3 phase AC circuit breakers in power system are respectively in what form? 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 RMS and Instantaneous value ANSWER DOWNLOAD EXAMIANS APP
Power Systems What should be the minimum depth (in metre)of cable trench to dug for laying of 1.1 kV? 0.90. 1.20. 1.05. 0.75. 0.90. 1.20. 1.05. 0.75. ANSWER DOWNLOAD EXAMIANS APP
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