Power Systems The value of inductance used for compensation of arcing grounds is 1/3ω²C 3/ω²C 3ω²C ω²C/3 1/3ω²C 3/ω²C 3ω²C ω²C/3 ANSWER DOWNLOAD EXAMIANS APP
Power Systems Power system network has a total power of 5000 MW at 50 Hz supplying to the different consumers. Frequency is varying at 1.5% per change of 2% load. Assume R =0.004 Hz/MW. Find the steady state frequency deviation if a sudden loss of 200 MW occur due to tripping of one of the transmission line? -0.52 Hz 0.52 Hz 0.48 Hz 50 Hz -0.52 Hz 0.52 Hz 0.48 Hz 50 Hz ANSWER DOWNLOAD EXAMIANS APP
Power Systems When a neutral point of 3 - Φ system is directly connected to earth then it has what type of grounding? Reactance. Resistance. Peterson coil. Solid. Reactance. Resistance. Peterson coil. Solid. ANSWER DOWNLOAD EXAMIANS APP
Power Systems If R = 84 ohm/Km, G = 10-6 mho/Km, H = 0.01 H/Km, C = 0.061 μ F/Km and frequency = 1000 Hz, then what is the value of propagation constant of the transmission line 0.01 + j 0.02 per Km. 0.09 + j 0.018 per Km. 0.018 per Km. None of them. 0.01 + j 0.02 per Km. 0.09 + j 0.018 per Km. 0.018 per Km. None of them. ANSWER DOWNLOAD EXAMIANS APP
Power Systems Which of the following matrix is used for load flow studies? null matrix Y bus matrix Z bus matrix Unit matrix null matrix Y bus matrix Z bus matrix Unit matrix ANSWER DOWNLOAD EXAMIANS APP
Power Systems The most suitable circuit breaker for short line fault without switching resistor is SF6 breaker. none of these. air blast circuit breaker. oil circuit breaker. SF6 breaker. none of these. air blast circuit breaker. oil circuit breaker. ANSWER DOWNLOAD EXAMIANS APP
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