Power Systems Lightning arresters are used to protect electrical equipment against over voltages due to indirect lightning stroke. over currents due to lightning stroke. direct strokes of lightning. power frequency of over voltages. over voltages due to indirect lightning stroke. over currents due to lightning stroke. direct strokes of lightning. power frequency of over voltages. ANSWER DOWNLOAD EXAMIANS APP
Power Systems A transmission line has 50 km operating at frequency of 500 Hz. Find the type of the line? short transmission line long transmission line any of the above medium transmission line short transmission line long transmission line any of the above medium transmission line ANSWER DOWNLOAD EXAMIANS APP
Power Systems Maximum power transfer capability of transmission line can be increased by Parallel transmission lines Using bundled conductors All of these Using series capacitance Parallel transmission lines Using bundled conductors All of these Using series capacitance ANSWER DOWNLOAD EXAMIANS APP
Power Systems A 3-phase transmission line operating at Vs = 400 kV and has ABCD parameters A= D = 0.8∠0°, B = 100∠°90 Ω, C = 0.5*10^-6∠90° ℧. Find Charging current under no load? 0.512∠90° A/phase 1.144∠90° A/phase 0.344∠90° A/phase 0.144∠90° A/phase 0.512∠90° A/phase 1.144∠90° A/phase 0.344∠90° A/phase 0.144∠90° A/phase ANSWER DOWNLOAD EXAMIANS APP
Power Systems A network containing 50 buses in which 10 are the voltage control buses, 6 are the generator buses. Find the size of the Jacobian matrix? 84*84 33*33 83*83 34*34 84*84 33*33 83*83 34*34 ANSWER DOWNLOAD EXAMIANS APP
Power Systems Which of the following method is/are more reliable? Newton Raphson (NR) method All of these Gauss-Siedel (GS) method Fast Decoupled Load Flow (FDLF) method Newton Raphson (NR) method All of these Gauss-Siedel (GS) method Fast Decoupled Load Flow (FDLF) method ANSWER DOWNLOAD EXAMIANS APP
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