Power Systems Which of the following grounding is not practically preferred for protection of equipments? reactance grounding isolated grounding resistance grounding All of these reactance grounding isolated grounding resistance grounding All of these ANSWER DOWNLOAD EXAMIANS APP
Power Systems A transmission line is operating under no load has ABCD parameters B = 100∠90° has a phase shift of 0.2 rad, how much shunt reactor is required for compensation of ferranti effect? 15.9 mH 2 mH 2 H 15.9 H 15.9 mH 2 mH 2 H 15.9 H ANSWER DOWNLOAD EXAMIANS APP
Power Systems For a 500 Hz frequency excitation, a 100 km long power line will be modelled as long transmission line medium transmission line any of the above shunt capacitor long transmission line medium transmission line any of the above shunt capacitor ANSWER DOWNLOAD EXAMIANS APP
Power Systems Main bus bar protection scheme is /are both fault bus and differential protection. fault bus protection. differential protection. none of these. both fault bus and differential protection. fault bus protection. differential protection. none of these. ANSWER DOWNLOAD EXAMIANS APP
Power Systems The essential requirement(s) for power plants to be operated as peak load plants are All of these Quick response to load variation. Low capital cost. Capability of quick starts. All of these Quick response to load variation. Low capital cost. Capability of quick starts. 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? 0.144∠90° A/phase 1.144∠90° A/phase 0.512∠90° A/phase 0.344∠90° A/phase 0.144∠90° A/phase 1.144∠90° A/phase 0.512∠90° A/phase 0.344∠90° A/phase ANSWER DOWNLOAD EXAMIANS APP
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