Power Systems A three phase, 33 kV oil circuit breaker is rated 1200 A, 2000 MVA, 3 secs. The symmetrical breaking current is 45 kA. 35 kA. 50 kA. 55 kA. 45 kA. 35 kA. 50 kA. 55 kA. ANSWER DOWNLOAD EXAMIANS APP
Power Systems Skin effect depends on conductivity relative permeability All of these frequency conductivity relative permeability All of these frequency 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? 0.75. 1.05. 0.90. 1.20. 0.75. 1.05. 0.90. 1.20. 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? 2 mH 15.9 mH 15.9 H 2 H 2 mH 15.9 mH 15.9 H 2 H ANSWER DOWNLOAD EXAMIANS APP
Power Systems In a 4 bus,4×4 Y bus matrix the number of non zero elements are 12. Find the number of transmission lines? 8 2 5 4 8 2 5 4 ANSWER DOWNLOAD EXAMIANS APP
Power Systems Based on the discharge, Kaplan turbine will discharge >10000 lpm 1000 lpm >10000 lpm 1000 lpm ANSWER DOWNLOAD EXAMIANS APP
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