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. 55 kA. 35 kA. 50 kA. 45 kA. 55 kA. 35 kA. 50 kA. ANSWER DOWNLOAD EXAMIANS APP
Power Systems Thermal shielding is provided to protected the operating personal from exposure to radiations. absorb the fast neutron. prevent the reactor wall from getting heated. All of these protected the operating personal from exposure to radiations. absorb the fast neutron. prevent the reactor wall from getting heated. All of these ANSWER DOWNLOAD EXAMIANS APP
Power Systems Which of the following decides the insulation level of 400 kV, EHV line? lighting voltage radio interference skin effect switching over voltage lighting voltage radio interference skin effect switching over voltage ANSWER DOWNLOAD EXAMIANS APP
Power Systems In hydroelectric power plants operating cost is low and initial cost is high. operating cost is high and initial cost is low. both operating and initial cost are high. both operating and initial cost are low. operating cost is low and initial cost is high. operating cost is high and initial cost is low. both operating and initial cost are high. both operating and initial cost are low. ANSWER DOWNLOAD EXAMIANS APP
Power Systems Which of the following is/are the disadvantages of phase modifiers? It consumes both active and reactive power Initial cost of synchronous phase modifier is higher It requires more maintenance because of running equipment All of these It consumes both active and reactive power Initial cost of synchronous phase modifier is higher It requires more maintenance because of running equipment All of these ANSWER DOWNLOAD EXAMIANS APP
Power Systems In a transmission line the insulators to be used at the dead end or sharp curves are any of the above pin type insulator suspension type strain type any of the above pin type insulator suspension type strain type ANSWER DOWNLOAD EXAMIANS APP
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