Power Systems Which of the following is/are the disadvantages of phase modifiers? Initial cost of synchronous phase modifier is higher It consumes both active and reactive power It requires more maintenance because of running equipment All of these Initial cost of synchronous phase modifier is higher It consumes both active and reactive power It requires more maintenance because of running equipment All of these ANSWER DOWNLOAD EXAMIANS APP
Power Systems A transmission line is compensated with shunt capacitance Csh. After shunt compensation surge impedance loading will increases remains unaffected decreases None of these increases remains unaffected decreases None of these ANSWER DOWNLOAD EXAMIANS APP
Power Systems Lightning arresters are made up of which material? copper silicon oxide any of the above silver copper silicon oxide any of the above silver ANSWER DOWNLOAD EXAMIANS APP
Power Systems A power system consists of 300 buses out of which 20 buses are generator buses, 25 buses are the ones with reactive power support buses and 15 buses are ones with fixed shunt capacitors. All the other buses are load buses. It is proposed to perform a load flow analysis for the system using Newton-Raphson Jacobian matrix is 540×540 553×553 554×554 555×555 540×540 553×553 554×554 555×555 ANSWER DOWNLOAD EXAMIANS APP
Power Systems MCB stands for maximum capacity breaker. molded circuit breaker. minimum capacity breaker. miniature circuit breaker. maximum capacity breaker. molded circuit breaker. minimum capacity breaker. miniature circuit breaker. ANSWER DOWNLOAD EXAMIANS APP
Power Systems Positive, negative and zero sequence impedances of line are 2,2 and 5 pu respectively. Find self and mutual impedances respectively? 2 and 5 pu 1 and 3 pu 2 and 2 pu 3 and 1 pu 2 and 5 pu 1 and 3 pu 2 and 2 pu 3 and 1 pu ANSWER DOWNLOAD EXAMIANS APP
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