Power Systems Advantages of shunt compensation is/are smooth voltage regulation is possible by controlling excitation It requires less maintanance All of these single unit can be used as both capacitance and inductor by adjusting the excitation smooth voltage regulation is possible by controlling excitation It requires less maintanance All of these single unit can be used as both capacitance and inductor by adjusting the excitation ANSWER DOWNLOAD EXAMIANS APP
Power Systems A guard ring is used in string type insulator having 3 units to improve string efficiency. Find the capacitance of metal link 2 if pin to earth capacitance of each unit is 1 F? 1 F 4 F 2 F 0.5 F 1 F 4 F 2 F 0.5 F ANSWER DOWNLOAD EXAMIANS APP
Power Systems The value of diversity factor is 0 1 greater than 1 less than 1 0 1 greater than 1 less than 1 ANSWER DOWNLOAD EXAMIANS APP
Power Systems The most suitable circuit breaker for short line fault without switching resistor is SF6 breaker. air blast circuit breaker. oil circuit breaker. none of these. SF6 breaker. air blast circuit breaker. oil circuit breaker. none of these. ANSWER DOWNLOAD EXAMIANS APP
Power Systems A load centre is at an equidistant from the two thermal generating stations G1 and G2. The fuel cost characteristics of the generating stations are given by F1 = a + bP1 + cP²1 F2 = a + b P2 + 2cP²2 Where P1 and P2 are the generation in MW of G1 and G2, respectively. For most economic generation to meet 300 MW of load, P1 and P2 respectively, are 175, 125 100, 200 150, 150 200, 100 175, 125 100, 200 150, 150 200, 100 ANSWER DOWNLOAD EXAMIANS APP
Power Systems An alternator having an induced emf of 1.6 pu is connected to an infinite bus of 1 pu. If the bus bar has reactance of 0.6 pu and alternator has reactance of 0.2 pu, what is the maximum power that can be transferred? 5 pu 2.67 pu 2 pu 6 pu 5 pu 2.67 pu 2 pu 6 pu ANSWER DOWNLOAD EXAMIANS APP
EXAMIANS