Power Systems A 3-phase, 110 kV coaxial XLPE insulated power cable delivering power at 50 Hz, has a capacitance of 125 nF/km. If the dielectric loss tangent of XLPE is 2*10^-4, then dielcetric power loss in this cable in W/km/phase is 35.45 31.7 38.6 23.9 35.45 31.7 38.6 23.9 ANSWER DOWNLOAD EXAMIANS APP
Power Systems Which of the following circuit breakers produce least arc energy? Air break CB. Minimum oil CB. Air blast CB. Plain oil CB. Air break CB. Minimum oil CB. Air blast CB. Plain oil CB. ANSWER DOWNLOAD EXAMIANS APP
Power Systems Three generators rated 100 MVA, 11 kV have an impedance of 0.15 pu each. If in the same plant, these generators are being replaced by a single equivalent generator, the effective impedance of equivalent generator will be 0.45 pu 0.05 pu 0.15 pu 0.25 pu 0.45 pu 0.05 pu 0.15 pu 0.25 pu ANSWER DOWNLOAD EXAMIANS APP
Power Systems If, for a given alternator in economic operation mode, the incremental cost is given by (0.012 P + 8) Rs/MWh, dPL/dP = 0.2 and plant λ = 25, then power generation is 750 MW 1500 MW 1250 MW 1000 MW 750 MW 1500 MW 1250 MW 1000 MW ANSWER DOWNLOAD EXAMIANS APP
Power Systems Keeping in view the cost and overall effectiveness, the following circuit breaker is best suited for capacitor bank switching? SF6 CB. Vacuum CB. Air blast CB. Oil CB. SF6 CB. Vacuum CB. Air blast CB. Oil CB. ANSWER DOWNLOAD EXAMIANS APP
Power Systems MCB stands for minimum capacity breaker. molded circuit breaker. maximum capacity breaker. miniature circuit breaker. minimum capacity breaker. molded circuit breaker. maximum capacity breaker. miniature circuit breaker. ANSWER DOWNLOAD EXAMIANS APP