Power Systems On what factor does the performance of a circuit breaker depend? Both A and C. None of these. Breaking speed. Critical length of breaking. Both A and C. None of these. Breaking speed. Critical length of breaking. ANSWER DOWNLOAD EXAMIANS APP
Power Systems A transmission line has surge impedance of 400 Ω, operating at Vs = Vr = 400 kV line is compensated with a shunt capacitance of 30%. The line is connected to a generator delivering 200 MW. Find the load angle with out and with compensation respectively? 26° and 30° 45° and 26° 30° and 45° 30° and 26° 26° and 30° 45° and 26° 30° and 45° 30° and 26° ANSWER DOWNLOAD EXAMIANS APP
Power Systems Telecommunication lines are transposed to reduce the voltage level All of these radio interference in communication lines efficiency voltage level All of these radio interference in communication lines efficiency ANSWER DOWNLOAD EXAMIANS APP
Power Systems An unloaded generator with a pre-fault voltage 1 pu has the following sequence impedance: Z0 = j 0.15 pu, Z1 = Z2 = j 0.25 pu The neutral is grounded with a reactance of 0.05 pu. The fault current in pu for single line to ground fault is 2.5 pu 7.25 pu 3.75 pu 4.28 pu 2.5 pu 7.25 pu 3.75 pu 4.28 pu ANSWER DOWNLOAD EXAMIANS APP
Power Systems The positive (Z1), negative (Z2) and zero sequence (Z0) impedances of a transmission line follows the relation (Z1 = Z2) < Z0 Z1 = Z2 = Z0 (Z1 = Z2) > Z0 any of the above (Z1 = Z2) < Z0 Z1 = Z2 = Z0 (Z1 = Z2) > Z0 any of the above ANSWER DOWNLOAD EXAMIANS APP
Power Systems Which of following power plants will take long period in erection and installation Nuclear. Gas turbine. Hydro Power Plant Thermal. Nuclear. Gas turbine. Hydro Power Plant Thermal. ANSWER DOWNLOAD EXAMIANS APP
EXAMIANS