Power Systems When is the ferranti effect on long overhead lines experienced? The power factor is unity The line is heavily loaded The line is lightly loaded The line is fully loaded The power factor is unity The line is heavily loaded The line is lightly loaded The line is fully loaded ANSWER DOWNLOAD EXAMIANS APP
Power Systems A moderator material should have may be any of the above. large atomic mass. None of these small atomic mass. may be any of the above. large atomic mass. None of these small atomic mass. ANSWER DOWNLOAD EXAMIANS APP
Power Systems For loss less line, find the ratio of length to the wave length of a signal for a phase shift of 0.05 radians? 2 × 10-3 7.95 × 10-3 7.95 × 10³ 8 × 10³ 2 × 10-3 7.95 × 10-3 7.95 × 10³ 8 × 10³ ANSWER DOWNLOAD EXAMIANS APP
Power Systems IF the time of operation of a relay for unity TMS is 10 sec then the time of operation for 0.5 TMS is 20 sec. 10 sec. 5 sec. none of these. 20 sec. 10 sec. 5 sec. none of these. ANSWER DOWNLOAD EXAMIANS APP
Power Systems What are the tests performed for oil-filled and gas-filled cables ? Impulse tests. Thermal stability test. All of these. Load cycle tests. Impulse tests. Thermal stability test. All of these. Load cycle tests. 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 7.25 pu 4.28 pu 3.75 pu 2.5 pu 7.25 pu 4.28 pu 3.75 pu 2.5 pu ANSWER DOWNLOAD EXAMIANS APP
EXAMIANS