Power Systems When a neutral point of 3 - Φ system is directly connected to earth then it has what type of grounding? Solid. Reactance. Resistance. Peterson coil. Solid. Reactance. Resistance. Peterson coil. 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 Power transmission lines are transposed to reduce proximity effect ferranti effect radio interference skin effect proximity effect ferranti effect radio interference skin effect ANSWER DOWNLOAD EXAMIANS APP
Power Systems Offset mho relay is used for the protection of equipment when either 1 or 2 failure of prime mover of the generator loss of excitation of the generator None of these either 1 or 2 failure of prime mover of the generator loss of excitation of the generator None of these ANSWER DOWNLOAD EXAMIANS APP
Power Systems A string insulator has 4 units. The voltage across the bottom most unit is 33.33% of total voltage. Its string efficiency is 75% 33.33% 25% 66.66% 75% 33.33% 25% 66.66% ANSWER DOWNLOAD EXAMIANS APP
Power Systems A CANDU reactor uses highly enriched uranium as fuel and water as moderator and coolant. enriched uranium as fuel and ordinary water as moderator and cooler. only fertile materials. natural uranium as fuel and heavy water as moderator and coolant. highly enriched uranium as fuel and water as moderator and coolant. enriched uranium as fuel and ordinary water as moderator and cooler. only fertile materials. natural uranium as fuel and heavy water as moderator and coolant. ANSWER DOWNLOAD EXAMIANS APP