Power Systems A sort line with R/X ratio 1, the zero regulation is obtained when the power factor of the load is 0.5 unity 0.707 leading 0 leading 0.5 unity 0.707 leading 0 leading ANSWER DOWNLOAD EXAMIANS APP
Power Systems In a three-phase system, when the loads are perfectly balanced, the neutral current is one - third of minimum. zero. two - thirds of maximum. one - third of maximum. one - third of minimum. zero. two - thirds of maximum. one - third of maximum. ANSWER DOWNLOAD EXAMIANS APP
Power Systems Where the voltage is high and current to be interrupted is low, Which of following the breaker is preferable? Air blast CB. Oil CB. Vacuum CB. Any of these. Air blast CB. Oil CB. Vacuum CB. Any of these. ANSWER DOWNLOAD EXAMIANS APP
Power Systems A thermal power station needs space less than that required by the diesel power station of same output. less than that required by a gas turbine power plant of same output. less than that required by atomic power station of the same output. less than that required by hydro-power station of same capacity. less than that required by the diesel power station of same output. less than that required by a gas turbine power plant of same output. less than that required by atomic power station of the same output. less than that required by hydro-power station of same capacity. ANSWER DOWNLOAD EXAMIANS APP
Power Systems A transmission line has self and mutual impedances of 0.8 pu and 0.2 pu. Find the positive, negative and zero sequence impedances respectively? 0.6, 0.8 and 1.2 pu 0.8, 0.6 and 1.2 pu 0.6, 0.6 and 1.2 pu 0.8, 0.8 and 1.2 pu 0.6, 0.8 and 1.2 pu 0.8, 0.6 and 1.2 pu 0.6, 0.6 and 1.2 pu 0.8, 0.8 and 1.2 pu ANSWER DOWNLOAD EXAMIANS APP
Power Systems When a neutral point of 3 - Φ system is directly connected to earth then it has what type of grounding? Reactance. Resistance. Solid. Peterson coil. Reactance. Resistance. Solid. Peterson coil. ANSWER DOWNLOAD EXAMIANS APP