Power Systems An over current relay, having a current setting of 125% connected to a supply circuit through a current transformer of ratio 400/5. The pick up value is 6.25 A 10 A 15 A 12.5 A 6.25 A 10 A 15 A 12.5 A ANSWER DOWNLOAD EXAMIANS APP
Power Systems Advantages of per unit system is/are It has units for all quantities Need of transformation ratio No units for any quantity All of these It has units for all quantities Need of transformation ratio No units for any quantity All of these ANSWER DOWNLOAD EXAMIANS APP
Power Systems Find the number of insulator discs required in string insulator, if operating voltage is 220 kV and maximum voltage of each disc is 11 kV? 10 13 20 21 10 13 20 21 ANSWER DOWNLOAD EXAMIANS APP
Power Systems Breaking current is a ------------------ value? any of the above average RMS maximum any of the above average RMS maximum ANSWER DOWNLOAD EXAMIANS APP
Power Systems The ground capacitance existing between transmission line and ground is 4µF. Find the inductive reactance of the peterson coil for compensation of arcing grounds? 855.26 Ω 265.25 Ω 625.35 Ω 0.844 Ω 855.26 Ω 265.25 Ω 625.35 Ω 0.844 Ω 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. one - third of maximum. zero. two - thirds of maximum. one - third of minimum. one - third of maximum. zero. two - thirds of maximum. ANSWER DOWNLOAD EXAMIANS APP
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