Power Systems In which of the following given faults, all the sequence currents are equal? LLL LL LG LLG LLL LL LG LLG ANSWER DOWNLOAD EXAMIANS APP
Power Systems In a power system with negligible resistance, the fault current at a point is 8.00 pu. The series reactance is to be included at the fault point to limit the short circuit. current to 5.00 pu is 0.200 pu. 0.075 pu. 0.125 pu. 3.000 pu. 0.200 pu. 0.075 pu. 0.125 pu. 3.000 pu. ANSWER DOWNLOAD EXAMIANS APP
Power Systems Pin insulators are used up to 11 kV 120 kV any voltage level 33 kV 11 kV 120 kV any voltage level 33 kV ANSWER DOWNLOAD EXAMIANS APP
Power Systems The skin effect of conductor will increase when resistivity decrease diameter decrease All of these frequency decrease resistivity decrease diameter decrease All of these frequency decrease ANSWER DOWNLOAD EXAMIANS APP
Power Systems The area under a flow duration curve represents maximum rate of run-off during the period. total quantity of run-off during that period. total of units of energy available. total power available. maximum rate of run-off during the period. total quantity of run-off during that period. total of units of energy available. total power available. ANSWER DOWNLOAD EXAMIANS APP
Power Systems Which of the following statements is/are true? The elements of each row of a Y bus matrix for load flow studies in power system add up to zero always if the mutual couplings between transmission lines are absent if both 2 and 3 are satisfied if the shunt admittances at the buses are ignored always if the mutual couplings between transmission lines are absent if both 2 and 3 are satisfied if the shunt admittances at the buses are ignored ANSWER DOWNLOAD EXAMIANS APP