Power Systems Which of the following relays is/are unit protection relays? Buccholz relays both 1 and 2 over current relays Differential relays Buccholz relays both 1 and 2 over current relays Differential relays ANSWER DOWNLOAD EXAMIANS APP
Power Systems The characteristic impedance of a transmission line is Directly proportional to square root of its length. Inversely proportional to square root of its length. Independent of its length. Directly proportional to its length. Directly proportional to square root of its length. Inversely proportional to square root of its length. Independent of its length. Directly proportional to its length. 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? 13 10 20 21 13 10 20 21 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 0.125 pu. 0.075 pu. 3.000 pu. 0.200 pu. 0.125 pu. 0.075 pu. 3.000 pu. 0.200 pu. ANSWER DOWNLOAD EXAMIANS APP
Power Systems The rating of fuse wire is always expressed in ampere-hours. kWh. amperes. ampere-volts. ampere-hours. kWh. amperes. ampere-volts. ANSWER DOWNLOAD EXAMIANS APP
Power Systems A generator has a rating of 10 MVA, 5 kV has a reactance of 0.02 pu. Find the reactance at a new base values of 50 MVA, 10 kV? 0.25 0.05 0.02 0.025 0.25 0.05 0.02 0.025 ANSWER DOWNLOAD EXAMIANS APP
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