Power Systems Which of the following relays is/are unit protection relays? Buccholz relays over current relays both 1 and 2 Differential relays Buccholz relays over current relays both 1 and 2 Differential relays ANSWER DOWNLOAD EXAMIANS APP
Power Systems A transmission line has impedance of (0.005 + j0.05) pu. Find the line at which maximum value of negative DC off set current is produced, if it is applied with Vm cosωt? 2.63 msec 4.68 msec 9.68 1.47 msec 2.63 msec 4.68 msec 9.68 1.47 msec ANSWER DOWNLOAD EXAMIANS APP
Power Systems By using guard ring in a transmission line, its string efficiency increase decrease remains unaffected None of these increase decrease remains unaffected None of these ANSWER DOWNLOAD EXAMIANS APP
Power Systems In a nuclear reactor, chain reactor is controlled by introducing graphite rods. iron rods. brass rods. cadmium rods. graphite rods. iron rods. brass rods. cadmium rods. ANSWER DOWNLOAD EXAMIANS APP
Power Systems Mho relay is used for protection of medium lines. short lines. none of these. long lines. medium lines. short lines. none of these. long lines. ANSWER DOWNLOAD EXAMIANS APP
Power Systems Advantages of higher transmission voltage is/are Area of cross section and volume of the conductor is reduced All of these Power transfer capability of the transmission line is increased Transmission line losses are reduced Area of cross section and volume of the conductor is reduced All of these Power transfer capability of the transmission line is increased Transmission line losses are reduced ANSWER DOWNLOAD EXAMIANS APP
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