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 10 A 15 A 6.25 A 12.5 A 10 A 15 A 6.25 A 12.5 A ANSWER DOWNLOAD EXAMIANS APP
Power Systems The positive (Z1), negative (Z2) and zero sequence (Z0) impedances of a transmission line follows the relation (Z1 = Z2) > Z0 any of the above Z1 = Z2 = Z0 (Z1 = Z2) < Z0 (Z1 = Z2) > Z0 any of the above Z1 = Z2 = Z0 (Z1 = Z2) < Z0 ANSWER DOWNLOAD EXAMIANS APP
Power Systems Buchholz relay is used for protection of transformer. none of these. bus bar. alternator. transformer. none of these. bus bar. alternator. ANSWER DOWNLOAD EXAMIANS APP
Power Systems The unit protection scheme provides back up protection. remote protection. simultaneous protection. primary protection. back up protection. remote protection. simultaneous protection. primary protection. ANSWER DOWNLOAD EXAMIANS APP
Power Systems The function of draft tube is reaction turbine is to all of above. reduce water hammer. increase flow rate of water. convert kinetic energy of water. all of above. reduce water hammer. increase flow rate of water. convert kinetic energy of water. ANSWER DOWNLOAD EXAMIANS APP
Power Systems The most suitable circuit breaker for short line fault without switching resistor is SF6 breaker. oil circuit breaker. air blast circuit breaker. none of these. SF6 breaker. oil circuit breaker. air blast circuit breaker. none of these. ANSWER DOWNLOAD EXAMIANS APP
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