GETCO Exam Paper (22-07-2015) The relay which is most sensitive to power swings (mal operation) is Mho Relay Over current Relay Reactance Relay Impedance Relay Mho Relay Over current Relay Reactance Relay Impedance Relay ANSWER DOWNLOAD EXAMIANS APP
GETCO Exam Paper (22-07-2015) The line current in a three phase unbalanced load are Ir= 4+j6, Ib= 2-j2 and Ic= -3+j2, then zero sequence component of current will be 9 + j10 3 + j6 1 + j2 3 - j6 9 + j10 3 + j6 1 + j2 3 - j6 ANSWER DOWNLOAD EXAMIANS APP
GETCO Exam Paper (22-07-2015) In rotating electrical machines, the insulation temperature limit for class B type is 180˚C 150˚C 105˚C 130˚C 180˚C 150˚C 105˚C 130˚C ANSWER EXPLANATION DOWNLOAD EXAMIANS APP insulation Class and temperature limit(in ˚C) is given below:Y - 90A- 105E- 120B-130F-155H-180C- above 180
GETCO Exam Paper (22-07-2015) In sub stations for making and breaking of load current circuit breakers are used relays are used isolators are used load interrupter switches are used circuit breakers are used relays are used isolators are used load interrupter switches are used ANSWER DOWNLOAD EXAMIANS APP
GETCO Exam Paper (22-07-2015) Critical clearing time of a fault in a power system is related to Short circuit limit Transient stability limit Steady state limit Reactive power limit Short circuit limit Transient stability limit Steady state limit Reactive power limit ANSWER DOWNLOAD EXAMIANS APP
GETCO Exam Paper (22-07-2015) The area under the load duration curve represents energy generated in the period considered base load of the system Maximum demand of the power station average load of the system energy generated in the period considered base load of the system Maximum demand of the power station average load of the system ANSWER DOWNLOAD EXAMIANS APP
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