GETCO Exam Paper (22-07-2015) Critical clearing time of a fault in a power system is related to Short circuit limit Reactive power limit Transient stability limit Steady state limit Short circuit limit Reactive power limit Transient stability limit Steady state limit ANSWER DOWNLOAD EXAMIANS APP
GETCO Exam Paper (22-07-2015) What is the surge impedance loading of 400 kV line with surge impedance given as 160 Ω 400 MW 1000 kW 250 MW 1000 MW 400 MW 1000 kW 250 MW 1000 MW ANSWER EXPLANATION DOWNLOAD EXAMIANS APP SIL = (kV)²/Z₀
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 3 + j6 3 - j6 9 + j10 1 + j2 3 + j6 3 - j6 9 + j10 1 + j2 ANSWER DOWNLOAD EXAMIANS APP
GETCO Exam Paper (22-07-2015) In sub stations for making and breaking of load current isolators are used relays are used load interrupter switches are used circuit breakers are used isolators are used relays are used load interrupter switches are used circuit breakers are used ANSWER DOWNLOAD EXAMIANS APP
GETCO Exam Paper (22-07-2015) The relay which is most sensitive to power swings (mal operation) is Impedance Relay Over current Relay Reactance Relay Mho Relay Impedance Relay Over current Relay Reactance Relay Mho Relay ANSWER DOWNLOAD EXAMIANS APP
GETCO Exam Paper (22-07-2015) The surge impedance loading of the line will _____ if the length of the line is double become half remains same four times double become half remains same four times double ANSWER EXPLANATION DOWNLOAD EXAMIANS APP Surge impedance is independent of length of the line
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