Power Systems If the fault current is 2000 A, the relay setting is 50% and CT ratio is 400 : 5, then plug setting multiplier will be 15. 25. 50. 10. 15. 25. 50. 10. ANSWER DOWNLOAD EXAMIANS APP
Power Systems If the inertia constant H = 10 MJ/MVA for a 50 MVA generator, the stored energy is 50 MJ 500 MJ 10 MJ 5 MJ 50 MJ 500 MJ 10 MJ 5 MJ ANSWER DOWNLOAD EXAMIANS APP
Power Systems Which statement is not correct for the transmission line parameter R, L, G and C The line parameter R,L,G and C are uniformly distributed along the entire length of the line C. For each line, the conductors are characterized by σ c, μ c, εo = ε c and the homog G = I/R. R is the AC resistance per unit length of conductor C. At high frequencies at which most of communication system operate the internal inductance of the conductor is neglected. The line parameter R,L,G and C are uniformly distributed along the entire length of the line C. For each line, the conductors are characterized by σ c, μ c, εo = ε c and the homog G = I/R. R is the AC resistance per unit length of conductor C. At high frequencies at which most of communication system operate the internal inductance of the conductor is neglected. ANSWER DOWNLOAD EXAMIANS APP
Power Systems The arc voltage produced in an AC circuit breaker is always in phase opposition with the arc current. lagging the arc current by 90°. leading the arc current by 90°. in phase with the arc current. in phase opposition with the arc current. lagging the arc current by 90°. leading the arc current by 90°. in phase with the arc current. 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 0.075 pu. 0.200 pu. 0.125 pu. 3.000 pu. 0.075 pu. 0.200 pu. 0.125 pu. 3.000 pu. ANSWER DOWNLOAD EXAMIANS APP
Power Systems The sequence components of the fault current are as follows : Ipositive = j1.5 pu, Inegative = − j0.5 pu, Izero = − j pu Which fault is this? LLLG. LL. LG. LLG. LLLG. LL. LG. LLG. ANSWER DOWNLOAD EXAMIANS APP
EXAMIANS