Power Systems Which of the following represents the transmission or reflection coefficient of voltage Tv? (Zl = Surge impedance of load, Zs = Surge impedance of line) 2Zs/(Zs + Zl) (Zl - Zs)/(Zs + Zl) (Zs - Zl)/(Zs + Zl) 2Zl/(Zs + Zl) 2Zs/(Zs + Zl) (Zl - Zs)/(Zs + Zl) (Zs - Zl)/(Zs + Zl) 2Zl/(Zs + Zl) ANSWER DOWNLOAD EXAMIANS APP
Power Systems Which type of connection is employed for current transformers for the protection of star- delta connected 3-phase transformer? star-star delta-delta delta-star star-delta star-star delta-delta delta-star star-delta ANSWER DOWNLOAD EXAMIANS APP
Power Systems A transmission line has surge impedance of 400 Ω, operating at Vs = Vr = 400 kV line is compensated with a shunt capacitance of 30%. Find the surge impedance loading with compensation? 400 MW 386 MW 478 MW 456 MW 400 MW 386 MW 478 MW 456 MW ANSWER DOWNLOAD EXAMIANS APP
Power Systems A transmission line is compensated with shunt capacitance Csh. If the uncompensated transmission line surge impedance is Zs, then find the new surge impedance Zn after shunt compensation? √(1 + Kcsh)/Zs All of these Zs*√(1 + Kcsh) Zs/√(1 + Kcsh) √(1 + Kcsh)/Zs All of these Zs*√(1 + Kcsh) Zs/√(1 + Kcsh) ANSWER DOWNLOAD EXAMIANS APP
Power Systems For n bus power system size of Y bus matrix is (n-2)×(n-2) (n-1)×(n-1) n×n (n-1)×(n-2) (n-2)×(n-2) (n-1)×(n-1) n×n (n-1)×(n-2) ANSWER DOWNLOAD EXAMIANS APP
Power Systems Stock bridge dampers are used in case hill areas to over come the which problem? increase string efficiency increase power factor unequal ice loading All of these increase string efficiency increase power factor unequal ice loading All of these ANSWER DOWNLOAD EXAMIANS APP
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