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 456 MW 478 MW 400 MW 386 MW 456 MW 478 MW ANSWER DOWNLOAD EXAMIANS APP
Power Systems The line currents of 3-phase supply are: IR = 3 + j 5 A IY =2 + j 2 A IB = -2 - j 1 A The zero sequence current will be 5 + j 7 A 1 + j 4 A -2 - j 1 A 1 + j 2 A 5 + j 7 A 1 + j 4 A -2 - j 1 A 1 + j 2 A ANSWER DOWNLOAD EXAMIANS APP
Power Systems For 132 kV system, the reactance and capacitance up to the location of the CB is 3 Ω and 0.015 μF respectively. The maximum value of RRRV is 9.01 kV / μs. 2.0 kV / μs. 10.01 kV / μs. 12.2 kV / μs. 9.01 kV / μs. 2.0 kV / μs. 10.01 kV / μs. 12.2 kV / μs. 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? delta-star delta-delta star-star star-delta delta-star delta-delta star-star star-delta ANSWER DOWNLOAD EXAMIANS APP
Power Systems What should be the minimum depth (in metre)of cable trench to dug for laying of 1.1 kV? 1.05. 0.75. 1.20. 0.90. 1.05. 0.75. 1.20. 0.90. ANSWER DOWNLOAD EXAMIANS APP
Power Systems A 20 MVA generator has inertia constant of 0.5 pu. Find new value for 50 MVA base? 0.5 pu 0.4 pu 0.2 pu 0.1 pu 0.5 pu 0.4 pu 0.2 pu 0.1 pu ANSWER DOWNLOAD EXAMIANS APP
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