Power Systems Mho relay is used for protection of long lines. medium lines. short lines. none of these. long lines. medium lines. short lines. none of these. ANSWER DOWNLOAD EXAMIANS APP
Power Systems Condition for maximum voltage regulation cosφ = X/R tanφ = R/X cosφ = R/X tanφ = X/R cosφ = X/R tanφ = R/X cosφ = R/X tanφ = X/R ANSWER DOWNLOAD EXAMIANS APP
Power Systems The positive, negative and zero sequence per unit impedance of two generators connected in parallel are X1 = 0.12 pu, X2 = 0.096 pu and X0 = 0.036 pu. For LG fault at generator terminals (with 1 pu voltage) the positive sequence current will be 10.936 pu 8.936 pu 9.936 pu 7.936 pu 10.936 pu 8.936 pu 9.936 pu 7.936 pu ANSWER DOWNLOAD EXAMIANS APP
Power Systems Which of the following circuit breakers produce least arc energy? Minimum oil CB. Air break CB. Air blast CB. Plain oil CB. Minimum oil CB. Air break CB. Air blast CB. Plain oil CB. ANSWER DOWNLOAD EXAMIANS APP
Power Systems Maximum power transfer capability of transmission line can be increased by All of these Using series capacitance Using bundled conductors Parallel transmission lines All of these Using series capacitance Using bundled conductors Parallel transmission lines ANSWER DOWNLOAD EXAMIANS APP
Power Systems For 800 MJ stored energy in the rotor at synchronous speed, what is the inertia constant H for a 50 Hz, four pole turbo generator rated 100 MVA, 11 kV? 4 MJ/MVA 6 MJ/MVA 8 MJ/MVA 2 MJ/MVA 4 MJ/MVA 6 MJ/MVA 8 MJ/MVA 2 MJ/MVA ANSWER DOWNLOAD EXAMIANS APP
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