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 Two identical synchronous machines having same inertia constant are connected in parallel and swinging together. The effective inertia constant is 4 MJ/MVA. Then each machine has inertia constant of 8 MJ/MVA 16 MJ/MVA 4 MJ/MVA 2 MJ/MVA 8 MJ/MVA 16 MJ/MVA 4 MJ/MVA 2 MJ/MVA ANSWER DOWNLOAD EXAMIANS APP
Power Systems Which of following is a medium and low head turbines None of above. Pelton and Kaplan turbines. Francis and Kaplan turbines. Kaplan and Francis turbines. None of above. Pelton and Kaplan turbines. Francis and Kaplan turbines. Kaplan and Francis turbines. ANSWER DOWNLOAD EXAMIANS APP
Power Systems Condition for maximum voltage regulation cosφ = R/X tanφ = R/X tanφ = X/R cosφ = X/R cosφ = R/X tanφ = R/X tanφ = X/R cosφ = X/R ANSWER DOWNLOAD EXAMIANS APP
Power Systems For a fixed value of complex power flow in a transmission line having a sending end voltage V, the real power loss will be proportional to V2. V. 1 / V2. 1 / V. V2. V. 1 / V2. 1 / V. ANSWER DOWNLOAD EXAMIANS APP
Power Systems A 100 Km long transmission line is loaded at 110 kV. If the loss of line is 5 MW and the load is 150 VA the resistance of the line is 6.06 Ω / phase. 2.26 Ω / phase. 8.06 Ω / phase. 4.65 Ω / phase. 6.06 Ω / phase. 2.26 Ω / phase. 8.06 Ω / phase. 4.65 Ω / phase. ANSWER DOWNLOAD EXAMIANS APP
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