Power Systems At slack bus, which one of the following combinations of variables is not specified? Q and V P and Q P and V V and δ Q and V P and Q P and V V and δ ANSWER DOWNLOAD EXAMIANS APP
Power Systems Ferranti effect will not occur in which of the following transmission lines short transmission lines long transmission lines All of these medium transmission lines short transmission lines long transmission lines All of these medium transmission lines 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 4.65 Ω / phase. 2.26 Ω / phase. 8.06 Ω / phase. 6.06 Ω / phase. 4.65 Ω / phase. 2.26 Ω / phase. 8.06 Ω / phase. 6.06 Ω / phase. ANSWER DOWNLOAD EXAMIANS APP
Power Systems A power station has a maximum demand of 15 MW. The plant capacity is 20 MW. Find the reserve capacity of the plant? 10 MW 20 MW 15 MW 5 MW 10 MW 20 MW 15 MW 5 MW ANSWER DOWNLOAD EXAMIANS APP
Power Systems A generator has reactances of sub transient (X")= 0.5 pu, transient (X') = 0.8 pu and synchronous reactance (X) = 5 pu. The voltages at these reactances are 1.2 V, 1.1 V and 1 V respectively. Find the corresponding sub transient fault current in pu? 3.975 pu 1.375 pu 0.2 pu 2.4 pu 3.975 pu 1.375 pu 0.2 pu 2.4 pu ANSWER DOWNLOAD EXAMIANS APP
Power Systems A generator has a rating of 10 MVA, 5 kV has a reactance of 0.02 pu. Find the reactance at a new base values of 50 MVA, 10 kV? 0.25 0.025 0.05 0.02 0.25 0.025 0.05 0.02 ANSWER DOWNLOAD EXAMIANS APP
EXAMIANS