Power Systems Which of the following represents the sag(S) of a transmission line? S = wl²/2T S = wl²/4T S = wl²/16T S = wl²/8T S = wl²/2T S = wl²/4T S = wl²/16T S = wl²/8T ANSWER DOWNLOAD EXAMIANS APP
Power Systems Which of the following is/are the advantages of synchronous phase modifier over the shunt compensation? initial cost is low single unit can be used as both capacitance and inductor by adjusting the excitation both 1 and 2 smooth voltage regulation is possible by controlling excitation initial cost is low single unit can be used as both capacitance and inductor by adjusting the excitation both 1 and 2 smooth voltage regulation is possible by controlling excitation ANSWER DOWNLOAD EXAMIANS APP
Power Systems In a two plant system, the load is connected to plant number 2. The loss coefficients are B11 is non zero,B22 = B12 = 0 B11,B12 are non zero ,B22 = 0 B11,B22 are non zero,B12 = 0 B11,B22,B12 are non zeros B11 is non zero,B22 = B12 = 0 B11,B12 are non zero ,B22 = 0 B11,B22 are non zero,B12 = 0 B11,B22,B12 are non zeros ANSWER DOWNLOAD EXAMIANS APP
Power Systems Four identical alternators each are rated for 20 MVA, 11 KV having a subtransient reactance of 16% are working in parallel. The short circuit level at the busbar is 400 MVA 125 MVA 100 MVA 500 MVA 400 MVA 125 MVA 100 MVA 500 MVA ANSWER DOWNLOAD EXAMIANS APP
Power Systems If, for a given alternator in economic operation mode, the incremental cost is given by (0.012 P + 8) Rs/MWh, dPL/dP = 0.2 and plant λ = 25, then power generation is 1000 MW 750 MW 1250 MW 1500 MW 1000 MW 750 MW 1250 MW 1500 MW ANSWER DOWNLOAD EXAMIANS APP
Power Systems Consider a long, two wire line composed of solid round conductors. The radius of both conductors is 0.25 cm and distance between their centers is 100 cm. If this distance is doubled, then the inductance per unit length. Halves. Doubled. Decrease but does not halves. Increase but does not doubled. Halves. Doubled. Decrease but does not halves. Increase but does not doubled. ANSWER DOWNLOAD EXAMIANS APP
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