Power Systems For large plants of capacity for more than 15 MW, what type of cooling is used Air. Hydrogen. Liquid. Water. Air. Hydrogen. Liquid. Water. ANSWER DOWNLOAD EXAMIANS APP
Power Systems If R = 84 ohm/Km, G = 10-6 mho/Km, H = 0.01 H/Km, C = 0.061 μ F/Km and frequency = 1000 Hz, then what is the value of propagation constant of the transmission line None of them. 0.018 per Km. 0.01 + j 0.02 per Km. 0.09 + j 0.018 per Km. None of them. 0.018 per Km. 0.01 + j 0.02 per Km. 0.09 + j 0.018 per Km. ANSWER DOWNLOAD EXAMIANS APP
Power Systems Two generating stations delivering a powers of P1 = 150 MW, P2 =100 MW and the B coefficients are B11 = 0.005, B22 = 0.002, B12=B21= -0.001. Find the transmission line losses? 105.2 102.5 95.5 85.5 105.2 102.5 95.5 85.5 ANSWER DOWNLOAD EXAMIANS APP
Power Systems Proximity effect depends on frequency relative permeability All of these distance between the conductors frequency relative permeability All of these distance between the conductors ANSWER DOWNLOAD EXAMIANS APP
Power Systems How to find the total number of strands (N) when number of layers (x) are given Total number of strands N = 3x² + 3x + 1 Total number of strands N = 3x² + 3x - 1 Total number of strands N = 3x² - 3x + 1 Total number of strands N = 3x² - 3x - 1 Total number of strands N = 3x² + 3x + 1 Total number of strands N = 3x² + 3x - 1 Total number of strands N = 3x² - 3x + 1 Total number of strands N = 3x² - 3x - 1 ANSWER DOWNLOAD EXAMIANS APP
Power Systems An over current relay, having a current setting of 125% connected to a supply circuit through a current transformer of ratio 400/5. The pick up value is 6.25 A 15 A 10 A 12.5 A 6.25 A 15 A 10 A 12.5 A ANSWER DOWNLOAD EXAMIANS APP
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