Power Systems A transmission line has impedance of (0.005 + j0.05) pu. Find the line at which maximum value of negative DC off set current is produced, if it is applied with Vm cosωt? 2.63 msec 4.68 msec 9.68 1.47 msec 2.63 msec 4.68 msec 9.68 1.47 msec 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 The function of reflector is to reduce the speed of the neutrons. none of above. bounce back most of the neutrons that escape from the fuel core. stop the chain reaction. reduce the speed of the neutrons. none of above. bounce back most of the neutrons that escape from the fuel core. stop the chain reaction. ANSWER DOWNLOAD EXAMIANS APP
Power Systems The pu parameters for a 500 MVA machine on its own base are: Inertia, H = 20 pu; reactance X = 2 pu. The pu values of inertia and reactance on 100 MVA common base, respectively, are 100, 10 4, 0.4 100, 0.4 4, 10 100, 10 4, 0.4 100, 0.4 4, 10 ANSWER DOWNLOAD EXAMIANS APP
Power Systems Which of the following insulator is practically used for railway crossings? strain insulator pin insulator string insulator All of these strain insulator pin insulator string insulator All of these ANSWER DOWNLOAD EXAMIANS APP
Power Systems In thermal power stations, economiser will reduce the heat increase the thermal efficiency both 2 and 3 reduce the thermal efficiency reduce the heat increase the thermal efficiency both 2 and 3 reduce the thermal efficiency ANSWER DOWNLOAD EXAMIANS APP
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