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 16 MJ/MVA 2 MJ/MVA 8 MJ/MVA 4 MJ/MVA 16 MJ/MVA 2 MJ/MVA 8 MJ/MVA 4 MJ/MVA ANSWER DOWNLOAD EXAMIANS APP
Power Systems Maximum power capacity of a transmission line can be increased by increasing voltage level nether 1 nor 2 decreasing reactance value either 1 or 2 increasing voltage level nether 1 nor 2 decreasing reactance value either 1 or 2 ANSWER DOWNLOAD EXAMIANS APP
Power Systems Which of the following is/are the disadvantages of phase modifiers? It requires more maintenance because of running equipment It consumes both active and reactive power Initial cost of synchronous phase modifier is higher All of these It requires more maintenance because of running equipment It consumes both active and reactive power Initial cost of synchronous phase modifier is higher All of these ANSWER DOWNLOAD EXAMIANS APP
Power Systems In thermal power stations, economiser will reduce the heat reduce the thermal efficiency both 2 and 3 increase the thermal efficiency reduce the heat reduce the thermal efficiency both 2 and 3 increase the thermal efficiency ANSWER DOWNLOAD EXAMIANS APP
Power Systems Stock bridge dampers are used in case hill areas to over come the which problem? unequal ice loading All of these increase power factor increase string efficiency unequal ice loading All of these increase power factor increase string efficiency ANSWER DOWNLOAD EXAMIANS APP
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