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