Electrical Machines An alternator is feeding an infinite busbar. Its prime mover is suddenly shutdown. The alternator will continue to work as alternator but the direction of rotation will reverse. start working as induction motor. continue to work as synchronous motor with same direction of rotation. come to stand still. continue to work as alternator but the direction of rotation will reverse. start working as induction motor. continue to work as synchronous motor with same direction of rotation. come to stand still. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines Two DC generators having equal open-circuit emfs but slight different load characteristics are operating in parallel, then None of these the machine with more drooping characteristic will supply more load. the machine will share load equally. the machine with more drooping characteristic will supply less load. None of these the machine with more drooping characteristic will supply more load. the machine will share load equally. the machine with more drooping characteristic will supply less load. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines The heat generated in the transformer is dissipated mainly by All of these radiation. convection. conduction. All of these radiation. convection. conduction. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines A 4 pole 50 Hz induction motor is running at 1470 rpm. What is the slip value? 0.2 0.04 0.4 0.02 0.2 0.04 0.4 0.02 ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines A 3-phase, 50Hz, 4 pole induction motor is running at 1440 rpm and rotor input power is 2KW. Find the rotor output power? 1820W 1920W 2000W 1450W 1820W 1920W 2000W 1450W ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines Which of the following is not a necessary condition to be satisfied for synchronising an incoming alternator to an already operating alternator? same voltage magnitude same phase sequence same prime mover speed same frequency same voltage magnitude same phase sequence same prime mover speed same frequency ANSWER DOWNLOAD EXAMIANS APP
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