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 phase sequence same prime mover speed same voltage magnitude same frequency same phase sequence same prime mover speed same voltage magnitude same frequency ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines For a practical synchronous motor the pull out torque will occur when the torque angle is nearly equal to 0°. 45°. 30°. 75°. 0°. 45°. 30°. 75°. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines The effect of ------------------ on main field flux is armature reaction? All of these armature mmf armature current armature flux All of these armature mmf armature current armature flux ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines Armature reaction depends on which of the following? power factor of load both 1 and 2 magnitude of load current None of these power factor of load both 1 and 2 magnitude of load current None of these ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines The no load current in a transformer lags the applied voltage by about 115°. about 75°. 90°. 0°. about 115°. about 75°. 90°. 0°. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines stepped cores are used in transformers in order to reduce volume of copper. iron loss. volume of iron. reluctance of core. volume of copper. iron loss. volume of iron. reluctance of core. ANSWER DOWNLOAD EXAMIANS APP
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