Electrical Machines Hopkinss test in DC motor is conducted at ? Full load. None of these. Low load. No load. Full load. None of these. Low load. No load. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines If the air gap of IM is increased, ____________ will increase. power factor. magnetizing current. air gap flux. speed. power factor. magnetizing current. air gap flux. speed. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines In DC generators brushes are used for convert ac armature current in to dc collecting of current without any sparkings collecting of voltage reduce eddy current loss convert ac armature current in to dc collecting of current without any sparkings collecting of voltage reduce eddy current loss ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines In travelling cranes for crane travel, trolley and boom hoist which motor is preferred? DC differential compound motor. Slip ring induction motor. Stepper motor. Synchronous motor. DC differential compound motor. Slip ring induction motor. Stepper motor. Synchronous motor. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines A 440 V, 3-phase, 10 pole and 50 HZ synchronous motor delivering a torque of 50 N-m, delivers a power of 1000W 3000W 500W 100W 1000W 3000W 500W 100W ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines In dc machines, the field system has to be provided on stator unlike synchronous machines Where in it could be on any member, because it reduces field structure iron losses it gives more uniform air-gap flux distribution dc machines are comparatively low rating machines. commutator action is not possible otherwise it reduces field structure iron losses it gives more uniform air-gap flux distribution dc machines are comparatively low rating machines. commutator action is not possible otherwise ANSWER DOWNLOAD EXAMIANS APP
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