Electrical Machines What is the frequency of rotor current of 50 Hz induction motor operating at 4% slip? 2HZ 2.5Hz 1 Hz 50Hz 2HZ 2.5Hz 1 Hz 50Hz ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines The crawling in the induction motor is caused by harmonics developed in the motor improper design of stator laminations high loads low voltage supply harmonics developed in the motor improper design of stator laminations high loads low voltage supply ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines Which of the following rotor requires damper winding? Cylindrical rotor. None of these Salient pole rotor. Both type rotor. Cylindrical rotor. None of these Salient pole rotor. Both type rotor. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines Compensating winding is placed in the main field pole shoe armature core All of these main field pole shoe armature core All of these ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines Which of the following represents the rotating losses of machine? All of the them Hysteresis losses Friction and windage losses Eddy current losses All of the them Hysteresis losses Friction and windage losses Eddy current losses ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines The rotor winding for a 3-phase slip-ring induction motor having delta-connected stator must be connected in delta or star according to need. None of these delta. star. delta or star according to need. None of these delta. star. ANSWER DOWNLOAD EXAMIANS APP
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