Electrical Machines In induction motor the 7th harmonic torque may make the motor rotate at (1 / 7)th synchronous speed. This is called crawling. cogging. harmonics. resonance. crawling. cogging. harmonics. resonance. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines The interpoles in dc machines have a tapering shape in order to economise on the material required for interpoles and their windings increase the acceleration of commutation reduce the saturation in the interpole reduce the overall weight economise on the material required for interpoles and their windings increase the acceleration of commutation reduce the saturation in the interpole reduce the overall weight ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines The 3 - Φ induction motor with rotor circuit open will run normally. not run. make noise. get over heated. run normally. not run. make noise. get over heated. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines In DC machine shape of armature MMF wave is? Triangular and directed towards main pole. Saddle shape. Triangular and directed towards brush axis. Peaky in nature. Triangular and directed towards main pole. Saddle shape. Triangular and directed towards brush axis. Peaky in nature. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines In a DC Shunt Motor if the load current increases then field flux decreases decreases. remains constant. increases. decreases decreases. remains constant. increases. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines A DC generator can be considered as prime mover. power pump. rectifier. rotating amplifier. prime mover. power pump. rectifier. rotating amplifier. ANSWER DOWNLOAD EXAMIANS APP
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