2 Answers
admin Staff answered 5 years ago
When A.C. supply is given to a D.C. motor: 1)In case of Series connection of armature winding and field winding , it may run.
But, In case of parallel connection , it won’t rotate at all and will start humming and will create vibrations, as a torque produced by positive and negative cycle will cancel out each other.
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admin Staff answered 5 years ago
When we connect dc motor to ac supply. the motor will rotate but high heat is develop which can cause damage in armature winding and brushes.
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