Electrical Engineering ⇒ Topic : Revolving Field Type Alternator

Revolving Field Type Alternator:-

1. It has a stationary armature or stator inside of which the field poles rotate.
2. Most alternators are of the revolving field type in which the revolving field structure or rotor has slip rings and brushes to supply the excitation current from an outside D.C. source.
3. Usually the field voltage is between 100 and 250 volt and the amount of power delivered to the field circuit is relatively small.