1. Slip rings and brushes are used to conduct current to the rotor.2. The AC slip rings also allow the machine to act as an alternator. 3. Accordingly, the field is mounted on the rotor and supplied through slip rings . 4. During the start-up a typical rotor has 3 poles connected to the slip ring . 5. While commutators are segmented, slip rings are continuous, and the terms are not interchangeable. 6. Rotary transformers are often used instead of slip rings in high-speed or low-friction environments. 7. Patina is also found on slip rings and commutators. 8. Slip rings however inject commutator noise into the connection.9. Power is carried to the motors via slip ring brushes at the center and cables. 10. In this instance, the rotating contacts are continuous rings, called slip rings , and no switching happens.
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