11. In brushless synchros, typical rotary transformers ( in pairs ) provide longer life than slip rings . 12. Traditional electrical commutators use slip rings for coupling. 13. Limitations of the concept are the current-carrying capacity of the slip rings for the rotor winding. 14. Some other names used for slip ring are collector ring, rotary electrical contact and electrical slip ring. 15. Slip rings do the same for electrical power and signal that rotary unions do for fluid media.16. A "'homopolar motor "'is a direct current electric motor with two commutator but still requires slip rings . 17. Some other names used for slip ring are collector ring, rotary electrical contact and electrical slip ring . 18. Some specific products, such as slip rings or thermal insulation are offered also to non space customers 19. In a slip ring motor, it drawing more than the rated current in no load it self. 20. It is possible to avoid the multiphase slip ring assembly ( see brushless wound-rotor doubly-fed electric machine.
