11. Wound-rotor synchronous motors can be run at even higher speeds. 12. But such constancy did not yet exist when Warren first experimented with his synchronous motors . 13. Another style of electrically powered damper uses a spring-return mechanism and a shaded-pole synchronous motor . 14. The synchronous motor does not rely on current induction to produce the rotor's magnetic field. 15. With load commutation, the load is a synchronous motor operated at a leading power factor. 16. This greatly eases the problem of starting the massive rotor of a large synchronous motor . 17. The synchronous motor and induction motor are the most widely used types of AC motor. 18. The reactive power drawn by the synchronous motor is a function of its field excitation. 19. The pump is powered by a magnet synchronous motor . 20. Synchronous motor clocks are rugged because they do not have a delicate pendulum or balance wheel.
