Design of synchronous machines
The stator of a synchronous machine with a three-phase winding does not differ from the design
of the stator of an asynchronous machine, and the rotor with an excitation winding is of two
types - explicit and implicit. At high speeds and a small number of poles, non-pole rotors are
used, as having a more robust structure, and at low speeds and a large number of poles, single-
pole rotors of a prefabricated design are used. The strength of such rotors is less, but they are
easier to manufacture and repair.
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