Brushless synchronous motor with short-circuited protective wind

Details Brushless synchronous motor with short-circuited protective wind Brushless synchronous motor with short-circuited protective wind

1987-06-22

1989-04-25

Ro, Bentsu

Electricity: motive power systems

Synchronous motor systems

Field winding circuits

318718, 318712, H02P 146

Patent

active

048251380

ABSTRACT:
In a brushless synchronous motor in which a short-circuited protective winding (9) is associated with the field winding (2) of the rotor the starting conditions are improved in that the protective winding (9) consists of two winding sections (10, 11), which have different numbers of turns and are either wound in mutually opposite senses or are wound in the same sense but connected in opposition.

REFERENCES:
patent: 3449652 (1969-06-01), Ishizaki
patent: 3461368 (1969-08-01), Haller
patent: 3748555 (1973-07-01), Hoffman

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