Kramer system utilizing a commutatorless motor

Details Kramer system utilizing a commutatorless motor Kramer system utilizing a commutatorless motor

1976-01-20

1977-11-15

Schaefer, Robert K.

Electricity: motive power systems

Plural, diverse or diversely controlled electric motors

Mechanically coupled in fixed ratio of movement

318197, 318241, 318439, 318137, H02P 154

Patent

active

040587550

ABSTRACT:
A speed control system for an induction motor controlled by a converting arrangement coupled with a commutatorless motor which operates without commutation failure notwithstanding wide variations in the speed of the commutatorless motor. The speed control system includes an arrangement for maintaining the value of a direct current signal of the converting arrangement less than the maximum current value for ensuring proper operation of the converting arrangement.

REFERENCES:
patent: 2061983 (1936-11-01), Rossman
patent: 3515969 (1970-06-01), Magnuson et al.
patent: 3686548 (1972-08-01), Onoda et al.
patent: 3735225 (1973-05-01), Raatz

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