Circuit arrangement for an a-c series motor

Details Circuit arrangement for an a-c series motor Circuit arrangement for an a-c series motor

1976-09-15

1978-06-13

Dobeck, B.

Electricity: motive power systems

Plural diverse motor controls

Motor-reversing

318375, 318369, H02P 312, H02P 300

Patent

active

040951510

ABSTRACT:
An a-c series motor with a switching device for changing from motor to braking operation has a series circuit consisting of a capacitor and a charging diode associated therewith, in which, in order to avoid an additional resistor for limiting the charging current for the capacitor, the capacitor and the charging diode are connected in such a manner that the armature winding is shunted by the series circuit consisting of the capacitor and the charging diode, a switch contact being arranged between the center of this series circuit and the external terminal of the field winding, so that in motor operation, a series circuit consisting of the capacitor, the charging diode and the field winding is connected between the terminals of the a-c series motor and in braking operation, the armature winding in series with the field winding is shunted by the capacitor.

REFERENCES:
patent: 3260908 (1966-07-01), Bostwick

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