Reversing contactor for a three-phase motor

Details Reversing contactor for a three-phase motor Reversing contactor for a three-phase motor

1985-04-16

1986-10-21

Shoop, Jr., William M.

Electricity: motive power systems

Motor-reversing

200 1V, 361 77, H02P 140, H01H 900

Patent

active

046188070

ABSTRACT:
This invention pertains to a three-phase reversing contactor with fixed-mounted contact parts serving the input and the output, and a connection by contact bridges from the input to the output. A common drive mechanism is provided for all the contact bridges, and a shift mechanism to change the configuration of the contact bridges, while in the OPEN position, relative to the fixed-mounted contact parts is also provided. Through the application of the two independently movable contact bridge carriers, which by use of an auxiliary magnet can be selectively brought into functional contact with the common drive mechanism by a reversing yoke, the drive output for the auxiliary magnets can be kept low. As there is a fixed configuration of contact bridges to the fixed-mounted contact parts, the major wiring work can be performed in the shop by the use of correspondingly formed fixed-mounted contact parts.

REFERENCES:
patent: 1616684 (1927-02-01), Evans
patent: 2264993 (1941-12-01), McShane
patent: 3504312 (1970-03-01), Visser et al.
patent: 3673426 (1972-06-01), Weston et al.
patent: 4357502 (1982-11-01), Beck

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