Operation selector for switchgear

Details Operation selector for switchgear Operation selector for switchgear

1996-08-29

1998-09-15

Luebke, Renee S.

Electricity: circuit makers and breakers

Interlocking

200 17R, 200 4314, H01H 300, H01H 928, H01H 3100

Patent

active

058082514

ABSTRACT:
An operation selector arrangement is provided for an operating mechanism that is controlled by movement of an operating shaft between the operational positions. Blocking features are provided for preventing operation between predetermined operational positions without first manipulating the blocking features. In a preferred arrangement, a an operating handle is utilized to operate the operation selector arrangement. A blocking member prevents operation of an operation selector between two operating positions without first stopping at an intermediate position, removing the operating handle, moving the blocking member, and then reinserting the handle. The blocking member is separately securable from the operation selector such that personnel may be authorized to operate the operation selector while other personnel are additionally authorized to manipulate the blocking member.

REFERENCES:
patent: 4210788 (1980-07-01), Stranczek
patent: 5034575 (1991-07-01), Stewart
patent: 5034584 (1991-07-01), Fanta et al.
patent: 5268543 (1993-12-01), Ramos
patent: 5504293 (1996-04-01), Rogers et al.

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