Isolating switch shutter assembly for high voltage motor starter

Details Isolating switch shutter assembly for high voltage motor starter Isolating switch shutter assembly for high voltage motor starter

1976-04-02

1978-04-25

Scott, James R.

Electricity: circuit makers and breakers

Interlocking

Between plural switches

361337, 361345, H01H 922

Patent

active

040864529

ABSTRACT:
A high voltage motor controller which is capable of accepting a modular plug-in unit comprising a power fuse assembly and isolating switch apparatus of a drawout type, and characterized by a safety shutter mechanism for mechanically driving an isolating shutter between open and closed positions, to prevent accidental access to the energized stationary line stabs.

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patent: 3213222 (1965-10-01), Finley et al.
patent: 3219771 (1965-11-01), Umphrey
patent: 3264432 (1966-08-01), Hodgson et al.
patent: 3264433 (1966-08-01), Clark, Jr. et al.
patent: 3610850 (1971-10-01), Eichelberger
patent: 3749862 (1973-07-01), Wilson et al.
patent: 3778568 (1973-12-01), Wilson
patent: 3920939 (1975-11-01), Ciboldi et al.

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