Five gear isolating mechanism for bypass isolation switches

Details Five gear isolating mechanism for bypass isolation switches Five gear isolating mechanism for bypass isolation switches

1991-07-31

1993-04-06

Scott, J. R.

Electricity: circuit makers and breakers

Interlocking

Between plural switches

200 18, 307 64, H01H 926, H02J 900

Patent

active

052005860

ABSTRACT:
A mechanism for bypass isolation switches of the type comprised of at least three circuit interruption devices each having a handle has at least three switch gears, one positioned over each circuit interruption device and having either a drive gear or a spacer gear therebetween. A cam having a mouth which engages the handle of the circuit interruption device is eccentrically mounted on each switch gear. A stop is provided on at least one gear to permit the gears to rotate only 180.degree.. Since the drive, spacer and switch gears are interconnected, the cams must move or not move simultaneously. As a result, the at least three circuit interruption devices are operated simultaneously.

REFERENCES:
patent: 3778633 (1973-11-01), DeVisser et al.
patent: 4157461 (1979-06-01), Witkor
patent: 4295054 (1981-10-01), Kovatch et al.
patent: 4760278 (1988-07-01), Thomson
patent: 5081367 (1992-01-01), Smith et al.
Color brochure entitled "Westinghouse Transfer Switches", Aug. 1983.
Brochure entitled "Westinghouse Transfer Switch Equipment", Jul. 1990.
Brochure entitled "Transfer Switch Equipment 30 through 4000A", Sep. 1990.
Brochure entitled "Instructions for Transfer Switches--Breaker Type Construction", Mar. 1983.

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