Electrical shorting switch assembly including a last to open las

Details Electrical shorting switch assembly including a last to open las Electrical shorting switch assembly including a last to open las

1982-02-17

1984-03-20

Scott, J. R.

Electricity: circuit makers and breakers

Multiple circuit control

Operating means

200144B, H01H 300, H01H 3366

Patent

active

044383029

ABSTRACT:
An electrical shorting switch assembly for use with an electrolytic cell includes a plurality of parallel path electrical switches. One of the switches is an arcing switch which is designed to be a last-to-open and last-to-close switch of the assembly. A common rotatable operating shaft is used to actuate opening and closing of the electrical switches. The arc switch has separate linking means between the arc switch and the shaft which permits sequential operation of the arc switch relative to the main current-carrying switch or switches. The arc switch linking means in conjunction with the linking means for the current switches determine that the arc switch is the last to open and last to close.

REFERENCES:
patent: 1094690 (1914-04-01), Wood
patent: 3174019 (1965-03-01), Jansson
patent: 3469048 (1969-09-01), Lee et al.
patent: 4000480 (1976-12-01), Gray et al.
patent: 4016385 (1977-04-01), Golioto
patent: 4121268 (1978-10-01), Hruda et al.
patent: 4216359 (1980-08-01), Hruda

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