Vacuum electrical switch

Details Vacuum electrical switch Vacuum electrical switch

1992-05-28

1993-08-24

Scott, J. R.

Electricity: circuit makers and breakers

Liquid contact

Time delay

200147R, H01H 3366

Patent

active

052391493

ABSTRACT:
A vacuum electrical switch comprises a coil arranged in the metal base plate of the cartridge. The metal base plate constitutes a current input to the contact, this input having a radial conducting path and a path forming a spiral, electrically connected in parallel. In order to enhance the current flow in the spiral, which forms an axial magnetic blowout coil, the base plate has ripples or a slit which lengthen the radial conducting path.

REFERENCES:
patent: 4115672 (1978-09-01), Lipperts
patent: 4394554 (1983-07-01), Warabi et al.
patent: 4661666 (1987-04-01), Sakuma et al.
patent: 4737607 (1988-04-01), Bernard et al.
patent: 5155315 (1992-10-01), Malkin et al.

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