Current limiting switch device

Details Current limiting switch device Current limiting switch device

1990-09-19

1992-09-08

Scott, J. R.

Electricity: circuit makers and breakers

Liquid contact

Time delay

200147R, H01H 936, H01H 3310

Patent

active

051460556

ABSTRACT:
A finless current limiting switch apparatus is disclosed, in which the cut-off chamber, containing a fixed contact and mobile contact, has opposite converging walls which lead to a narrow slit where the arc is subjected to narrowing of its section after natural or assisted development thereof along a conducting deflection piece which is connected to the fixed contact and has an end located in the slit or in the vicinity of the slit. The conducting deflecting piece defines a conductive path of movement for the arc.

REFERENCES:
patent: 2555799 (1951-06-01), Lerstrup
patent: 3483343 (1969-12-01), Heft
patent: 3564176 (1971-02-01), Fechant
patent: 4082931 (1978-04-01), Hayes
patent: 4112275 (1978-09-01), Kohler
patent: 4387281 (1983-06-01), Haury et al.
patent: 4491705 (1985-01-01), Hayashi et al.
patent: 4516005 (1985-05-01), Gallatin et al.
patent: 4652707 (1987-03-01), Mori et al.

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