Circuit interrupter having controlled rate of arc extinguishment

Details Circuit interrupter having controlled rate of arc extinguishment Circuit interrupter having controlled rate of arc extinguishment

1978-07-19

1980-10-14

Truhe, J. V.

Electricity: circuit makers and breakers

Liquid contact

Time delay

200148F, H01H 3370

Patent

active

042283337

ABSTRACT:
A circuit interrupter comprises a pair of contacts being relatively moved to be detachable in an arc extinct chamber filled with a fluid for arc extinction; a pressurizing chamber for storing the fluid pressurized in an arc space in which the arc is formed by the departing operation of the contacts; and speed control means for controlling a speed for departing the contacts to at least two steps and said speed control means is connected to a driving system for the contacts wherein the fluid is discharged through the arc space out of the arc extinct chamber after departing the contacts for a specific distance and the arc is interrupted by puffing the fluid.

REFERENCES:
patent: 1904539 (1933-04-01), Ruppel
patent: 3514563 (1970-05-01), Stegmuller
"Construction of An Electrode of A Gas Puffing Circuit _Interrupter", by Iwamoto et al.
"Gas Type Interrupter", by Iwamoto et al.

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