Gas-blast type circuit interrupter

Details Gas-blast type circuit interrupter Gas-blast type circuit interrupter

1978-03-23

1981-03-17

Rubinson, Gene Z.

Electricity: circuit makers and breakers

Liquid contact

Time delay

200148B, 200149B, H01H 3374

Patent

active

042569400

ABSTRACT:
A circuit interrupter comprising a pressure chamber, disposed in fluid communication with an arc extinguishing chamber containing an arc extinguishing fluid, for temporarily storing the arc extinguishing fluid pressure-raised by the arc energy, the high pressure arc extinguishing fluid being puffed at an electric arc established between the separated contacts to extinguish it. The circuit interrupter further comprises means, for relaxing the electric field, disposed on one of the contacts and around an arcing region. The circuit interrupter is prevented from re-arcing due to the transient recovery-voltage after the arc current reaches the zero point, thereby ensuring a complete arc extinction in a short period of time.

REFERENCES:
patent: 3895201 (1975-07-01), Schramm et al.
patent: 4032736 (1977-06-01), Ruffieux et al.
patent: 4146763 (1979-03-01), Handke
Japanese Laid-Open Utility Model Application No. 47-2934, Laid Open on Dec. 4, 1972.
Japanese Laid-Open Application No. 49-42465, Laid Open on Apr. 13, 1974.

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