Puffer circuit-breaker with two concentric interrupting chambers

Details Puffer circuit-breaker with two concentric interrupting chambers Puffer circuit-breaker with two concentric interrupting chambers

1993-07-26

1994-12-13

Scott, J. R.

Electricity: circuit makers and breakers

Liquid contact

Time delay

200148R, 200148B, H01H 3374, H01H 3388

Patent

active

053731310

ABSTRACT:
A puffer circuit-breaker comprises a first interrupting chamber (2), a second interrupting chamber (4) situated within the first interrupting chamber, and a stationary electric arcing contact (6) which extends inside the second interrupting chamber. The second interrupting chamber is movably mounted in the first interrupting chamber and is arranged to slide along the stationary contact. This arrangement provides good arc-extinction both at low electric current and at high electric current.

REFERENCES:
patent: 4239949 (1980-12-01), Kii et al.
patent: 4259555 (1981-03-01), Kii
patent: 4594488 (1986-06-01), Talpo
patent: 4604508 (1986-08-01), Talpo
patent: 5179257 (1993-01-01), Dufournet et al.

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