Metal-clad puffer-type circuit-breaker having closing resistors

Details Metal-clad puffer-type circuit-breaker having closing resistors Metal-clad puffer-type circuit-breaker having closing resistors

1980-06-04

1985-12-31

Macon, Robert S.

Electricity: circuit makers and breakers

Liquid contact

Time delay

200148A, 200145, 200148D, H01H 3316, H01H 3389, H01H 942

Patent

active

045623198

ABSTRACT:
A multibreak puffer-type circuit-breaker having a cylindrical enclosure filled with pressurized gas, such as SF6 and including a plurality of staggered arc-extinguishing units electrically connected in series. Closing resistors associated with each unit extend cross-wise to the longitudinal direction of the enclosure and are arranged in spaces between the main and auxiliary contacts. The resistors are operated by an auxiliary control rod so as to be inserted during a closing operation prior to engagement of the main contacts.

REFERENCES:
patent: 2336316 (1943-12-01), Thommen
patent: 2840670 (1958-06-01), Leeds et al.
patent: 2999143 (1961-09-01), Baker et al.
patent: 3378661 (1968-04-01), Ramrath
patent: 3590186 (1971-06-01), Brunner et al.
patent: 3895202 (1975-07-01), Okerman et al.

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