Multiphase gas expansion circuit breaker for gas-insulated metal

Details Multiphase gas expansion circuit breaker for gas-insulated metal Multiphase gas expansion circuit breaker for gas-insulated metal

1987-12-29

1989-03-28

Macon, Robert S.

Electricity: circuit makers and breakers

Liquid contact

Time delay

200147A, 200147R, 200148R, 200148G, H01H 3360, H01H 3318

Patent

active

048166243

ABSTRACT:
A circuit breaker includes a plurality of poles disposed parallel side by side in a sealed enclosure (18) filled with SF6 insulating gas. The housing of each arc extinguishing chamber (22) comprises a metal shielding wall (52) designed to neutralize the influence of the magnetic stray fields of the neighbouring poles. The wall (52) can be made of conducting or ferromagnetic material, and enables correct entering of the arc favouring the expansion effect of the gas. Application: medium voltage electrical distribution substation. Refer to FIG. 1.

REFERENCES:
patent: 2459599 (1949-01-01), Strom
patent: 3183330 (1965-05-01), Barkan et al.
patent: 3183331 (1965-05-01), Barkan
patent: 4221943 (1980-09-01), Kii
patent: 4359616 (1982-11-01), Ueda et al.

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