GAS (SF) INSULATION WITH THERMAL CAPACITOR CIRCUIT BREAKER SYSTEM Russian patent published in 2020 - IPC H01H9/30 H01H33/56 

FIELD: electrical engineering.

SUBSTANCE: invention relates to electrical engineering, namely to automatic switches, such as a gas-insulated circuit breaker system (SF₆) insulated with a thermal capacitor, designed to work in conditions of low temperature. System of automatic circuit breaker with sulphur-hexafluoride insulator (SF₆) includes a reservoir containing SF₆ automatic circuit breaker having contacts isolated by means of SF₆, heater intended for heat supply to SF₆, and heat capacitor in heat-conducting contact with reservoir, intended for heat energy accumulation and made with possibility to transfer heat energy to SF₆ in reservoir. Heat energy accumulation system for the SF₆-insulated circuit breaker system, with SF₆ storage tank, contains a heat condenser designed to accumulate heat energy and made with possibility of contacting with reservoir and transfer of heat energy to SF₆ in reservoir.

EFFECT: technical result of invention is improvement of circuit breaker system operation in conditions of low ambient temperature and increase of its reliability.

20 cl, 3 dwg