SYSTEM OF SF6 GAS INSULATED CIRCUIT BREAKER WITH HEATER Russian patent published in 2019 - IPC H01H33/64 

FIELD: electrical engineering.

SUBSTANCE: invention relates to electrical engineering and can be used for automatic gas-insulated circuit breakers. System of SF6 gas insulated automatic circuit breaker contains reservoir made with possibility to retain SF6 gas, automatic circuit breaker containing contacts insulated with SF6 gas, controller, a heater configured to supply heat for heating SF6 gas, at least two different sensors selected from a group comprising: an SF6 gas temperature sensor, an ambient temperature sensor, contact position sensor intended for signalling about open or closed position of contacts, and indicator of density of SF6 gas. Controller is connected to at least two different sensors and is configured to control heat output of SF6 heater based on signals received from said at least two different sensors.

EFFECT: broader functional capabilities.

20 cl, 1 dwg