COLUMN HIGH-VOLTAGE CIRCUIT BREAKER Russian patent published in 2011 - IPC H01H33/40 

FIELD: electricity.

SUBSTANCE: invention includes development of column sulphur-hexafluoride circuit breaker with opening springs arranged at high potential level, but available for control of the state or for replacement without the need for depressurisation of gas system of the device. In column high-voltage circuit breaker each pole of which includes the drive; at least one pair of arc-control devices electrically insulated from earth by means of hollow column; at least one opening spring arranged at high potential level and transfer mechanism connecting the output element of the drive to contacts of arc control devices and to opening spring, the latter is arranged on the outer side in an individual easily removable tight casing which is not interconnected with working cavities of pole, which are filled with hexafluorated sulphur.

EFFECT: simplifying the adjustment and alignment of the device, control of the state of spring at maintenance of circuit breaker, and if required the replacement of spring - reducing the duration and cost of this operation.

2 dwg