MECHANISM FOR MANUAL DISCONNECTION OF THE DRIVE OF A HIGH-VOLTAGE VACUUM CIRCUIT BREAKER Russian patent published in 2021 - IPC H01H33/64 

FIELD: electrical engineering.

SUBSTANCE: invention relates to electrical engineering, to high-voltage apparatus building, namely to structures of drives of high-voltage vacuum circuit breakers configured to be manually disconnected, and pertains to a structure of high-voltage circuit breakers with vacuum arc-interruption chambers. The manual drive mechanism comprises three phase-by-phase drives with a mobile element in the form of a cylindrical armature, the manual disconnection and locking shaft comprises eccentrics intended, upon pressing the manual disconnection button followed by turning the manual disconnection and locking shaft, to impact the disconnection levers connected with the release bolts intended for detaching the armature from the magnetic circuit and disconnecting the drive of the circuit breaker.

EFFECT: increase in the safety and security of performing the manual operation, as well as provided possibility of increasing the retaining force on the drives and creating a more powerful apparatus intended for significantly higher currents, exhibiting higher safety.

1 cl, 3 dwg