HIGH-VOLTAGE CIRCUIT BREAKER Russian patent published in 2012 - IPC H01H33/76 

FIELD: electricity.

SUBSTANCE: circuit breaker consists of foundation made in the form of frame with installed breaker mechanism, six base insulators with contact system installed on them and consisting of operating moving contact members, arcing contacts, operating stationary contact members and arc-receiving contacts, arc blow-out chambers with inserts having arched shape so that arcing contacts could enter them. Arcing contacts are connected to operating moving contact members by tension spring. Operating stationery arc-receiving contacts and arc blow-out chamber are rigidly fixed at base insulators located in the upper part of foundation. Operating moving contact members are connected to breaker shaft by tractional insulator.

EFFECT: advanced producibility during production of highly reliable contact system and durability of arcing and arc-receiving contacts.

1 dwg