DISCONNECTING SWITCH Russian patent published in 2008 - IPC H01H31/20 

FIELD: electrical engineering; high-voltage disconnecting switches.

SUBSTANCE: proposed disconnecting switch has at least one rotary support insulator with knife-blade contact having split contact member, contact base on nonsplit part of knife-blade contact, contact lead which rotates on pin, is provided with contact pad, and contacts base through current-carrying components held down by means of contact spring; disconnecting switch is provided with control rod passed through insulator additional through hole along geometric axis; one end of control rod is engageable with contact lead and other end, with contact spring; contact pad is disposed above contact lead on longitudinal geometric axis of rotary support insulator. Contact spring may be disposed in plane of axis or in that of rotary support insulator, or in plane of contact base.

EFFECT: enhanced reliability of disconnecting switch.

4 cl, 2 dwg