VACUUM CIRCUIT BREAKER Russian patent published in 2009 - IPC H01H33/00 

FIELD: electricity.

SUBSTANCE: vacuum circuit breaker is of modular design with possibility of mounting any quantity of phase modules; it comprises sealing insulation caps with concentric circle projections; the insulation caps are mounted coaxially to the conducting parts. It also comprises current sensors "Rogowski loop" which are mounted at the conducting parts and fixed on the casing by fastening bolt and insert nut with possibility of using its one nominal in case power of switched equipment is different; traction insulator comprising sealing membrane which separates high-voltage section from electromagnetic drive; the electromagnetic drive is controllable due to the movement of armature by altering voltage on the coils, it is set at one axis with the phase module.

EFFECT: decreasing dimensions, increasing service life and reliability of circuit breaker and switched equipment.

3 dwg