VACUUM CIRCUIT BREAKER Russian patent published in 2011 - IPC H01H33/662 H01B17/32 

FIELD: electricity.

SUBSTANCE: in vacuum circuit breaker containing at least one vacuum arc-extinguishing chamber, two insulating pipes from composite material, on outer surfaces of which there are ribs from organic-silicon material, and metal flange coaxially attaching the above pipes, the above insulating pipes have equal outer diametres, and metal flange in the centre of outer cylindrical surface is equipped with annular projection. At that, insulating pipes are installed on outer cylindrical surface of metal flange as far as they will go in the above annular projection.

EFFECT: increasing mechanical strength and reliability of connections of circuit breaker, simplifying its design and reducing weight and dimension parametres.

7 cl, 4 dwg