Detachable built-in electromagnet driven type vacuum switch

A vacuum switch for frequent control of high-voltage and high-current circuit is composed of an insulating tube, two insulating covers, two conducting end covers, two sealing rubber rings and a sealed joint assemblage for vacuumizing, and a vacuum tube, in which screw connection is used and which can be assembled, disassembled and vacuumized repeatedly. The moving and fixed contacts and electromagnet to drive moving contact are installed in the vacuum tube. The moving and fixed contacts have respectively convex and concave spherical surfaces. An electric arc sucking coil outside the vacuum tube and a multihole arc extinguish chamber around the moving contact constitute an arc suppressing unit. Its advantages are simple structure, small size, low cost and long service life.

Detachable built-in electromagnetic driven type vacuum switch