The Interrupter adopts “one shut technology”, ceramic shell, CuWC as the contact material;is characterized by high insulation, low stop-flow, strong blowout ability , long life, smallsize etc, and has advantages as easy to maintain, no explosion risk ,pollution-free and lownoise etc. Contactors assembled by it are used to control and protect the electricity transmission and distribution system in electrical, mechanical, chemical, metallurgy, mining and railway department, especially in frequent operation fields.

Working Principle

Making: Connect the vacuum interrupter into the following circuit, when the operating machine makes the movable conductive pole move up, the movable contact and the fixed contact will close, and current pass through the load.

Breaking: When the operating machine makes the movable conductive pole move down, movable contact and the fixed contact will separate from each other and brings the vacuum arc which is sustained by metallic vapor from contact until power current closing to zero. Plasma in the vacuum arc will spread quickly all around and the vacuum arc will be extinguished. The electric conductor between contacts changes to insulator then current break.