Indoor ceramic vacuum interrupter

Vacuum interrupter, also known as a vacuum switch tube, is a core component in medium and high voltage power switches. It rapidly extinguishes the arc and suppresses the current after circuit interruption using the vacuum's high insulation properties, preventing accidents. It is widely used in power transmission and distribution systems, as well as in metallurgy, mining, petroleum, chemical, railway, and other industrial applications. Key advantages include compact size, long service life, high reliability, and low maintenance. Vacuum interrupters are classified into circuit breaker types, mainly for substations and grid facilities, and load switch types, mainly for end-users of the power grid.

It features a spiral groove type with simple structure, strong interrupting capability, and easy maintenance. It uses a ceramic insulating envelope that provides good airtightness and generates no high-pressure gas, ensuring safe inspection and maintenance.