Vacuum arc-extinguishing chamber

In combination with the structural design of this utility model, the device features a compact architecture that enables operation under high rated currents while meeting stringent high‑frequency switching requirements. Moreover, it extends the service life of the vacuum arc‑extinguishing chamber, thereby enhancing its overall practicality.

Vacuum arc-extinguishing chamber

The ZW32 vacuum interrupter is the core component of the ZW32‑12 outdoor high‑voltage vacuum circuit breaker, functioning much like a "circuit‑breaker" in an electrical circuit. It is specifically designed to safely and swiftly interrupt fault currents in 10 kV distribution networks. Its typical model designation is TD‑12/630‑20, where "12" indicates a 12 kV voltage rating, "630" denotes the rated current, and "20" signifies the capability to interrupt a short‑circuit current of 20 kA.

Vacuum arc-extinguishing chamber

Gas-insulated switchgear (commonly referred to as C‑GIS) encloses all high-voltage live components, including busbars and circuit breakers, within a stainless-steel enclosure filled with insulating gas. Its key advantage is its immunity to external environmental conditions, resulting in virtually maintenance-free operation.