Vacuum arc-extinguishing chamber for semi‑sealed environmentally friendly switchgear, TD‑12/630‑20 (ZN‑100A)

New Products / New Technology

The vacuum arc-extinguishing chamber for 12 kV semi‑solid‑encapsulated eco‑friendly switchgear is the core component of such equipment. Through optimized internal structure, it ensures excellent breaking performance and superior internal insulation. The outer surface of the insulating housing is coated with silicone rubber to enhance external insulation, enabling reliable insulation under dry‑air protection. Primarily used in medium‑voltage distribution systems, it features high reliability, environmental friendliness, and a compact design. Conventional products, when paired with eco‑friendly switchgear and complete eco‑friendly switchgear cabinets, have successfully passed the full set of type tests at the Xi'an High Voltage Apparatus Research Institute, fully meeting the random inspection requirements of both State Grid and China Southern Power Grid.

Vacuum arc-extinguishing chamber for outdoor pole-mounted switches, TD-12/630-20 (ZW-32B)

New Products / New Technology

The vacuum arc-extinguishing chamber for 12 kV pole-mounted switches is the core component of outdoor pole-mounted switchgear, primarily designed for 12 kV outdoor pole-mounted switches, including integrated primary‑secondary pole-mounted switches. Leveraging the excellent breaking and insulation characteristics of vacuum contacts, it provides critical protection for distribution systems. Standard products are compatible with ZW32‑type switches and have successfully passed the full suite of type tests at the Xi'an High‑Voltage Apparatus Research Institute, fully meeting the random inspection requirements of both State Grid and China Southern Power Grid.

Vacuum arc-extinguishing chamber for gas-insulated switchgear, TD-40.5/1250-25 (TD-40.5-25Q2)

New Products / New Technology

The vacuum arc-extinguishing chamber for 40.5 kV gas-insulated switchgear is a core component of SF6‑filled switchgear. The sealed cabinet interior is filled with SF6 protective gas, while the vacuum arc-extinguishing chamber assumes the arc‑extinguishing function at the breaking gap. In 40.5 kV high‑voltage vacuum arc‑extinguishing chambers used in SF6‑filled switchgear, an innovative hybrid design separates insulation and arc‑extinguishing functions, balancing performance with environmental considerations. This makes it particularly well suited to environmentally sensitive applications and increasingly widespread in medium‑ and high‑voltage transmission and distribution networks.