Overview

The 8DA switchgear is factory-assembled and type-tested, single-pole metal-enclosed, SF₆ gas-insulated indoor switchgear for single-busbar, double-busbar, and traction power supply systems.

The single-pole enclosure of the primary part is made of corrosion-resistant aluminum alloy.

SF₆ gas insulation (sealed gas system complies with GB/T 11022 and IEC 62271-1).

Product Features

Unaffected by environment

Single-pole enclosed high-voltage part suitable for harsh environmental conditions; compact structure due to gas insulation.

Maintenance-free design

Switchgear compartment with sealed pressure system, maintenance-free switching components, and sealed cable plugs ensure long-term reliability.

Technological innovation with digital secondary system, integrated protection and control devices enables: Service life of 35 years under normal operating conditions; up to 40–50 years possible considering the sealed high-voltage part.