The ZGW4-100 outdoor high-voltage DC disconnect switch is primarily installed in the DC field of ±800kV converter stations, on the low-voltage side of the DC filter, neutral line side, and metal circuit side. It features a double-column horizontal-break rotary structure, with optimized design focusing on the current-carrying capacity of the conductive circuit, enhancing the reliability of conduction, standardizing the versatility of components, and preventing rust-related jamming in the transmission parts.

The insulation parameters of this product meet the standard requirements for a 150kV DC disconnect switch at an altitude of 2500 meters, making it suitable for use in 40kV and 150kV DC disconnect switch applications.