A double column horizontal rotating design, it consists of insulated pillars, conductive blades, a base, and an operating mechanism. The blades move horizontally at a constant speed when opened and closed, with strong ice breaking ability. The insulation pillar is an anti fouling rod structure
Used for electrical isolation of high-voltage lines under no-load conditions, providing visible breakpoints to ensure maintenance safety, and cannot disconnect loads or short-circuit currents.
Support single-sided or double-sided grounding knife switch configuration to achieve linkage operation between the main circuit and the grounding circuit
The 40.5kV GW5 isolation switch, with its modular design, high mechanical lifespan (≥ 2000 cycles), and wide environmental adaptability, has become the preferred equipment for safe isolation in medium and high voltage power grids, especially suitable for new energy and industrial distribution scenarios.
| Rated voltage | 40.5kV |
| Rated lightning impulse voltage(peak value) | To earth:185KV Across the isolating:215kV |
| 1 min rated power frequency voltage(virtual value) | To earth:95kV Across the isolating:110kV |
| Insulator creepage distance ratio | ≥3.1cm/kV (IV Level pollution area) |
| Rated current | 630/1250/1600/2000/2500/3150A |
| (4S)Rated short circuit current | 20kA/31.5kA/40kA |
| Rated current peak tolerance | 50kA/80kA/100kA |
| Across the isolating distance | 500~550mm |
| Phase to phase distance | 1200mm |
Substation maintenance: isolate the 35kV busbar, transformer neutral point, and incoming and outgoing line circuits.
New energy station: wind/photovoltaic booster station line segmentation and equipment maintenance isolation.
Industrial power distribution: power switching and protection for high energy consumption scenarios such as metallurgy and chemical industry
