Rated voltage: 126kV, suitable for three-phase AC 50Hz high-voltage transmission system, supports outdoor complex environment operation
A double column horizontal rotating design, it consists of an insulated pillar, a conductive switch blade, a base, and an operating mechanism. The switch blade moves horizontally at a constant speed when it is opened and closed, with strong ice breaking ability
The 126kV GW5 isolation switch, with high insulation strength, modular design, and adaptability to harsh environments, has become the core equipment for safe isolation of high-voltage power grids, especially suitable for high pollution industrial areas and wind/photovoltaic booster stations.
| Rated voltage | 126kV(138kV) |
| Rated lightning impulse voltage(peak value) | To earth:550kV Across the isolating:630kV |
| 1 min rated power frequency voltage(virtual value) | To earth:230kV Across the isolating:265KV |
| 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 | 1140~1530mm |
| Phase to phase distance | 2000~2500mm |
Transmission system: 126kV substation busbar segmentation, transformer neutral point isolation, and line no-load switching.
Equipment maintenance: Provide visible breakpoints during circuit breaker maintenance to ensure the safety of operators.
Industrial power distribution: power isolation and protection of high-voltage distribution systems in large industrial and mining enterprises
