GW4 series isolation switch includes models with a voltage level of 24kV, suitable for electrical isolation requirements in medium voltage distribution systems
The 24kV GW4 isolation switch balances functionality and economy in medium voltage scenarios through modular design and high reliability components, making it the preferred equipment for safe isolation in distribution systems
| Rated voltage | 15kV |
| Rated lightning impulse voltage (peak value) | To earth:95kV Across the isolating:105kV |
| 1 min rated power frequency voltage(virtual value) | To earth:45KV Across the isolating:50kV |
| 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 | 40kA |
| Across the isolating distance | 170mm |
| Phase to phase distance | 450mm |
Mainly used for electrical isolation under no-load current conditions in substations and industrial and mining enterprise distribution systems, supporting safe operation during line maintenance or equipment maintenance.
Working temperature range: -35 ℃ to+40 ℃ (can be extended to -40 ℃ in high-altitude regions).
Wind resistance: ≤ 34m/s ², ice cover thickness ≤ 10mm, suitable for moderately polluted areas (Level III)
Distribution system isolation: small substation incoming line side, distribution line segmentation point.
Equipment maintenance guarantee: When cooperating with circuit breaker maintenance, cut off the power supply to form a visible breakpoint.
Industrial site adaptation: Suitable for power distribution networks in industrial enterprises such as metallurgy and chemical engineering that require frequent operations and complex environments.
