Fuse Switch Combination Panel, SF6 Gas Insulated Switchgear
Specifications
1. Fuse Switch Combination Panel,Ring Main Unit2. KEMA type test, IEC standards
3. ISO14000, IS09000
4. Free extensible
Fuse Combination Ring Main Unit Switchgear
- With the laser cutting and puching machines imported from TRUMPF(Germany), the accuracy of re-location can be 0.02mm; the cutting deviation can be less than 0.05mm, which ensures that before welding the gaps between plates of gas tank are smaller than 0.1mm
- The three-dimension and five-axis laser welding system, also from TRUMPF, with welding laser beam of 0.1mm and under protection of Helium gas, welds the stainless steel plates, the welding quality equals to bended steel plates, which ensure the gas tightness and uniformity of all gas tanks.
- The fully automatic and integral helium leak detection system, made by SEILER Vakuumtechnik GmbH, through detecting of Helium leakage, brings gas leakage rate per year down to less than 0.02%, ensuring the life span of gas tank of over 30 years.
Main Technial Data
| Description | Unit | 12kV | 24kV |
| power frequency withstand voltage(1min)phase to phase | kV | 42 | 50 |
| power frequency withstand voltage(1min)between open contacts | kV | 48 | 64 |
| Impulse withstand voltage(phase to phase/earth) | kV | 75 | 95 |
| Impulse withstand voltage(between open contacts) | kV | 85 | 110 |
| Rated frequency | Hz | 50,60 | 50,60 |
| Rated current | A | ≤125A | ≤100A |
| Rated transfer current | A | 1800 | 1400 |
| Mechanical lifetime | Ops | 5000 | 5000 |
| Protection Degree | IP4X | IP4X |
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