SummaryFLRN36 indoor AC high-voltage load break switch-fuse combination (combination in short)is a comprehensive and new combination app aratus produced on the bases of the mature experience in domestic and abroad. It is a complement apparatus of HXGN15-12/24 AC metal-enclosed ring main unit and it meet requirement of users in different power system. It has the advantages such as simple structure, easy maintenance, strong arc-extinction capability, high gap insulating level and high reliability. It accords with IEC62271-105, GB16926 & GB/T 11022 standards.
Ambient condition 1. Altitude: ≤1000m;
2. Ambient temperature: -25ºC ~+40ºC ;
3. Relative humidity: daily average≤95% , monthly average≤90% ;
4. Earthquake intensity: ≤8 degree;
5. Occasions without flammable and explosive matter, without corrosive chemical and frequent severe vibration
| Item NO. | Name | Unit | Technical parameters |
| Load break switch panel |
| 1 | Rated Voltage Un | kV | 12 | 24 | 36 |
| 2 | Rated Frequency | Hz | 50 | 50 | 50 |
| 3 | Rated Current | A | 630 | 630 | 630 |
| 4 | Rated Load Breaking Current | A | 630 | 630 | 630 |
| 5 | Rated Short Time Withstand Current(rms) | kA | 20 | 20 | 20 |
| 6 | Rated Short Time Duration | s | 3 | 3 | 3 |
| 7 | Rated Peak Withstand Current | kA | 50 | 50 | 50 |
| 8 | Rated Closed Switch - Off Current | A | 630 | 630 | 630 |
| 9 | Rated Cable Charging Breaking Current | A | 10 | 10 | 10 |
| 10 | Rated Active Load Breaking Current | A | 630 | 630 | 630 |
| 13 | Earthing Switch 2s Short Time Withstand Current | kA | 20 | 20 | 20 |
| 14 | Rated Short-Circuit Current Making Times | times | 2 | 2 | 2 |
| 15 | Rated Current Breaking Times | times | 10 | 10 | 10 |
| 16 | Mechanical Endurance | Load Break Switch | times | 3000 | 3000 | 3000 |
| Earthing Switch | times | 2000 | 2000 | 2000 |
| 17 | SF6 gas anual leakage rate≤ | /year | 0.10% | 0.10% | 0.10% |
| 18 | Rated Insulation Level | Unit | Technical parameters |
| 1min Power Frequency withstand voltage(rms) | On isolating distance | kV | 48 | 60 | 110 |
| Phase to Phase | kV | 42 | 50 | 85 |
| Phase to Earth | kV | 42 | 50 | 85 |
| Lightning impulse withstand voltage(peak) | On isolating distance | kV | 85 | 145 | 215 |
| Phase to Phase | kV | 75 | 125 | 185 |
| Phase to Earth | kV | 75 | 125 | 185 |
Complaint
