SF6负荷开关
SPG-24 Outdoor SF6 Load Break Switch (24kV)
The SPG-24 is a 24kV outdoor SF6 load break switch for 20kV distribution systems. Enhanced insulation levels with 125/145kV lightning impulse withstand. Same proven SF6 pressure-assisted arc blowing technology in 304 stainless steel housing. Available in 630A and 1250A rated current variants. Features all safety interlocks (low pressure, manual, explosion-proof relief). Silicone rubber/epoxy resin insulation with APG vacuum casting. Every unit X-ray inspected. 5,000 mechanical operations life.
产品特点
- 额定电压24kV——适用于20kV配电系统
- 增强绝缘：雷电冲击耐受125/145kV
- 可选630A和1250A两种额定电流规格
- SF6压气式吹弧灭弧——可靠性高
- 优质304不锈钢模压壳体
- 低气压联锁：0.03-0.04 MPa，带视觉报警
- 手动联锁+高压防爆泄压装置
- 硅橡胶/环氧树脂绝缘（APG真空浇注）
- 三角形弹簧机构密封于SF6壳体内——免维护
- 每只成品逐一X光检查
- 机械寿命：5,000次
- 可配FTU实现20kV配电自动化
技术参数
| Rated Voltage | 24 kV |
| Rated Frequency | 50/60 Hz |
| Rated Current | 630 / 1250 A |
| Rated Breaking Load Current | 630 / 1250 A |
| Rated Closed Breaking Current | 630 / 1250 A |
| Rated Short-Circuit Making Current (peak) | 50 / 63 kA |
| Rated Short-Time Withstand Current | 20kA/4s, 25kA/4s |
| Rated Cable-Charging Breaking Current | 25 A |
| Rated Earth Fault Breaking Current | 48 A |
| Lightning Impulse Withstand (phase-phase/earth) | 125 kV |
| Lightning Impulse Withstand (across isolating distance) | 145 kV |
| Power Frequency Withstand 1min (phase-phase/earth) | 65 kV |
| Power Frequency Withstand 1min (across isolating distance) | 79 kV |
| Rain Test Withstand Voltage | 50 kV |
| Rated Working Pressure | 0.20 MPa |
| Low Pressure Interlock | 0.03-0.04 MPa |
| High Pressure Explosion Relief | 0.4-0.6 MPa |
| Annual Leak Rate | ≤0.5% |
| SF6 Water Content | ≤150 PPM |
| Circuit Resistance (per phase) | ≤150 μΩ |
| Contact Distance | 41±3 mm |
| Contact Overtravel | 22±2 mm |
| Opening Speed | 1.9±0.2 m/s |
| Closing Speed | 1.9±0.2 m/s |
| Contact Closing Bounce Time | ≤3 ms |
| Phase-to-Phase Distance | 250±3 mm |
| Three-Phase Synchronization | ≤3 ms |
| Closing Time | <10 s |
| Opening Time | <10 s |
| Energy Storage Motor Power | 40 W |
| Mechanical Life | 5,000 operations |
| Operation Voltage | DC220V / DC24V / AC220V |
| Weight (Manual / Automatic) | 115 kg / 135 kg |
| Temperature Range | -25°C to +40°C |
应用领域
Urban distribution network sectionalizing (20kV)Tie switch applications for 20kV systemsRural distribution system control switchingRing network fault detection, isolation, and alarmDistribution automation with FTU
执行标准
IEC 62271-103GB/T 10963
12小时内回复ISO / CE / CCC 认证支持OEM定制
常见问题
SPG-24 Outdoor SF6 Load Break Switch (24kV)的额定电压是多少？
SPG-24 Outdoor SF6 Load Break Switch (24kV)的额定电压为24 kV。完整电气参数请参阅上方技术规格表。
SPG-24 Outdoor SF6 Load Break Switch (24kV)的交货周期是多久？
SPG-24 Outdoor SF6 Load Break Switch (24kV)的标准交货周期约为30天。大批量订单或定制配置可能需要额外生产时间。请联系我们的销售团队获取准确的交货时间。
SPG-24 Outdoor SF6 Load Break Switch (24kV)可以进行OEM定制吗？
可以，耐吉电气为SPG-24 Outdoor SF6 Load Break Switch (24kV)提供OEM和定制制造服务。我们可以根据项目需求调整规格、品牌和配置。最低起订量要求适用。
SPG-24 Outdoor SF6 Load Break Switch (24kV)符合哪些标准？
SPG-24 Outdoor SF6 Load Break Switch (24kV)按照IEC 62271-103, GB/T 10963标准设计和测试。所有产品出厂前均经过严格测试。