LPFI – 负载断路开关和故障断路开关
G&W Electric LPFI 型垫装开关具有负载断开和故障分断功能。故障分断器在完全密封的前端装置中提供电子控制、可复位的过流保护。开关设计用于电压高达 27kV、630A 负载分断和持续电流以及 12.5kA 对称故障分断额定值的三相系统。它们采用前端接入结构,占地面积小。
开关的设计符合 IEEE C37.72、C37.74 和 C37.60 标准,具有负载断开和故障分断能力。垫装外壳的设计和测试符合 IEEE C57.12.28 和 C57.12.29。
特色与优势
建筑 – 可提供紧凑型结构,可从正面接触开关操作和衬套。也有拱顶式结构,可从顶部接触到操作器和衬套。
故障中断 – 三相故障分断能力高达 12.5kA,可选择工业曲线,包括熔断器仿真曲线。
自动化 – 可通过便携式或永久安装的电机和控制器实现电机自动化。各种继电器(如 SEL、ABB 和 GE)均可使用 G&W Electric 编程和机柜结构。机柜可订购低压外壳,用于垫式安装、座式安装或 IP68 等级潜水型,用于拱顶安装开关设备。可提供用于自动源转移、保护或 LaZer 定制解决方案的编程。
可见的断裂 – 装载断开装置配有可视断开装置,以便查看打开和关闭位置。
电压感应 – 负载断路装置可与电压指示面板一起使用,以确定同相情况,或与继电器一起使用,精度高达 1%。
Configurations Chart for LPFI
| # of Ways | One-line Diagram (Horizontal) | Voltage Class (kV) | Catalog Number | ||
| Width* in. (mm) | Wt. w/SF6 lbs (kg) | ||||
| 5F | ![]() | 15 | LPFI21-376-12-5F | 43.5 (1111) | 1475 (670) |
| 25 | LPFI21-386-12-5F | ||||
| 6F | ![]() | 15 | LPFI32-376-12-6F | 56.3 (1429) | 1775 (807) |
| 25 | LPFI32-386-12-6F | ||||
| 7F | ![]() | 15 | LPFI31-376-12-7F | 55.7 (1415) | 2100 (995) |
| 25 | LPFI31-386-12-7F | ||||
| 9F | ![]() | 15 | LPFI42-376-12-9F | 68.3 (1734) | 2100 (995) |
| 25 | LPFI42-386-12-9F | ||||
| 11F | ![]() | 15 | LPFI43-376-12-11F | 68.8 (1746) | 2075 (943) |
| 25 | LPFI43-386-12-11F | ||||
| 12F | ![]() | 15 | LPFI41-376-12-12F | 67.8 (1721) | 2150 (977) |
| 25 | LPFI41-386-12-12F | ||||
| 43F | ![]() | 15 | LPFI43-376-12-43F-BT | 80.2 (2037) | 2300 (1045) |
| 25 | LPFI43-386-12-43F-BT | ||||
| 51F | ![]() | 15 | LPFI51-376-12-51F | 79.7 (2025) | 2600 (1182) |
| 25 | LPFI51-386-12-51F | ||||
| 52F | ![]() | 15 | LPFI52-376-12-52F | 80.3 (2038) | 2525 (1148) |
| 25 | LPFI52-386-12-52F | ||||
| 53F | ![]() | 15 | LPFI53-376-12-53F | 80.8 (2051) | 2450 (1114) |
| 25 | LPFI53-386-12-53F | ||||
| 54F | ![]() | 15 | LPFI54-376-12-54F | 81.3 (2064) | 2400 (1091) |
| 25 | LPFI54-386-12-54F | ||||
| 62F | ![]() | 15 | LPFI62-376-12-62F | 92.3 (2343) | 2800 (1273) |
| 25 | LPFI62-386-12-62F | ||||
| 63F | ![]() | 15 | LPFI63-376-12-63F | 92.8 (2356) | 2750 (1250) |
| 25 | LPFI63-386-12-63F | ||||
| 64F | ![]() | 15 | LPFI64-376-12-64F | 93.3 (2369) | 2700 (1227) |
| 25 | LPFI64-386-12-64F | ||||
| 65F | ![]() | 15 | LPFI65-376-12-65F | 93.7 (2381) | 2650 (1205) |
| 25 | LPFI65-386-12-65F | ||||
| 72F | ![]() | 15 | LPFI72-376-12-72F | 104.3 (2648) | 3100 (1409) |
| 25 | LPFI72-386-12-72F | ||||
| Approximate Height: 61″ (1549mm), Approximate Depth = 54″ (1372mm) | |||||
Configuration Chart for VLPFI
| Model | One-line Diagram (Horizontal) | Voltage Class (kV) | Catalog Number | ||
| Width* in. (mm) | Wt. w/SF6 lbs (kg) | ||||
| 5F | ![]() | 15 | VLPFI21-376-12-5F | 45 (1149) | 1025 (466) |
| 25 | VLPFI21-386-12-5F | ||||
| 6F | ![]() | 15 | VLPFI32-376-12-6F | 57.5 (1467) | 1250 (568) |
| 25 | VLPFI32-386-12-6F | ||||
| 7F | ![]() | 15 | VLPFI31-376-12-7F | 57 (1454) | 1300 (591) |
| 25 | VLPFI31-386-12-7F | ||||
| 9F | ![]() | 15 | VLPFI42-376-12-9F | 69.5 (1772) | 1350 (614) |
| 25 | VLPFI42-386-12-9F | ||||
| 11F | ![]() | 15 | VLPFI43-376-12-11F | 70 (1784) | 1325 (602) |
| 25 | VLPFI43-386-12-11F | ||||
| 12F | ![]() | 15 | VLPFI41-376-12-12F | 69 (1759) | 1400 (636) |
| 25 | VLPFI41-386-12-12F | #rowspan##rowspan# | |||
| 43F | ![]() | 15 | VLPFI43-376-12-43F | 89 (2261) | 1800 (818) |
| 25 | VLPFI43-386-12-43F | ||||
| 51F | ![]() | 15 | VLPFI51-376-12-51F | 81 (2064) | 1950 (886) |
| 25 | VLPFI51-386-12-51F | ||||
| 52F | ![]() | 15 | VLPFI52-376-12-52F | 81.5 (2064) | 1875 (852) |
| 25 | VLPFI52-386-12-52F | ||||
| 53F | ![]() | 15 | VLPFI53-376-12-53F | 82 (2089) | 1800 (818) |
| 25 | VLPFI53-386-12-53F | ||||
| 54F | ![]() | 15 | VLPFI54-376-12-54F | 82.5 (2102) | 1750 (795) |
| 25 | VLPFI54-386-12-54F | ||||
| 62F | ![]() | 15 | VLPFI62-376-12-62F | 93.5 (2381) | 2000 (909) |
| 25 | VLPFI62-386-12-62F | ||||
| 63F | ![]() | 15 | VLPFI63-376-12-63F | 94 (2394) | 1950 (886) |
| 25 | VLPFI63-386-12-63F | ||||
| 64F | ![]() | 15 | VLPFI64-376-12-64F | 94.5 (2407) | 1900 (864) |
| 25 | VLPFI64-386-12-64F | ||||
| 65F | ![]() | 15 | VLPFI65-376-12-65F | 95 (2419) | 1850 (841) |
| 25 | VLPFI65-386-12-65F | ||||
| 72F | ![]() | 15 | VLPFI72-376-12-72F | 105.5 (2680) | 2000 (909) |
| 25 | VLPFI72-386-12-72F | ||||
| Approximate Height: 31″ (787mm), Approximate Depth = 28″ (711mm) | |||||
Ratings Chart for LPFI
| Voltage class | 15kV | 25kV |
| Maximum design voltage | 15.5kV | 27kV |
| Impulse level (BIL) | 110kV | 125kV |
| One minute withstand | 35AC kV | 60AC kV |
| One minute withstand, production test rating | 34AC kV | 40AC kV |
| 15 minute withstand | 53DC kV | 78DC kV |
| Continuous and load break current | 630 Amps | 630 Amps |
| Load Break Switch Momentary current | 40kA asym | 40kA asym |
| Load Break Switch Fault close current, (3 times) | 40kA asym | 40kA asym |
| Load Break Switch One second current | 25kA asym | 25kA asym |
| Fault Interrupter Symmetrical interrupting rating | 12.5kA | 12.5kA |
| Load Break Switch Open gap withstand | 200kV | 200kV |
| Load Break Switch 10 operation overload interrupting capability | 3000 Amps | 3000 Amps |
| Operations load interrupting endurance at 600A for Load Break Switch | 1200 | 1200 |
| Mechanical endurance, operations | 2000 | 2000 |
Total number of fault interruptions: 116 | ||
| Percent of Maximum Interrupting Rating | Approx. Interrupting Current, Amps | |
| 15 – 20% | 2,000 | |
| 45 – 55% | 6,000 | |
| 90 – 100% | 12,500 | |
Ratings Chart for VLPFI
| Voltage Class | 15kV | 25kV |
| Maximum design voltage | 15.5kV | 27kV |
| Impulse level (BIL) | 110kV | 125kV |
| One minute withstand | 35 AC kV | 60 AC kV |
| One minute withstand, production test rating | 34 AC kV | 40 AC kV |
| 15 minute withstand | 53 DC kV | 78 DC kV |
| Continuous and load break current | 630 Amps | 630 Amps |
| Momentary current | 40kA asym | 40kA asym |
| Fault close current, (3 times) | 40kA asym | 40kA asym |
| One second short circuit current | 25kA asym | 25kA asym |
| Fault Interrupter Symmetrical interrupting rating | 12.5kA | 12.5kA |
| Operations load interrupting endurance (15kV) at 600A | 1200 | 1200 |
| Mechanical endurance, operations | 2000 | 2000 |
Total number of fault interruptions: 116 | ||
| Percent of Maximum Interrupting Rating | Approx. Interrupting Current, Amps | No. of Fault Interruptions |
| 15 – 20% | 2,000 | 44 |
| 45 – 55% | 6,000 | 56 |
| 90 – 100% | 12,500 | 16 |
有关配件和其他选项,请参阅完整目录
Download product brochures, article, white paper and case study:
产品资料
- Gas Insulated Switchgear – Padmount
- Gas Insulated Switching Solutions Brochure
- Gas Insulated Vault Switches
- Vacuum Interrupter (VI Control)
应用指南
案例研究
- Airport Feeder Restoration
- Campus Automated Fault Detection, Isolation, and Restoration Package
- Industrial Manufacturing Feeder Restoration
- University Network Upgrade with Automation































