SF6 Switch

LPFI负载断开与故障中断开关设备

G&W Electric型号的低功率导电导板开关具备负载断开和故障中断功能。故障断路器在完全密封、死前端的设备中提供电子控制、可复位的超流保护。这些开关设计用于电压最高27kV、630A负载断路、连续电流和12.5kA对称故障中断额定值的三相系统。由于前置通道结构,它们的占地面积紧凑。

这些交换机按照IEEE C37.72、C37.74和C37.60设计,具备负载断开和故障中断能力。垫装外壳设计并测试符合IEEE C57.12.28和C57.12.29标准。探索LPFI焊盘开关如何为我们先进的 开关设备 解决方案提供可靠且节省空间的电力分配做出贡献。

功能和优点

  • 建设 可选紧凑型结构,前置可访问开关操作员和套管。拱顶结构也可选,顶部可接入操作器和衬套。

  • 故障中断 三相故障中断最高可达12.5kA,并可选择工业曲线,包括熔断器仿真曲线。

  • 自动化 适用于电动机自动化,配备便携式或永久安装的电机和控制装置。G&W Electric的编程和箱体制造提供了多种继电器,如SEL、ABB和GE。柜体可订购为低压外壳,用于安装垫、底座或IP68级潜水器,用于穹顶安装开关设备。提供自动源传输、保护或激光器定制解决方案的编程。

  • 可见断裂 负荷断裂通道配备了可见的断裂,以便观察开合和关闭的各位置。

  • 电压感应 负载断开槽配有集成电压感应功能,可配合电压指示面板测定同相状态,或与继电器配合使用,精度可达1%。

Configurations Chart for LPFI

# of WaysOne-line Diagram (Horizontal)Voltage Class (kV)Catalog Number
Approximate
Width* in. (mm)Wt. w/SF6 lbs (kg)
5F
15LPFI21-376-12-5F43.5 (1111)1475 (670)
25LPFI21-386-12-5F
6F
15LPFI32-376-12-6F56.3 (1429)1775 (807)
25LPFI32-386-12-6F
7F
15LPFI31-376-12-7F55.7 (1415)2100 (995)
25LPFI31-386-12-7F
9F
15LPFI42-376-12-9F68.3 (1734)2100 (995)
25LPFI42-386-12-9F
11F
15LPFI43-376-12-11F68.8 (1746)2075 (943)
25LPFI43-386-12-11F
12F
15LPFI41-376-12-12F67.8 (1721)2150 (977)
25LPFI41-386-12-12F
43F
15LPFI43-376-12-43F-BT80.2 (2037)2300 (1045)
25LPFI43-386-12-43F-BT
51F
15LPFI51-376-12-51F79.7 (2025)2600 (1182)
25LPFI51-386-12-51F
52F
15LPFI52-376-12-52F80.3 (2038)2525 (1148)
25LPFI52-386-12-52F
53F
15LPFI53-376-12-53F80.8 (2051)2450 (1114)
25LPFI53-386-12-53F
54F
15LPFI54-376-12-54F81.3 (2064)2400 (1091)
25LPFI54-386-12-54F
62F
15LPFI62-376-12-62F92.3 (2343)2800 (1273)
25LPFI62-386-12-62F
63F
15LPFI63-376-12-63F92.8 (2356)2750 (1250)
25LPFI63-386-12-63F
64F
15LPFI64-376-12-64F93.3 (2369)2700 (1227)
25LPFI64-386-12-64F
65F
15LPFI65-376-12-65F93.7 (2381)2650 (1205)
25LPFI65-386-12-65F
72F
15LPFI72-376-12-72F104.3 (2648)3100 (1409)
25LPFI72-386-12-72F
Approximate Height: 61″ (1549mm), Approximate Depth = 54″ (1372mm)

Configuration Chart for VLPFI

ModelOne-line Diagram (Horizontal)Voltage Class (kV)Catalog Number
Approximate
Width* in. (mm)Wt. w/SF6 lbs (kg)
5F
15VLPFI21-376-12-5F45 (1149)1025 (466)
25VLPFI21-386-12-5F
6F
15VLPFI32-376-12-6F57.5 (1467)1250 (568)
25VLPFI32-386-12-6F
7F
15VLPFI31-376-12-7F57 (1454)1300 (591)
25VLPFI31-386-12-7F
9F
15VLPFI42-376-12-9F69.5 (1772)1350 (614)
25VLPFI42-386-12-9F
11F
15VLPFI43-376-12-11F70 (1784)1325 (602)
25VLPFI43-386-12-11F
12F
15VLPFI41-376-12-12F69 (1759)1400 (636)
25VLPFI41-386-12-12F#rowspan##rowspan#
43F
15VLPFI43-376-12-43F89 (2261)1800 (818)
25VLPFI43-386-12-43F
51F
15VLPFI51-376-12-51F81 (2064)1950 (886)
25VLPFI51-386-12-51F
52F
15VLPFI52-376-12-52F81.5 (2064)1875 (852)
25VLPFI52-386-12-52F
53F
15VLPFI53-376-12-53F82 (2089)1800 (818)
25VLPFI53-386-12-53F
54F
15VLPFI54-376-12-54F82.5 (2102)1750 (795)
25VLPFI54-386-12-54F
62F
15VLPFI62-376-12-62F93.5 (2381)2000 (909)
25VLPFI62-386-12-62F
63F
15VLPFI63-376-12-63F94 (2394)1950 (886)
25VLPFI63-386-12-63F
64F
15VLPFI64-376-12-64F94.5 (2407)1900 (864)
25VLPFI64-386-12-64F
65F
15VLPFI65-376-12-65F95 (2419)1850 (841)
25VLPFI65-386-12-65F
72F
15VLPFI72-376-12-72F105.5 (2680)2000 (909)
25VLPFI72-386-12-72F
Approximate Height: 31″ (787mm), Approximate Depth = 28″ (711mm)

LPFI和VLPFI的收视率表

Voltage class15kV25kV
Maximum design voltage15.5kV27kV
Impulse level (BIL)110kV125kV
One minute withstand35AC kV60AC kV
One minute withstand, production test rating34AC kV40AC kV
15 minute withstand53DC kV78DC kV
Continuous and load break current630 Amps630 Amps
Load Break Switch Momentary current40kA asym40kA asym
Load Break Switch Fault close current, (3 times)40kA asym40kA asym
Load Break Switch One second current25kA asym25kA asym
Fault Interrupter Symmetrical interrupting rating12.5kA12.5kA
Load Break Switch Open gap withstand200kV200kV
Load Break Switch 10 operation overload interrupting capability3000 Amps3000 Amps
Operations load interrupting endurance at 600A for Load Break Switch12001200
Mechanical endurance, operations20002000
IEEE C37.60 Fault Interrupting Duty
Total number of fault interruptions: 116
Percent of Maximum Interrupting RatingApprox. Interrupting Current, Amps
15 – 20%2,000
45 – 55%6,000
90 – 100%12,500

有关配件及其他选项,请参见完整目录

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