SF6 Switch

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。

功能和优点

  • 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 等级潜水式安装的拱顶安装开关柜。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 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 的评级图

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

有关配件和其他选项,请参阅完整目录

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