SF6 Switch

PVI负载断开与故障中断开关设备

G&W Electric型号PVI垫装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。PVI可以配置为故障中断路的1相或3相工作。这些开关设计用于电压最高38kV、630A负载断路和连续电流的三相系统,具有12.5kA和20kA对称故障中断额定值。PVI是G&W Electric最灵活的开关类型之一,因为它可以选择前置可访问开关操作员和套管(前置接入),以及前后两端接入开关,以替代现有的垫状安装空气设备。

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。了解更多关于PVI垫装开关如何整合进我们的先进 开关设备 解决方案,以提升电力分配的灵活性和可靠性。

功能和优点

  • 建设 – 配备前置可访问开关操作员和套管,或配备前后操作员及套管,用于更换现有的垫座空气或油绝缘设备。拱顶结构也可选配顶部或底部衬套,或顶部可接入操作员和衬套。

  • 故障中断 – 单相或三相故障中断,最高可达20kA,并可选择工业曲线,包括熔断器仿真曲线。操作手柄可配置为单相或三相手动操作。

  • 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。多种继电器如SEL、ABB和GE均可通过G&W编程和箱体结构实现。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 – 载荷断裂通道配备可见断裂,可查看开闭位置。

  • 电压感应 – 所有方式均配备集成电压感应功能,可配合电压指示面板测定同相状态,或与继电器配合使用,精度最高可达1%。

Configurations Chart for PVI Front Access

# of WaysOne-line Diagram (Horizontal)Voltage Class (kV)Catalog NumberApproximate
Width* in. (mm)Wt. w/SF6 lbs (kg)
4F15PVI20-376-12-4F47.5 (1207)1500 (682)
25PVI20-386-12-4F
35PVI20-396-12-4F
5F15PVI21-376-12-5F47.5 (1207)1500 (705)
25PVI21-386-12-5F
35PVI21-396-12-5F
6F15PVI32-376-12-6F62.5 (1588)1920 (873)
25PVI32-386-12-6F
35PVI32-396-12-6F
7F15PVI31-376-12-7F62.5 (1588)2050 (932)
25PVI31-386-12-7F
35PVI31-396-12-7F
9F15PVI42-376-12-9F77.5 (1969)2300 (1045)
25PVI42-386-12-9F
35PVI42-396-12-9F
11F15PVI43-376-12-11F77.5 (1969)2400 (1091)
25PVI43-386-12-11F
35PVI43-396-12-11F
12F15PVI41-376-12-12F77.5 (1969)2400 (1091)
25PVI41-386-12-12F
35PVI41-396-12-12F
43F15PVI43-376-12-43F-BT101.0 (2565)2700 (1227)
25PVI43-386-12-43F-BT
51F15PVI51-376-12-51F92.5 (2350)2900 (1318)
25PVI51-386-12-51F
35PVI51-396-12-51F
52F15PVI52-376-12-52F92.5 (2350)2800 (1273)
25PVI52-386-12-52F
35PVI52-396-12-52F
53F15PVI53-376-12-53F92.5 (2350)2750 (1250)
25PVI53-386-12-53F
35PVI53-396-12-53F
54F15PVI54-376-12-54F92.5 (2350)2650 (1205)
25PVI54-386-12-54F
35PVI54-396-12-53F
62F15PVI62-376-12-62F107.5 (2731)3300 (1500)
25PVI62-386-12-62F
63F15PVI63-376-12–63F107.5 (2731)3200 (1455)
25PVI63-386-12-63F
35PVI63-396-12-63F
64F15PVI64-376-12-64F107.5 (2731)3100 (1409)
25PVI64-386-12-64F
35PVI64-396-12-64F
65F15PVI65-376-12-65F107.5 (2731)3000 (1364)
25PVI65-386-12-65F
35PVI65-396-12-65F
72F15PVI72-376-12-72F104.3 (2648)3850 (1750)
25PVI72-386-12-72F
Approximate Height: 65″ (1651mm), Approximate Depth = 55″ (1397mm)
Bushing Height: 48″ (1224mm)

Configurations Chart for PVI Front & Rear Access

# of WaysOne-line Diagram (Horizontal)Voltage Class (kV)Catalog NumberApproximate
Width* in. (mm)Wt. w/SF6 lbs (kg)
415PVI20-376-12-444.5 (1130)950 (432)
25PVI20-386-12-4
35PVI20-396-12-4
515PVI21-376-12-544.5 (1130)950 (432)
25PVI21-386-12-5
35PVI21-396-12-5
615PVI32-376-12-674
(1880)
2250 (1023)
25PVI32-386-12-6
35PVI32-396-12-6
715PVI31-376-12-774
(1880)
2250 (1023)
25PVI31-386-12-7
35PVI31-396-12-7
815PVI41-376-12-874
(1880)
2250 (1023)
25PVI41-386-12-8
35PVI41-396-12-8
915PVI42-376-12-974
(1880)
2300 (1043)
25PVI42-386-12-9
35PVI42-396-12-9
1115PVI43-376-12-1174
(1880)
2400 (1091)
25PVI43-386-12-11
35PVI43-396-12-11
1215PVI41-376-12-1274
(1880)
2400 (1091)
25PVI41-386-12-12
35PVI41-396-12-12
1415PVI42-376-12-5174
(1880)
2250 (1023)
25PVI42-386-12-51
35PVI51-396-12-51

PVI和VPVI的评级表

Voltage class15kV25kV35kV
Maximum design voltage15.5kV27kV38kV
Impulse level (BIL)110 kV125 kV150 kV
One minute withstand35 AC kV60 AC kV70 AC kV
One minute withstand, production test rating34 AC kV40 AC kV50 AC kV
15 minute withstand53 DC kV78 DC kV103 DC kV
Continuous and load break current630 Amps630 Amps630 Amps
Load Break Switch Momentary current40kA asym40kA asym40kA asym
Load Break Switch Fault close current, (3 times)40kA asym40kA asym40kA asym
Load Break Switch One second current25kA sym25kA sym25kA sym
Fault Interrupter Symmetrical interrupting rating12.5kA*12.5kA*12.5kA*
Load Break Switch Open gap withstand200kV200kV200kV
Load Break Switch 10 operation overload interrupting capability3000 Amps3000 Amps3000 Amps
Load Break Switch Operations load interrupting endurance at 600A120012001200
Mechanical endurance, operations200020002000
IEEE C37.60 Fault Interrupting Duty
Total number of fault interruptions: 116
Percent of Maximum Interrupting RatingNo. of Fault Interruptions
15 – 20%44
45 – 55%56
90 – 100%16
*20kA interrupting rating is available

有关配件及其他选项,请参见完整目录。

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