SF6 Switch

PVI – 负载断路开关和故障断路

G&W Electric PVI 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设备中提供电子控制、可复位的过流保护。PVI 可配置为故障分断方式的单相或三相操作。开关设计用于电压高达 38kV、630A 负载分断和连续电流的三相系统，具有 12.5kA 和 20kA 对称故障分断额定值。PVI 是 G&W Electric 最通用的开关类型之一，因为它既可以订购前端接入的开关操作器和套管（前端接入），也可以订购前端和后端接入的开关，以取代现有的垫装空气齿轮装置。

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。

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功能和优点

  • 建筑 – 可提供正面开关操作器和衬套，或前后操作器和衬套，用于替换现有的垫装空气或油绝缘设备。拱顶结构还可提供顶部或底部衬套，或从顶部进入操作装置和衬套。

  • 故障中断 – 单相或三相故障分断能力高达 20kA，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 – 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 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。可为自动源转移、保护或 LaZer 定制解决方案进行编程。

  • 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 – 所有方式都有内置电压感应器，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 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 的评级图

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

有关配件和其他选项，请参阅完整目录。

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