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TNI负载断开与故障中断开关设备

作为腐蚀环境和潜水应用中经过验证的解决方案,G&W Electric型号TNI垫装开关具备负载断开和故障中断功能,且双向均具可见断路和集成接地位置。这样就不需要处理任何高压连接来接地电缆。高压连接处位于开关操作员的另一侧,以进一步隔离操作员免受高压影响。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38kV、630A负载断路和连续电流的三相系统,具有12.5kA、20kA和25kA对称故障中断额定值。

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TNI垫装开关如何整合进我们的先进 开关 设备解决方案,为要求严苛的环境提供耐用性和可靠性。

功能和优点

  • 建设 – 配备前置可访问开关操作员和后置衬套。拱形结构也可选用顶部或底部衬套。

  • 故障中断 – 三相故障中断,最高可达25kA,并可选择工业曲线,包括熔断器仿真曲线。

  • 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%。

  • 可见断裂 – 所有航行都配备可见断裂,可查看开启、关闭和地面位置。

  • 地面位置 – 所有方向均集成接地位置,避免使用高压元件来接地电缆。

  • 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。

Configurations Chart for TNI

ModelOne-line Diagram (Horizontal)Voltage Class (kV)Catalog Number
Approximate
Width* in. (mm)Wt. w/SF6 lbs (kg)
5
15TNI21-376-12-5L51 (1295)1725 (782)
25TNI21-386-12-5L
35TNI21-396-12-5L
6
15TNI32-376-12-6L69 (1753)2900 (1315)
25TNI32-386-12-6L
35TNI32-396-12-6L
7
15TNI31-376-12-7L2670 (1211)
25TNI31-386-12-7L
35TNI31-396-12-7L
9
15TNI42-376-12-9L88 (2235)3170 (1437)
25TNI42-386-12-9L
35TNI42-396-12-9L
11
15TNI43-376-12-11L3095 (1403)
25TNI43-386-12-11L
35TNI43-396-12-11L
12
15TNI41-376-12-12L3245 (1471)
25TNI41-386-12-12L
35TNI41-396-12-12L
51
15TNI51-376-12-51L106 (2692)3840 (1741)
25TNI51-386-12-51L
35TNI51-396-12-51L
52
15TNI52-376-12-52L106 (1753)3735 (1698)
25TNI52-386-12-52L
35TNI52-396-12-52L
53
15TNI53-376-12-53L3690 (3200)
25TNI53-386-12-53L
35TNI53-396-12-53L
54
15TNI54-376-12-54L
25TNI54-386-12-54L
35TNI54-396-12-54L
62
15TNI62-376-12-62L124 (3150)4340 (1969)
25TNI62-386-12-62L
35TNI62-396-12-62L
63
15TNI63-376-12-63L4265 (1935)
25TNI63-386-12-63L
35TNI63-396-12-63L
64
15TNI64-376-12-64L4275 (1939)
25TNI64-386-12-64L
35TNI64-396-12-64L
65
15TNI65-376-12-65L
25TNI65-386-12-65L
35TNI65-396-12-65L
Approximate Height = 53″ (1346mm), Approximate Depth = 73″ (1854mm)

Configurations Chart for VTNI

ModelOne-line Diagram (Horizontal)Voltage Class (kV)Catalog Number
Approximate
Width* in. (mm)Wt. w/SF6 lbs (kg)
5
15VTNI21-376-12-5L46 (1168)1115 (507)
25VTNI21-386-12-5L
35VTNI21-396-12-5L
6
15VTNI32-376-12-6L65 (1651)1885 (857)
25VTNI32-386-12-6L
35VTNI32-396-12-6L
7
15VTNI31-376-12-7L1960 (891)
25VTNI31-386-12-7L
35VTNI31-396-12-7L
9
15VTNI42-376-12-9L88 (2235)2360 (1073)
25VTNI42-386-12-9L
35VTNI42-396-12-9L
11
15VTNI43-376-12-11L83 (2108)2285 (1039)
25VTNI43-386-12-11L
35VTNI43-396-12-11L
12
15VTNI41-376-12-12L2435 (1107)
25VTNI41-386-12-12L
35VTNI41-396-12-12L
51
15VTNI51-376-12-51L101 (2565)2930 (1332)
25VTNI51-386-12-51L
35VTNI51-396-12-51L
52
15VTNI52-376-12-52L2855 (1311)
25VTNI52-386-12-52L
35VTNI52-396-12-52L
53
15VTNI53-376-12-53L2780 (1264)
25VTNI53-386-12-53L
35VTNI53-396-12-53L
54
15VTNI54-376-12-54L2701 (1230)
25VTNI54-386-12-54L
35VTNI54-396-12-54L
62
15VTNI62-376-12-62L119 (3023)2430 (1105)
25VTNI62-386-12-62L
35VTNI62-396-12-62L
63
15VTNI63-376-12-63L2355 (1070)
25VTNI63-386-12-63L
35VTNI63-396-12-63L
64
15VTNI64-376-12-64L2280 (1036)
25VTNI64-386-12-64L
35VTNI64-396-12-64L
65
15VTNI65-376-12-65L2205 (1002)
25VTNI65-386-12-65L
35VTNI65-396-12-65L
Approximate Height = 42.5″ (1080mm), Approximate Depth = 36″ (914mm)

TNI和VTNI收视率图表

Voltage Class15kV25kV35kV
Maximum design voltage15.5kV27kV38kV
Impulse level (BIL)110kV125kV150kV
One minute withstand35 AC kV60 AC kV70 kV
One minute withstand, production test rating34 AC kV40 AC kV50 kV
15 minute withstand53 DC kV78 DC kV103 kV
Continuous and load break current630 Amps630 Amps630 Amps
Momentary current40kA asym40kA asym40kA asym
Fault close current, (3 times)32kA asym32kA asym32kA asym
One second current25kA asym25kA asym25kA asym
* Fault interrupting ratings12.5kA*12.5kA*12.5kA*
Mechanical endurance, operations200020002000
EEE 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 and 25kA options available

有关配件及其他选项,请参见完整目录。

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