3AF04/3AF05 27.5kV铁路用户外真空断路器

3AF04/3AF05 27.5kV Traction Outdoor Vacuum Circuit Breaker

产品特点 Feature

Alternative text

  • 27.5kV, 2500A, 31.5kA/4s

  • 符合最新的GB/JB标准

  • 单极/双极结构,瓷套管绝缘

  • 真空开断技术

  • 3AH3操作机构

  • 可选配外置电流互感器

  • 无SF6气体,极柱内充干燥空气防止凝露


Feature

  • 27.5kV, 2500A, 31.5kA/4s

  • Designed and tested according to GB standard, JB standard.

  • Live tank design, single pole / double pole, poreclain insulation.

  • Siemens vacuum interrupter (VI) application.

  • 3AH3 spring mechanism.

  • Optional external CTs for measurement and protection.

  • No SF6 gas inside.


技术参数 Technical Data

型      号    Type 

3AF04                   

3AF05                

额定电压    Rated Voltage

27.5kV

55/27.5kV

额定电流    Rated Current

2500A

2500A

额定频率    Rated Frequency

50Hz

50Hz

额定工频耐受电压

Power-frequency withstand voltage

相对地/断口间

To earth and between phases

95kV

95kV

相间

Across isolating distance

-

140kV

额定雷电冲击耐受电流 (峰值)

Lighting impulse withstand voltage(peak)

相对地/断口间

To earth and between phases

185kV

185kV *

相间

Across isolating distance

-

325kV

额定短路开断电流

Rated short-current breaking current

31.5kA

31.5kA

额定短路关合电流(峰值)

Rated short-current making current (peak)

80kA

80kA

额定短时耐受电流

Rated short circuit withstand current

31.5kA, 4s

31.5kA, 4s

额定操作顺序

Rated operation sequence

O-0.3s-180s-CO

O-0.3s-180s-CO

机械操作寿命

Mechanical endurance

10,000次

10,000次

运行条件

Working condition

-25℃~+40℃
-45℃~+40℃

-25℃~+40℃
-45℃~+40℃

防护等级

IP class

IP55

IP55

* 200kV BIL 可选。

* 200kV BIL available.