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真空断路器
VED-12

VED-12 vacuum circuit breaker.jpg

VED-12 series indoor high voltage vacuum circuit breaker is suitable for 12kV air-insulated indoor

switchgear, used as protection and control unit of power equipment of industrial & mining enterprise. Due

to the super excellence, it is especially suitable for locations where requires the frequent operation under

rated working current or multiple breaking under short circuit breaking current. The circuit breaker adopts

the integrated design of operating mechanism and circuit breaker body, servers as not only fixed

installation, but also draw-out type equipped with a special propelling mechanism.

VED-12 has two main types. One is Draw-out type. Model No. is VED-12D. The other is Fixed type. Model

No. is VED-12F.

Phase distance 150mm , 210mm and 275mm.

Above choice all could be solid embedded pole type.

VED-12型户内交流高压真空断路器适用于12KV电力系统的户内开关设备,作为电网设备,工矿企业,动力设备的保护和控制单元. 系列抽出式手车功能单位与真空断路器等电力设备工程配套使用, 手车配置不同的一次元器件, 可分别具有母线联络,电能测量,电力设备过载或短路保护作用, 以及在系统检修时作为保护功能单位.

VED-12有固定式和抽屉式. 固定式型号为VED-12F, 抽屉式型号为VED-12D.

相间距可做150mm, 210mm 275mm.

以上均可做固封极柱.

Main specifications and technical parameters主要技术参数

No.

Item项目

Unit单位

Parameter参数

1

Rated voltage额定电压

KV

12

2

Rated frequency额定频率

Hz

50

3

Rated lightning impulse withstand voltage (1 min)

额定雷电冲击耐受电压(1分钟)

KV

75

4

Rated short-time power frequency withstand voltage (1 min)额定短时工频耐受电压(1分钟)

KV

42

5

Rated short-circuit breaking current额定短路开断电流

KA

20

25

31.5

40

6

Rated current额定电流

A

630 1000

1250

630 1000

1250 1600

1250 1600 2000 2500

1600 2500 3150 4000

7

Rated peak withstand current额定峰值耐受电流

KA

50

63

80

100

8

Rated short time withstand current (4S)额定短时耐受电流4S

KA

20

25

31.5

40

9

Power frequency withstand voltage of secondary circuit (1min)二次回路工频耐受电压(1分钟)

V

2000

10

Rated operation sequence额定操作顺序


O-0.3s-CO-180s-CO

O-180s-CO-180s-CO+

11

Rated breaking current of (single/back to back)capacitor bank额定单个/背对背电容器组开断电流

A

630/400

800/400

12

Opening time(rated voltage)分闸时间(额定电压)

ms

20~50

13

Closing time(rated voltage)合闸时间(额定电压)

ms

30~70

14

Rated short-time current breaking times额定短路电流开断次数

Times

50

30

15

Mechanical life机械寿命

Times

30000

16

Rated opening/closing voltage额定关/合电压

V

AC110,220; DC110,220

17

Rated voltage of energy-storage motor储能电机的额定电压

V

AC110,220; DC110,220