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概述 General

   手车是开关的核心部件之一,用钢板弯制焊接而成,底部装有四只滚轮,能沿水平方向移动,还装有接地触并没有、导向装置、锁定机构及手车进出摇机构装置。
手车是断路器手车、电压互感器手车、电压互感器辟雷器手车、所用变压器手车、隔离手车及妆地手车七种。
  The hand trolley is noe of key part in the swicth cabinet,which is welding and flexing mand by steel armor bpate, there are four idler wheels under the bottom of the trolley than can move along the horiaontal direction,It is composed of the grounding contact, oricnted device, locked framework and hand setup device of the trolley coming and going.
  The hand trolleys can divide into seven kinds,which are breaker hand trolley ,voltage mutual induction hand trolley, voltage mutual induction arrester hand trolley ,transformer hand trolley ,discommecting hand trolley and grounding hand trolley.

一次回路的电气设备技术参数
The technique parameter of primary loop electric equpment
1,ZN18-12真空断路器手车主要技术数据
ZN18-12 vacuum breaker hand trolley technique paramter

项目
Name
单位
Unit
数据
Data
额定电压
Rated voltage
kV
10
最高工作电压
Max.working voltage
kA
12
额定电流
Rated current
A
630、1250
额定频率
Rated frequency
Hz
50
最高工作电压下最大开断电流
Max.breaking current under the
kA
25**
4S 热稳定电流
4S heat-stabling current
kA
63
极限通过电流(动稳定电流)(峰值)
Limited passing current(moving stabilized current)(peak value)
kA
63
最高关合电流(峰值)
Max.closing current (peak valud )
kA
63

燃弧时间(不大于)
com bustion are time (not exceed)

ms
30
固有分闸时间(不大于)
Inherent breaking brake time (not exceed)
s
0.05
固有合闸时间(不大于)
Inherent closing brake time (not exceed)
s
0.05
作断流容量时操用循环
Cut-off capacity operation circle
分-0.3s-合 分-180s-合分
off-0.3S-on and off-180S-on snd off
电寿命
Electricity lofe
额定电流下(1250A)
Rated current 1250A
次(times)
10000
最大分断电流下(25A)
Max. breaking current 25A
次(times)
8.12
质量
Weight
kg
140*
机械寿命
Mechanical life-span
次(times)
10000

注:*参考数值;
    **电压低于10kV时开断电流不变。
说明:手车柜也可配用ZN3-10、ZN4-10、ZN5-10等真空断路器,其技术参数各不相同,不一一列出。
   Annotation: referenced numerical value;
  When the voltage is lower than 10kV,the breaking and closing current is not chaned.
   Explanation:the hand trolley cabinet can addort with ZN3-10、ZN4-10and ZN5-10vacuum breaker,the technique parameter is various and will not list noe by one.

 

 

 

 

 

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