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概述 General
ZW8-12系列户外交流高压真空断路器系三相交流50Hz,户外高压开关设备,主要用于12KV农网和城网的电力系统,作为分、合负荷电流、过载电流及短路电流之用,也可用于其它类似场所。
Z概述 General
ZW8-12系列户外交流高压真空断路器系三相交流50Hz,户外高压开关设备,主要用于12KV农网和城网的电力系统,作为分、合负荷电流、过载电流及短路电流之用,也可用于其它类似场所。
ZW8-12series outdoor AC high-voltage vacuum breaket to three-phase AC 50Hz outdoor high-voltage switchgear,it is used for breaking and closing load current,over load current and short-circuit current in the 12kv power system of rural power net ,it is also applicablc for other similar locations.

使用环境条件 Service condition;
*环境温度:-30℃ -+40℃;
*海拔高度:2000m及以下;
*风压:不超过700Pa(相当于风速34m/s);
*无经常性剧烈振动.
*The circumstance temperature: -30℃ ~+40℃;
*The altiude:<2000m;
*The wind pressure ≤700Pa(wind speed 34m/s);
*The working situation without frequent violent.
主要技术参数 Technical parameter
断路器主要技术能数(见表1)Main echnical parameter of circuit breaker(see table 1)
序号
NO. |
项目
Item |
单位
Unit |
数据
Data |
| 1 |
触头开距
Switching distance of the contact |
mm |
11±1 |
| 2 |
触头超程
Contact exceed degree |
mm |
3±0.5 |
| 3 |
平均分闸速度
Average speed of breaking brake |
m/s |
10±.04 |
| 4 |
平均合闸速度
Average speed of colsing brake |
m/s |
0.65±0.15 |
| 5 |
合闸弹跳时间
Touch the bead and shut a floodgatc of time bourking |
ms |
≤2 |
| 6 |
三相分、合闸不同期性
Three-phase breaking intoshut a floodgate of time of bouncing |
ms |
≤2 |
| 7 |
合闸时间(配弹簧操动机构电动合闸)
Time of closing brake(Elestric closing with spring operation mechanism) |
s |
0.03~0.05 |
| 8 |
分闸时间
Time of breaking brake |
最高及额定操作电压
Opetate it under the voltage highest |
s |
0.03-0.05 |
最低操作电压
Opetate it under the voltage mosllow |
0.03-0.07 |
| 9 |
各相回路直流电阻
DC resistance of cach phase |
μΩ |
≤180 |
| 10 |
极间中心距离(箱内)S
Center distance between poles poles (in the box) |
mm |
175±2 |
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