| 详细介绍： 20kV户外高压隔离开关，GW4-24TQ（D）W型为轻力矩、免维护，户外高压隔离开关是频率为50HZ-60 HZ、20kV的户外高压电器设备，供高压线路在有电压无负载情况下进行换接，以及对被检修的高压母线、断路器等电器设备与带电的高压线路进行电气隔离之用。也可用于分、合很小的电容电流和电感电流。
GW4-24TQ(D) W outdoor high-voltage disconnector is outdoor high-voltage equipment with 50-60Hz frequency and 20kV,Characterized by light torque, free maintenance. It can be changed and connected for high-voltage line under voltage and no load conditions; it also can be electrically disconnected between the HV electrical equipments such as the overhaul of high voltage busbar, CB, etc. and high voltage cables, also can be used to open or close small capacitor current and conductive current.
二、使用环境条件Application Ambient Condition
1 海拔高度不超过3000m；
Altitude height is not more than 1000m.
2 环境温度：上限+40℃，下限－40℃；
Environment temperature is from-40℃to +40℃.
3 风速不超过40.5m/s;
Wind speed is not more than40.5m/s.
4 地震烈度不超过8度；
Earthquake intensity is not more than 8 grades.
5 绝缘子污秽等级：普通级为0级；防污型为III级；
Insulator’s pollution level:Normalclass is 0, anti-pollution is III level.
6 安装场所应无易燃物质、爆炸危险、化学腐蚀及剧烈震动。
Installation place where has no fire, explosion, chemical corrosion and sharp shakes.
三、 技术数据Technical Data
隔离开关的主要技术参数见下表
Main technical data of the disconnector as follows:
|
项目
Item
|
参数
Technical data
|
|
额定电压 Rated voltage
|
20 kV
|
|
最高工作电压 Max. work voltage
|
24 kV
|
|
额定绝缘水平
Rated
Insulation
level
|
一分钟工频耐受电压 (有效值)
1 min power frequency withstand voltage (value)
|
对地
To earth
|
50kV
|
|
断口
Fracture
|
60 kV
|
|
雷电冲击耐受电压 (峰值)
Lightning impulse withstand
voltage kV(peak value)
|
对地
To earth
|
125kV
|
|
断口
Fracture
|
145 kV
|
|
额定频率Rated frequency
|
50 or 60 Hz
|
|
额定电流Rated current
|
400
|
630 A
|
|
热稳定电流 (有效值)
The current of thermal stabilization (value)
|
12.5
|
20kA
|
|
动稳定电流 (峰值)
The current of dynamic stabilization (peak value)
|
31.5
|
50kA
|
|
接线端额定纵向机械负荷
Rated vertical mechanical loads of connection end
|
245N
|
|
配 用 机 构
Equipped mechanism
|
CS11、CS8-6D手动机构
CS11 or CS8-6D manual operation mechanism
|
CS8-6D手动机构manual mechanism
|
辅助开关极数 Pole number of auxiliary switch
|
一个八节 Eight for each
|
|
DSW4电磁锁 DSW4 electromagnetism lock
|
无 Nothing
|
| 
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