概述:
GW4-12(15,40.5,72.5)系列户外高压交流隔离开关适用于装置在户外交流50Hz、额定电压分别为12kV和40.5kV的电力系统中,供线路在有电压、无负载时作为开合电路之用。产品符合GB1985及其他相关标准的要求。
结构特点:
隔离开关由底座、绝缘支柱及导电部分以及操动机构等组成。每极有两个支柱,每个支柱上端各装有导电闸刀,两侧闸刀触头接触处在两支柱的中间部位。支柱的下端各装有轴承套,在操动机构的带动下,可使闸刀作水平旋转90°从而达到分合闸之要求。
隔离开关为单极型,也可通过连杆将三极连成能够联动的三极型式。配用CS11型或CS8-6D型手动机构操作。其中CS17用于带双接地装置的隔离开关(可据需要配电动机构)。
本隔离开关结构合理,操动灵活自如;可单极,也可三极使用,安装方便;触刀开距大,绝缘安全可靠。还可根据用户需要,不接地或配装单边接地或双接地均可。
正常使用条件:
◇海拔:不超过3000m;
◇周围空气温度上限40℃,下限-40℃;
◇风速不超过35m/s;
◇不得有导电尘埃或化学腐蚀气体以及剧烈振动;
◇没有火灾及爆炸危险的场所;
◇污秽等级不超过Ⅲ级;
◇地震烈度不超过8度。
主要技术参数:
型号 | 额定电压(kV) | 额定电流(A) | 峰值耐受电流(kA) | 4s短时耐受电流(kA) |
GW4-12 | 12 | 200 | 40 | 16 |
400 | 50 | 20 | ||
630 | 50 | 20 | ||
1000 | 63 | 25 | ||
1250 | 63 | 25 | ||
GW4-40.5D | 40.5 | 400 | 50 | 20 |
630 | 50 | 20 | ||
1000 | 63 | 25 | ||
1250 | 80 | 31.5 |
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