国产在线第一页 I 国产盗摄精品一区二区三区在线 I 日韩网红少妇无码视频香港 I 国产黄站 I 一区在线不卡 I 99久久精品免费看国产 I 法国伦理少妇愉情 I 亚洲美女尤物影院 I 性一交一乱一伧国产女士spa I 欧美日韩激情在线 I 俺去俺来也www色官网 I 午夜视频免费在线 I 久久人人99 I 天堂综合网久久 I 在线视频国产一区 I 中国美女屁股眼交3 I 首页av在线 I 午夜av在线免费 I 亚洲 国产 日韩 欧美 在线 99 I 亚洲a人 I 朝桐光在线视频 I 色噜噜av男人的天堂 I 91社区在线播放 I 高清无打码 I 黑人精品无码一区二区三区 I 久久久www成人免费精品 I 少妇高潮一区二区三区99 I 在线播放成人

ZW32-12F Outdoor high-voltage AC dividing vacuum circuit breaker

Medium voltage components   

ZW32-12F type outdoor high-voltage AC dividing circuit breaker is a new intelligent product developed in ZW32-12, consisting of three major parts: vacuum circuit breaker body, intelligent controller and external voltage transformer, the product is suitable for use in 10kV city network and agricultural network overhead ring network lines as sectional isolation switch and contact switch, which can realize automatic switching device for load deployment in ring network lines, and in large users The product is suitable for use as a sectional disconnector and contact switch in overhead ring network lines of 10kV urban and agricultural networks, and as an automatic switching device for load deployment of ring network lines, and as a demarcation switch (commonly known as "open-door dog") in branch lines of large users. The boundary breaker has protection and control functions and can reliably judge and detect the zero sequence current in the boundary to automatically remove single-phase earth faults and phase-to-phase short-circuit faults.