自拍视频网站-自拍视频网-自拍视频区-自拍视频啪-自拍视频精品-自拍欧美亚洲

歡迎來到金牛電氣
服務熱線:李琰:+86 13273771392
新聞資訊
新聞資訊
新聞資訊
出口型避雷器分類-南陽金牛電氣
時間:2022-07-21 15:33:07瀏覽次數:

About arrester classification and energy withstand testing is introduced: the line discharge classification is replaced by a classification based on repetitive charge transfer rating Qrs, thermal energy rating Withzz and thermal charge transfer rating Qth, respectively. The new concept clearly differentiates between impulse and thermal energy handling capability, which is reflected in the test procedures and minimum pass criteria.

The Definitions of these ratings are as follows:

  • Thermal Energy Rating, Wth: The energy, given in kJ/kV of Ur, which may be dissipated by an arrester or arrester section in a thermal recovery test without causing a thermal runaway.



  • Repetitive Charge Transfer Rating, Qrs: The charge, given in coulombs (C) in the form of a single event that can be transferred at least 20 times ( at time intervals that allow for cooling to ambient temperature ) through an arrester without causing mechanical failure or unacceptable electrical degradation to the MO resistors.



  • Thermal Charge Transfer Rating, Qth: The charge, given in coulombs (C) that may be transferred through an arrester or arrester section in a thermal recovery test without causing a thermal runaway.



  • As shown in the table below, Station Class arresters will have a Qrs and Wth rating. Distribution arresters will have a Qrs and Qth rating.



    Surge Arrester Distribution Table

------------------------南陽金牛電氣有限公司-------------------------------


主站蜘蛛池模板: 波多野结衣在线观看一区 | 成 人 a v免费视频 | 免费观看欧美性一级 | 三级视频网站在线观看 | 国产高清色播视频免费看 | 成人毛片18女人毛片免费视频未 | 美国一级做a一级爱视频 | 野外三级国产在线观看 | 亚洲网在线 | 国产制服 | 国产欧美一区二区另类精品 | 色 在线播放 | 国内精品视频一区二区三区 | 一级成人毛片免费观看欧美 | 欧美成人高清性色生活片 | 中文字幕在线观看一区二区三区 | 午夜小视频在线观看 | 日本xxxxx高清免费观看 | aa级国产女人毛片好多水 | 欧美久久综合网 | 人人插人人搞 | 亚洲国产日韩在线人高清不卡 | 女性一级全黄生活片免费看 | 日韩在线看片中文字幕不卡 | 性亚洲精品 | 亚洲欧美日本韩国 | 久久精品免费大片国产大片 | 毛片女人毛片一级毛片毛片 | 国产成人国产在线观看入口 | 亚洲视频黄 | 免费爱爱| 国产亚洲精品看片在线观看 | 日韩精品一 | 乱码精品一区二区三区 | 国产日韩欧美综合色视频在线 | 美女黄网| 国产免费一区二区三区在线观看 | 欧美日韩中出 | 国产日韩视频在线观看 | 福利在线看片 | 国产成人精品综合网站 |