<progress id="fsszj"><ol id="fsszj"></ol></progress>
  • <strong id="fsszj"><blockquote id="fsszj"><em id="fsszj"></em></blockquote></strong>
  • <thead id="fsszj"></thead>

    <table id="fsszj"><div id="fsszj"></div></table>

    <em id="fsszj"></em>
    麻豆亚洲自偷拍精品日韩另,日韩国产欧美在线视频,日韩一区二区三区无码中文字幕 ,精品一区二区成人码动漫,AV无码久久久久久久久不卡网站 ,国产精品欧美日韩,久久精品国产免费观看三人同眠,久久久亚洲精品无码视频

    News

    Difference between smart power meter and smart energy meter

    Release time:2019-01-24 Times of browsing:


      1. Application structure


      The multi-function power meter is mainly used for electrical parameter measuring and monitoring, not only for trade calculation of electricity charges. Therefore, the structural requirements for the meter are lower than the power meter, and there is no anti-theft mechanism, allowing the user to set corresponding parameters to achieve different Functional Requirements.

      The electric energy meter is mainly used for trade settlement of electricity charges, and has a high structural requirement for products. Usually, a "lead seal" is set to prevent the user from opening or adjusting the internal structure.


      2. Difference in working style


      In the working mode, the energy meter adopts direct access and is powered by the voltage signal. If there is no voltage signal, the meter cannot work normally. The multi-function power meter adopts the secondary cuurrent access mode, the input current becomes the standard current signal (5A, 1A) through the transformer, and the working power supply uses a separate auxiliary power supply, which can still work and communicate without the voltage signal. .

      3. Portability difference


      In addition, the multi-function power meter is more portable. It needs to be installed after the power distribution cabinet is installed. The installation process is simpler than the electric energy meter, and the ordinary electrician can perform the installation after simple training. If there is damage to the device or needs after-sale service, it is very convenient to replace. Take the KPM53 multi-function power meter as an example, 4 clips are used to fix on the power distribution cabinet. It's easy to remove the 4 buckles when removing or replacing the meter.

    主站蜘蛛池模板: 九九视频免费在线观看| 欧美国产中文免费精品视频2| 国产亚洲中文字幕久久网| 天堂色在线视频| 国产精品黄色大片在线看| 欧美日韩中文字幕一区二区高清| 精品亚洲成A人在线观看青青| 国精品无码一区二区三区在线蜜臀| JD又大又粗又硬受不了| 无码日韩精品一区二区人妻| 欧美日韩免费精品一区二区在线观看 | 中文字幕在线亚洲三区| 国产日本欧美在线观看| 久久精品国产欧洲无码| 国产福利在线网址成人| 婷婷综合另类小说色区| 国产精品无码免费播放| 国产aⅴ无码专区亚洲av金钱| 国产福利在线网址成人| 一区二区狠狠色丁香久久婷婷| 国产真实交换配乱婬95视频| 久久精品国产精品青草色艺| 日本乱码一区二区三区不卡| 欧美猛少妇色XXXXX猛叫| 亚洲精品国产精品国在线 | 成人毛片AV免费| 亚洲av午夜福利精品一区二区| 亚洲色图 在线电影| 国产精品高清视亚洲乱码| 亚洲热视频这里只有精品| 国产中文字幕在线精品| 少妇性l交大片| 丁香五月婷婷六月| 中文字幕影片免费在线观看| 国产精品中文原创AV| 国产日产欧产精品精品推荐| 让你变得红润农村女妓女野外BBw 国产精品无码免费播放 | 久久综合老色鬼网站| 亚洲国产精品58页| 九九99久久精品在免费线18| 日韩少妇白浆无码系列|