<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: 开心激情五月天熟女av| 国产水蜜桃无码视频| 精品无码一区二区三区爱欲| 国产一区二区三区我不卡| 精品久久久久久无码人妻热| 国内自拍视频在线一区| 亚洲精品456| 97在线中文字幕免费公开视频 | 精品国产v无码大片在线看| 无码午夜福利视频一区 | 精品国产线拍大陆久久尤物| 亚洲中文字幕精品一区二区三区 | 1024国产精品视频一区| 掩去也俺来也久久丁香| 青青草国产在现线免费观看 | 久久免费精品视频30| 国产一区精品综亚洲av| 天天摸夜夜添夜夜无码| 大地资源高清免费观看| 豆国产96在线 | 亚洲| 亚洲欧美熟妇综合久久| 亚洲一级在线观看| 69天堂人成无码免费视频| a级毛片免费观看在线播放| 国产精品自在拍首页视频8| 国产亚洲真人做受在线观看| 亚洲中文久久精品无码| 久久国产精品拍拍拍| 国产精品一区久久人人爽| 欧美特黄一级a片日韩一区二区三区| 日本亚洲洲精品码无无专区| 勉费看国产妓女视频| 久青草视频在线免费观看| 国产精品自在自线亚洲| 亚洲乱妇老熟女爽到高潮的片 | 嫩草研究院久久久精品| 蜜臀av黑人亚洲精品| 国产suv精品一区二区69| 香蕉APP官方网站| 国产中文无码av每日更新在线观看| 内射口爆少妇麻豆|