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威勝DSSD331三相三線電子式多功能電能表精確度等級?

2016-08-29

  威勝DSSD331系列有很多,如威勝DSSD331-mb3,威勝DSSD331-mc3,長沙威勝DSSD331-MB4,長沙威勝DSSD331-9A,等多種表,一般這些表標牌上有一個小圈圈,里面是一個阿拉伯數字,數字代表精度,通常有功是 0.2S ,0.5S或者1,無功是2。

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