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電流表

鉗形電流表判斷低壓線路漏電的方法

發布日期：2022-10-09 點擊率：74

　　使用鉗形電流表判斷低壓線路哪一相漏電的方法如下：

　　在配電變壓器處，將控制低壓線路的交流出線側的中性線斷開。然后將已取下的熔斷器芯裝在其中的一相上后，用鉗形電流表測量該相，測得的電流就是該相的漏電電流。按同樣的方法依次測量其余漏電相的漏電電流。

　　為了防止線路上存在相線接地（例如：有人采用一線一地的方法竊電等）而發生大電流損壞儀表，在進行上述檢測時，先應將鉗形電流表擋位放在大電流擋位上；如果檢測值很小，再將鉗形電流表擋位轉換到毫安擋進行檢測。在查找漏電故障時，控制低壓線路的需要短時間強行送電。

標簽: 鉗形電流表

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