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怎么挑選電能表的巨細

發布日期：2022-10-09 點擊率：61


電能表（俗稱電度表）是一種計量某一段時間內經過電能的累計值外表，是電能計量不行短少的電氣外表，因此挑選適宜的電能表就顯得尤為首要。

(1)用戶應依據供電辦法和用電性質來挑選單相、三相或復費率電能表，多功用電能表。

(2)應依據用戶的電容量來斷定選用表的標定電流。通常依照單相每千瓦5A、三相每千瓦2.5A核算。

(3)依據用戶狀況、用戶種類來斷定電能表的精確等級。

(4)額外電壓要與實習運用電壓相符。如標明為：3～380V／220V，則標明相數是三相，額外線電壓為380V，相電壓為220V。


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