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goldencat
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樓主  發(fā)表于: 2008-07-04 10:10

用MF-47表的R×1K檔分別測量變頻器的輸入端子R、S、T，應有一個(gè)明顯的充電過(guò)程。過(guò)幾分鐘后再分別測量輸出端子U、V、W，同樣有一個(gè)充放電過(guò)程。充電結束后表針應指在幾百KΩ以上，阻值越在越好。然后可以放心通電試驗檢查其他功能和性能。但此法只適合10KW以下的變頻器，對于10KW以下的還有待驗證。
此法可以快速安全地甄別出變頻器內部模塊及主電路是否有短路或斷路現象。
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    nbwrk
    樹(shù)不要皮必死無(wú)疑！人不要臉天下無(wú)敵！
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    1樓  發(fā)表于: 2008-09-24 16:10
    我想越在越好應該是越大越好，因為5筆里  在為“D　”而大為“ＤＤ　”

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