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繼電器常見的三種故障問題

發布日期:2022-07-14 點擊率:41

  故障一:噪聲大

  通電后,銜鐵噪聲大。這可能是由于動、靜鐵芯接觸面不平整,或有油污染造成的。修理時,應取下線圈,銼平或磨平其接觸面,如有油污應進行清洗。噪聲大可能是由于短路、環斷裂引起的,修理或更換新的短路環即可。

  故障二:鐵芯故障

  鐵芯故障主要有通電后銜鐵吸不上。這可能是由于線圈斷線,動、靜鐵芯之間有異物,電源電壓過低等造成的。應區別情況修理。

  故障三:線圈損壞

  線圈故障通常有線圈絕緣損壞,受機械傷形成匝間短路或接地,由于電源電壓過低,動、靜鐵芯接觸不嚴密,使通過線圈電流過大,線圈發熱以致燒毀。其修理時,應重繞線圈。如果線圈通電后銜鐵不吸合,可能是線圈引出線連接處脫落,使線圈斷路。檢查出脫落處后焊接上即可。


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