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天語(yǔ)愿
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樓主  發(fā)表于: 2016-08-18 13:20
大家都知道，在一般的電氣控制柜中都有噪聲濾波器；近期發(fā)現工作崗位中的配電柜中，有刺耳異響，求助是供電線(xiàn)的問(wèn)題，還是阻抗，電容的原因
天語(yǔ)愿
級別: 家園�？�
精華主題: 0
發(fā)帖數量: 58 個(gè)
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下載積分: 744 分
在線(xiàn)時(shí)間: 56(小時(shí))
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1樓  發(fā)表于: 2016-08-19 17:14
我比較認同線(xiàn)圈問(wèn)題的說(shuō)法，但是我提到的控制柜負載很大，當晃動(dòng)一供電線(xiàn)接線(xiàn)端子處時(shí)，異響就會(huì )變小甚至消失，端子處的螺絲并沒(méi)有松動(dòng)現象，大家再討論一下是否運作年限過(guò)長(cháng)，供電線(xiàn)纜有所損傷造成的呢？

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