1、注意振動盤電壓大小要求：

國家(jia)標準規(gui)定，并聯(lian)電(dian)容器工頻(pin)長(chang)時(shi)(shi)刻(ke)過(guo)電(dian)壓(ya)值zui多不超(chao)越1.1倍額定電(dian)壓(ya)。關于(yu)大中型異步(bu)變頻(pin)振動盤(pan)考慮到確(que)保必定的補(bu)償(chang)效果，而又會(hui)出現較(jiao)高過(guo)電(dian)壓(ya)，這(zhe)時(shi)(shi)可選用壓(ya)敏器件限制(zhi)過(guo)電(dian)壓(ya)。

2、注(zhu)意振動(dong)盤維持電壓時刻(ke)要(yao)求：

關于需主(zhu)動(dong)投切(qie)的(de)(de)(de)變(bian)(bian)頻振(zhen)動(dong)盤(pan)(pan)，或可(ke)逆運轉的(de)(de)(de)變(bian)(bian)頻振(zhen)動(dong)盤(pan)(pan)，從正轉狀(zhuang)(zhuang)態到(dao)反轉狀(zhuang)(zhuang)態的(de)(de)(de)過渡時(shi)刻內，電(dian)(dian)容(rong)器(qi)(qi)的(de)(de)(de)端電(dian)(dian)壓(ya)必須降(jiang)到(dao)額定峰值(初始值)電(dian)(dian)壓(ya)的(de)(de)(de)10%以下，不然由于自勵(li)磁(ci)的(de)(de)(de)添加，變(bian)(bian)頻振(zhen)動(dong)盤(pan)(pan)的(de)(de)(de)端電(dian)(dian)壓(ya)將升高到(dao)不能允許(xu)的(de)(de)(de)程度。當選用主(zhu)動(dong)投切(qie)時(shi)，投、切(qie)時(shi)刻間(jian)隔的(de)(de)(de)時(shi)限應大于或等于電(dian)(dian)容(rong)器(qi)(qi)放電(dian)(dian)時(shi)刻。

3、注意振動(dong)盤避免發(fa)作自勵磁和諧(xie)振：

為(wei)(wei)避免被補償變(bian)頻振(zhen)動(dong)(dong)盤(pan)發作(zuo)自勵磁的(de)情況發作(zuo)，就(jiu)地(di)補償的(de)電(dian)(dian)容器容量(liang)選(xuan)用應盡(jin)量(liang)不過(guo)(guo)補。由(you)于變(bian)頻振(zhen)動(dong)(dong)盤(pan)堵截(jie)電(dian)(dian)源后，其轉速(su)不能(neng)當即降為(wei)(wei)零，電(dian)(dian)容器對變(bian)頻振(zhen)動(dong)(dong)盤(pan)繞組放電(dian)(dian)，使(shi)變(bian)頻電(dian)(dian)機(ji)得到(dao)勵磁，有可(ke)能(neng)造成短時過(guo)(guo)電(dian)(dian)壓。