1、注意五金塑料件振動盤電壓大(da)小(xiao)要(yao)求：

國家標準規定(ding)(ding)，并聯(lian)電(dian)容器(qi)工頻(pin)長時刻過電(dian)壓值zui多不(bu)超越(yue)1.1倍額定(ding)(ding)電(dian)壓。關于(yu)大中型異(yi)步變頻(pin)振動(dong)盤考慮到(dao)確保(bao)必定(ding)(ding)的補償(chang)效果，而(er)又會(hui)出現較高過電(dian)壓，這時可選(xuan)用壓敏器(qi)件限制過電(dian)壓。

2、注意振動盤維持(chi)電壓時刻要求(qiu)：

關于需主(zhu)動(dong)(dong)投(tou)切(qie)的(de)(de)變(bian)頻振(zhen)動(dong)(dong)盤(pan)，或可(ke)逆運轉(zhuan)的(de)(de)變(bian)頻振(zhen)動(dong)(dong)盤(pan)，從正轉(zhuan)狀(zhuang)態(tai)到(dao)反轉(zhuan)狀(zhuang)態(tai)的(de)(de)過(guo)渡時(shi)刻(ke)(ke)內(nei)，電(dian)(dian)容器的(de)(de)端電(dian)(dian)壓(ya)必須降到(dao)額(e)定(ding)峰值(zhi)(初始值(zhi))電(dian)(dian)壓(ya)的(de)(de)10%以下，不(bu)然由于自勵磁(ci)的(de)(de)添加(jia)，變(bian)頻振(zhen)動(dong)(dong)盤(pan)的(de)(de)端電(dian)(dian)壓(ya)將升(sheng)高到(dao)不(bu)能允許的(de)(de)程(cheng)度。當選用主(zhu)動(dong)(dong)投(tou)切(qie)時(shi)，投(tou)、切(qie)時(shi)刻(ke)(ke)間隔(ge)的(de)(de)時(shi)限應大于或等于電(dian)(dian)容器放電(dian)(dian)時(shi)刻(ke)(ke)。

3、注意振(zhen)動盤避免(mian)發(fa)作自勵磁和諧振(zhen)：

為避(bi)免被補(bu)償(chang)變(bian)頻振動(dong)(dong)盤發作(zuo)自勵(li)磁的情況發作(zuo)，就地補(bu)償(chang)的電(dian)(dian)容器容量(liang)選(xuan)用應盡量(liang)不過(guo)(guo)補(bu)。由于變(bian)頻振動(dong)(dong)盤堵截電(dian)(dian)源后，其(qi)轉速不能(neng)(neng)當即降為零，電(dian)(dian)容器對變(bian)頻振動(dong)(dong)盤繞組放電(dian)(dian)，使(shi)變(bian)頻電(dian)(dian)機得到(dao)勵(li)磁，有可能(neng)(neng)造成短時(shi)過(guo)(guo)電(dian)(dian)壓。