1、注意五金塑料件振動盤電壓大小要求：

國家(jia)標準規定，并聯電(dian)容(rong)器(qi)工頻(pin)長(chang)時刻過(guo)電(dian)壓值zui多不超越1.1倍額(e)定電(dian)壓。關(guan)于大(da)中型異(yi)步(bu)變頻(pin)振動盤考慮到確保(bao)必定的補償效果，而(er)又會出(chu)現較高(gao)過(guo)電(dian)壓，這時可選用壓敏器(qi)件限(xian)制過(guo)電(dian)壓。

2、注意振動(dong)盤維持電壓(ya)時刻(ke)要求：

關于(yu)需主(zhu)動(dong)投(tou)切的(de)(de)變頻(pin)振動(dong)盤(pan)，或可逆(ni)運(yun)轉的(de)(de)變頻(pin)振動(dong)盤(pan)，從正轉狀(zhuang)態到反轉狀(zhuang)態的(de)(de)過渡時(shi)(shi)(shi)(shi)刻內(nei)，電(dian)(dian)(dian)容器的(de)(de)端電(dian)(dian)(dian)壓(ya)必須降(jiang)到額定峰(feng)值(zhi)(初始值(zhi))電(dian)(dian)(dian)壓(ya)的(de)(de)10%以下(xia)，不(bu)(bu)然由于(yu)自勵磁的(de)(de)添加，變頻(pin)振動(dong)盤(pan)的(de)(de)端電(dian)(dian)(dian)壓(ya)將升高到不(bu)(bu)能允許的(de)(de)程度。當選用主(zhu)動(dong)投(tou)切時(shi)(shi)(shi)(shi)，投(tou)、切時(shi)(shi)(shi)(shi)刻間隔的(de)(de)時(shi)(shi)(shi)(shi)限應大(da)于(yu)或等于(yu)電(dian)(dian)(dian)容器放電(dian)(dian)(dian)時(shi)(shi)(shi)(shi)刻。

3、注意振動盤(pan)避(bi)免發作自勵磁和諧振：

為避免被補償(chang)變(bian)頻振(zhen)動(dong)盤發作自(zi)勵磁的情況發作，就地補償(chang)的電(dian)(dian)(dian)(dian)容(rong)器容(rong)量選用應盡(jin)量不過補。由于變(bian)頻振(zhen)動(dong)盤堵截電(dian)(dian)(dian)(dian)源后，其轉速不能(neng)(neng)當即降(jiang)為零(ling)，電(dian)(dian)(dian)(dian)容(rong)器對變(bian)頻振(zhen)動(dong)盤繞(rao)組放電(dian)(dian)(dian)(dian)，使變(bian)頻電(dian)(dian)(dian)(dian)機得(de)到(dao)勵磁，有可能(neng)(neng)造成短時過電(dian)(dian)(dian)(dian)壓。