1、注意振動盤電壓大小要求：

國家標準規定(ding)，并聯電(dian)容器(qi)工頻長時刻(ke)過電(dian)壓值zui多不超越1.1倍額定(ding)電(dian)壓。關于大中型異步變頻振動(dong)盤考慮到確(que)保(bao)必定(ding)的(de)補償效果(guo)，而又會出(chu)現較高過電(dian)壓，這時可(ke)選用壓敏器(qi)件限制過電(dian)壓。

2、注意振動盤維持(chi)電壓時刻(ke)要求(qiu)：

關于(yu)需(xu)主動(dong)(dong)(dong)投(tou)切(qie)的(de)變(bian)頻(pin)振(zhen)動(dong)(dong)(dong)盤，或(huo)可逆運轉(zhuan)(zhuan)的(de)變(bian)頻(pin)振(zhen)動(dong)(dong)(dong)盤，從正轉(zhuan)(zhuan)狀態(tai)到反轉(zhuan)(zhuan)狀態(tai)的(de)過(guo)渡時刻(ke)內，電(dian)(dian)(dian)容(rong)器(qi)的(de)端電(dian)(dian)(dian)壓(ya)必須(xu)降(jiang)到額(e)定峰值(zhi)(初始(shi)值(zhi))電(dian)(dian)(dian)壓(ya)的(de)10%以下，不然由于(yu)自(zi)勵磁(ci)的(de)添加，變(bian)頻(pin)振(zhen)動(dong)(dong)(dong)盤的(de)端電(dian)(dian)(dian)壓(ya)將升(sheng)高到不能允許的(de)程(cheng)度(du)。當選用主動(dong)(dong)(dong)投(tou)切(qie)時，投(tou)、切(qie)時刻(ke)間隔的(de)時限應大(da)于(yu)或(huo)等于(yu)電(dian)(dian)(dian)容(rong)器(qi)放電(dian)(dian)(dian)時刻(ke)。

3、注意振動(dong)盤避免發作(zuo)自(zi)勵磁和諧振：

為避免被(bei)補(bu)償(chang)變(bian)頻振(zhen)動(dong)盤(pan)發作自勵磁的情(qing)況發作，就地補(bu)償(chang)的電(dian)容(rong)器容(rong)量選用應盡(jin)量不過補(bu)。由(you)于變(bian)頻振(zhen)動(dong)盤(pan)堵截電(dian)源(yuan)后(hou)，其轉速不能當即降為零，電(dian)容(rong)器對變(bian)頻振(zhen)動(dong)盤(pan)繞組放電(dian)，使變(bian)頻電(dian)機得(de)到勵磁，有可能造(zao)成短時過電(dian)壓。