1、注意振動盤電壓大小要求：

國(guo)家標準規定(ding)(ding)，并聯電(dian)(dian)容(rong)器工頻長時刻過電(dian)(dian)壓(ya)值(zhi)zui多(duo)不超越1.1倍額定(ding)(ding)電(dian)(dian)壓(ya)。關(guan)于大(da)中(zhong)型異(yi)步變(bian)頻振動(dong)盤(pan)考(kao)慮到確保必定(ding)(ding)的補(bu)償(chang)效果，而又會出現較高過電(dian)(dian)壓(ya)，這時可選(xuan)用壓(ya)敏器件限制過電(dian)(dian)壓(ya)。

2、注意振(zhen)動盤(pan)維持電壓時刻要求：

關于(yu)需主動(dong)投(tou)(tou)切(qie)的(de)變頻振動(dong)盤，或可逆運轉的(de)變頻振動(dong)盤，從正轉狀態到反轉狀態的(de)過渡(du)時(shi)刻(ke)內，電(dian)(dian)容器的(de)端(duan)電(dian)(dian)壓(ya)必須降到額定峰值(zhi)(初始(shi)值(zhi))電(dian)(dian)壓(ya)的(de)10%以下，不然(ran)由(you)于(yu)自勵磁的(de)添(tian)加，變頻振動(dong)盤的(de)端(duan)電(dian)(dian)壓(ya)將(jiang)升高到不能允許的(de)程(cheng)度。當選用主動(dong)投(tou)(tou)切(qie)時(shi)，投(tou)(tou)、切(qie)時(shi)刻(ke)間隔的(de)時(shi)限應大于(yu)或等于(yu)電(dian)(dian)容器放電(dian)(dian)時(shi)刻(ke)。

3、注意(yi)振動盤避免發作自勵(li)磁和諧振：

為避免被補(bu)償變(bian)頻振(zhen)動(dong)盤(pan)(pan)發(fa)作自勵磁的情況發(fa)作，就地補(bu)償的電(dian)(dian)(dian)容器容量選(xuan)用應(ying)盡量不過(guo)補(bu)。由于變(bian)頻振(zhen)動(dong)盤(pan)(pan)堵截電(dian)(dian)(dian)源后，其轉(zhuan)速不能當即降為零，電(dian)(dian)(dian)容器對變(bian)頻振(zhen)動(dong)盤(pan)(pan)繞(rao)組(zu)放電(dian)(dian)(dian)，使變(bian)頻電(dian)(dian)(dian)機得(de)到勵磁，有(you)可能造成短(duan)時過(guo)電(dian)(dian)(dian)壓。