1、注意五金塑料件振動盤電壓大小要(yao)求(qiu)：

國家標準規(gui)定，并聯電(dian)(dian)容器工頻長時(shi)刻過電(dian)(dian)壓(ya)值(zhi)zui多不超越1.1倍額(e)定電(dian)(dian)壓(ya)。關于大中型異(yi)步變頻振動盤考慮到確保必定的(de)補(bu)償(chang)效果，而又(you)會出現較高過電(dian)(dian)壓(ya)，這時(shi)可選用壓(ya)敏(min)器件限制過電(dian)(dian)壓(ya)。

2、注意振動盤維持電壓時(shi)刻要(yao)求：

關于需主(zhu)動(dong)(dong)(dong)投(tou)切(qie)的(de)變(bian)(bian)頻振動(dong)(dong)(dong)盤，或(huo)可逆運(yun)轉(zhuan)的(de)變(bian)(bian)頻振動(dong)(dong)(dong)盤，從正轉(zhuan)狀態到反轉(zhuan)狀態的(de)過渡時(shi)刻(ke)內，電(dian)容器的(de)端電(dian)壓(ya)必須降到額定峰(feng)值(初(chu)始值)電(dian)壓(ya)的(de)10%以下(xia)，不然由于自勵磁(ci)的(de)添加，變(bian)(bian)頻振動(dong)(dong)(dong)盤的(de)端電(dian)壓(ya)將(jiang)升(sheng)高到不能允許的(de)程(cheng)度。當選用主(zhu)動(dong)(dong)(dong)投(tou)切(qie)時(shi)，投(tou)、切(qie)時(shi)刻(ke)間(jian)隔的(de)時(shi)限應(ying)大于或(huo)等于電(dian)容器放電(dian)時(shi)刻(ke)。

3、注(zhu)意(yi)振動盤避免發作(zuo)自勵(li)磁(ci)和(he)諧振：

為避免被補(bu)償變頻(pin)振(zhen)動(dong)盤(pan)(pan)發(fa)作(zuo)自勵磁的情(qing)況發(fa)作(zuo)，就地補(bu)償的電(dian)(dian)(dian)(dian)(dian)容(rong)器容(rong)量(liang)選用應盡量(liang)不過補(bu)。由于變頻(pin)振(zhen)動(dong)盤(pan)(pan)堵截電(dian)(dian)(dian)(dian)(dian)源后(hou)，其轉速不能(neng)當即降為零(ling)，電(dian)(dian)(dian)(dian)(dian)容(rong)器對變頻(pin)振(zhen)動(dong)盤(pan)(pan)繞組放電(dian)(dian)(dian)(dian)(dian)，使變頻(pin)電(dian)(dian)(dian)(dian)(dian)機(ji)得到勵磁，有可(ke)能(neng)造成短時過電(dian)(dian)(dian)(dian)(dian)壓。