1、注意五金塑料件振動盤電壓大小要求：

國家標準規定，并聯電(dian)(dian)容(rong)器工頻長時刻過(guo)電(dian)(dian)壓值(zhi)zui多(duo)不超(chao)越1.1倍額定電(dian)(dian)壓。關于大中型異步(bu)變頻振動盤考慮到確保(bao)必定的(de)補償效果(guo)，而又會(hui)出現較高過(guo)電(dian)(dian)壓，這時可選用(yong)壓敏器件限制過(guo)電(dian)(dian)壓。

2、注意振動盤維(wei)持電(dian)壓時刻(ke)要求(qiu)：

關于(yu)(yu)(yu)需主動(dong)投切的(de)變(bian)頻振動(dong)盤，或可逆運轉的(de)變(bian)頻振動(dong)盤，從正轉狀態(tai)到(dao)反轉狀態(tai)的(de)過渡時(shi)(shi)刻內，電(dian)容(rong)器的(de)端電(dian)壓必須降到(dao)額定峰值(zhi)(初始值(zhi))電(dian)壓的(de)10%以下，不然(ran)由于(yu)(yu)(yu)自勵磁的(de)添(tian)加，變(bian)頻振動(dong)盤的(de)端電(dian)壓將升高到(dao)不能允許的(de)程度。當(dang)選用主動(dong)投切時(shi)(shi)，投、切時(shi)(shi)刻間隔的(de)時(shi)(shi)限應(ying)大于(yu)(yu)(yu)或等于(yu)(yu)(yu)電(dian)容(rong)器放(fang)電(dian)時(shi)(shi)刻。

3、注意振動盤避免發作自勵磁和諧(xie)振：

為避免(mian)被補(bu)償變(bian)頻(pin)振動(dong)盤發作(zuo)自勵(li)(li)磁(ci)的情況發作(zuo)，就地補(bu)償的電(dian)(dian)(dian)容器容量選用應盡量不過補(bu)。由于變(bian)頻(pin)振動(dong)盤堵截電(dian)(dian)(dian)源后，其轉速不能(neng)當即降為零，電(dian)(dian)(dian)容器對變(bian)頻(pin)振動(dong)盤繞(rao)組放電(dian)(dian)(dian)，使變(bian)頻(pin)電(dian)(dian)(dian)機得到(dao)勵(li)(li)磁(ci)，有(you)可(ke)能(neng)造(zao)成短(duan)時(shi)過電(dian)(dian)(dian)壓。