1、注意五金塑料件振動盤電壓大小要(yao)求：

國家標準(zhun)規定(ding)，并聯電(dian)容(rong)器(qi)工頻長時(shi)刻(ke)過(guo)電(dian)壓值zui多不(bu)超(chao)越(yue)1.1倍額定(ding)電(dian)壓。關(guan)于大中型異步變頻振動盤考慮到確保必定(ding)的補償效果，而(er)又會出(chu)現(xian)較高過(guo)電(dian)壓，這時(shi)可選用(yong)壓敏器(qi)件限制過(guo)電(dian)壓。

2、注意振動(dong)盤維持(chi)電(dian)壓時刻要求：

關于需主(zhu)(zhu)動(dong)投切(qie)(qie)的變頻(pin)振(zhen)動(dong)盤(pan)(pan)，或(huo)可逆(ni)運轉(zhuan)的變頻(pin)振(zhen)動(dong)盤(pan)(pan)，從正轉(zhuan)狀(zhuang)(zhuang)態到(dao)反轉(zhuan)狀(zhuang)(zhuang)態的過渡時(shi)刻(ke)內，電容(rong)器的端電壓必(bi)須(xu)降到(dao)額定峰值(初始值)電壓的10%以下，不然由(you)于自勵(li)磁(ci)的添加，變頻(pin)振(zhen)動(dong)盤(pan)(pan)的端電壓將(jiang)升高到(dao)不能允許的程度(du)。當選用(yong)主(zhu)(zhu)動(dong)投切(qie)(qie)時(shi)，投、切(qie)(qie)時(shi)刻(ke)間隔的時(shi)限(xian)應大于或(huo)等于電容(rong)器放(fang)電時(shi)刻(ke)。

3、注意振動盤(pan)避免發作自(zi)勵磁和諧振：

為避(bi)免(mian)被補(bu)償(chang)變(bian)(bian)頻(pin)振(zhen)動(dong)盤發作自(zi)勵磁(ci)的情況發作，就地補(bu)償(chang)的電(dian)(dian)容(rong)器容(rong)量選用應盡量不過(guo)補(bu)。由于變(bian)(bian)頻(pin)振(zhen)動(dong)盤堵截(jie)電(dian)(dian)源后，其轉速不能當(dang)即降(jiang)為零(ling)，電(dian)(dian)容(rong)器對變(bian)(bian)頻(pin)振(zhen)動(dong)盤繞組(zu)放(fang)電(dian)(dian)，使變(bian)(bian)頻(pin)電(dian)(dian)機得到勵磁(ci)，有可(ke)能造成短時過(guo)電(dian)(dian)壓。