1、注意振動盤電壓大小要求：

國家標準規定，并聯電(dian)(dian)(dian)容器工頻(pin)長時刻過(guo)電(dian)(dian)(dian)壓(ya)(ya)(ya)值zui多不超越1.1倍額(e)定電(dian)(dian)(dian)壓(ya)(ya)(ya)。關于大(da)中型(xing)異(yi)步變頻(pin)振動盤考(kao)慮到確(que)保必(bi)定的補償(chang)效果，而又會出(chu)現(xian)較(jiao)高過(guo)電(dian)(dian)(dian)壓(ya)(ya)(ya)，這(zhe)時可(ke)選(xuan)用壓(ya)(ya)(ya)敏器件(jian)限制過(guo)電(dian)(dian)(dian)壓(ya)(ya)(ya)。

2、注意振(zhen)動盤維持(chi)電壓時(shi)刻要(yao)求：

關于需主(zhu)動(dong)投(tou)(tou)切的(de)變(bian)頻振(zhen)動(dong)盤，或可逆運轉的(de)變(bian)頻振(zhen)動(dong)盤，從正(zheng)轉狀態(tai)到反轉狀態(tai)的(de)過渡時(shi)(shi)(shi)(shi)刻內，電(dian)容器的(de)端電(dian)壓(ya)必須降(jiang)到額定(ding)峰值(zhi)(zhi)(初始值(zhi)(zhi))電(dian)壓(ya)的(de)10%以(yi)下，不然由于自勵磁的(de)添(tian)加，變(bian)頻振(zhen)動(dong)盤的(de)端電(dian)壓(ya)將(jiang)升高到不能允(yun)許的(de)程度。當(dang)選用主(zhu)動(dong)投(tou)(tou)切時(shi)(shi)(shi)(shi)，投(tou)(tou)、切時(shi)(shi)(shi)(shi)刻間隔(ge)的(de)時(shi)(shi)(shi)(shi)限(xian)應大于或等(deng)于電(dian)容器放電(dian)時(shi)(shi)(shi)(shi)刻。

3、注意振動(dong)盤避(bi)免發作自(zi)勵磁和諧振：

為避免(mian)被補償變(bian)頻振(zhen)動(dong)(dong)盤發作自勵(li)磁(ci)(ci)的情況(kuang)發作，就地補償的電容器容量(liang)選(xuan)用應盡量(liang)不(bu)過補。由于(yu)變(bian)頻振(zhen)動(dong)(dong)盤堵(du)截電源后，其轉(zhuan)速不(bu)能當即降為零，電容器對變(bian)頻振(zhen)動(dong)(dong)盤繞組放電，使變(bian)頻電機得到(dao)勵(li)磁(ci)(ci)，有可能造成短時(shi)過電壓。