1、注意振動盤電壓大小要求：

國家標準規定，并聯電(dian)(dian)(dian)(dian)(dian)容器(qi)工(gong)頻長時刻過(guo)電(dian)(dian)(dian)(dian)(dian)壓(ya)值zui多不(bu)超越1.1倍額定電(dian)(dian)(dian)(dian)(dian)壓(ya)。關于(yu)大中型異步變頻振(zhen)動盤考慮到確保(bao)必定的補償效果，而又會(hui)出現較高過(guo)電(dian)(dian)(dian)(dian)(dian)壓(ya)，這(zhe)時可選(xuan)用壓(ya)敏器(qi)件(jian)限制過(guo)電(dian)(dian)(dian)(dian)(dian)壓(ya)。

2、注意振動盤維(wei)持電壓(ya)時刻(ke)要求：

關于(yu)需主動投切(qie)(qie)的變(bian)頻振動盤，或可逆運(yun)轉的變(bian)頻振動盤，從正轉狀態到(dao)反轉狀態的過渡時刻內，電容器的端(duan)電壓必須降到(dao)額(e)定(ding)峰值(初始值)電壓的10%以下(xia)，不然由于(yu)自勵磁的添(tian)加，變(bian)頻振動盤的端(duan)電壓將升高到(dao)不能允許(xu)的程度。當選用(yong)主動投切(qie)(qie)時，投、切(qie)(qie)時刻間(jian)隔(ge)的時限(xian)應大于(yu)或等(deng)于(yu)電容器放電時刻。

3、注意振動(dong)盤避免發(fa)作自(zi)勵磁和諧振：

為避免被補(bu)償(chang)變(bian)頻(pin)(pin)振動(dong)盤(pan)發作自勵磁的(de)情況發作，就地補(bu)償(chang)的(de)電(dian)容器容量(liang)選用應(ying)盡量(liang)不(bu)過補(bu)。由于(yu)變(bian)頻(pin)(pin)振動(dong)盤(pan)堵截電(dian)源(yuan)后，其(qi)轉速不(bu)能當即降為零(ling)，電(dian)容器對變(bian)頻(pin)(pin)振動(dong)盤(pan)繞(rao)組放電(dian)，使變(bian)頻(pin)(pin)電(dian)機得(de)到勵磁，有可能造成短時(shi)過電(dian)壓(ya)。