1、注意五金塑料件振動盤電壓大小要求：

國家標準規(gui)定，并聯(lian)電(dian)(dian)(dian)容(rong)器工(gong)頻長時(shi)刻過電(dian)(dian)(dian)壓(ya)(ya)值zui多不超越1.1倍額定電(dian)(dian)(dian)壓(ya)(ya)。關(guan)于大中型異步變頻振動盤(pan)考慮到確保必定的(de)補(bu)償效(xiao)果，而又會出現較高過電(dian)(dian)(dian)壓(ya)(ya)，這時(shi)可選用壓(ya)(ya)敏器件限制(zhi)過電(dian)(dian)(dian)壓(ya)(ya)。

2、注(zhu)意振動(dong)盤維持電壓(ya)時刻(ke)要求：

關于需主動(dong)投切的變頻(pin)(pin)振動(dong)盤，或(huo)可逆運轉(zhuan)的變頻(pin)(pin)振動(dong)盤，從正轉(zhuan)狀態到反轉(zhuan)狀態的過渡(du)時(shi)刻內，電(dian)(dian)(dian)容(rong)器的端電(dian)(dian)(dian)壓(ya)必須降到額定峰值(zhi)(zhi)(初始值(zhi)(zhi))電(dian)(dian)(dian)壓(ya)的10%以下，不然由于自勵磁的添(tian)加，變頻(pin)(pin)振動(dong)盤的端電(dian)(dian)(dian)壓(ya)將(jiang)升高到不能允許的程(cheng)度。當(dang)選用主動(dong)投切時(shi)，投、切時(shi)刻間(jian)隔的時(shi)限應大于或(huo)等(deng)于電(dian)(dian)(dian)容(rong)器放電(dian)(dian)(dian)時(shi)刻。

3、注(zhu)意振動盤(pan)避免(mian)發作(zuo)自勵磁和諧振：

為避免(mian)被補(bu)(bu)償變頻振(zhen)動(dong)盤發作自勵磁(ci)的(de)情況發作，就地(di)補(bu)(bu)償的(de)電容器容量選用應盡量不(bu)過補(bu)(bu)。由于變頻振(zhen)動(dong)盤堵截電源后，其轉速(su)不(bu)能當即降為零，電容器對變頻振(zhen)動(dong)盤繞組放電，使變頻電機得到勵磁(ci)，有可能造成(cheng)短(duan)時過電壓(ya)。