1、注意五金塑料件振動盤電壓大小要求：

國(guo)家標(biao)準規定(ding)，并聯電(dian)(dian)容器工頻(pin)長時刻過(guo)電(dian)(dian)壓值zui多不超越1.1倍額定(ding)電(dian)(dian)壓。關于大(da)中型異步(bu)變頻(pin)振動盤考(kao)慮到確(que)保必(bi)定(ding)的補償效果，而又(you)會出現較高(gao)過(guo)電(dian)(dian)壓，這時可選用壓敏器件限制過(guo)電(dian)(dian)壓。

2、注意振動盤維(wei)持(chi)電壓(ya)時刻要求：

關于(yu)需主動(dong)(dong)投切的(de)(de)(de)變(bian)頻振動(dong)(dong)盤，或可逆運轉(zhuan)的(de)(de)(de)變(bian)頻振動(dong)(dong)盤，從(cong)正(zheng)轉(zhuan)狀(zhuang)態到反轉(zhuan)狀(zhuang)態的(de)(de)(de)過渡(du)時刻(ke)內(nei)，電(dian)(dian)容器的(de)(de)(de)端(duan)電(dian)(dian)壓(ya)必須降到額定峰值(zhi)(初始值(zhi))電(dian)(dian)壓(ya)的(de)(de)(de)10%以(yi)下，不(bu)然由于(yu)自勵磁的(de)(de)(de)添(tian)加，變(bian)頻振動(dong)(dong)盤的(de)(de)(de)端(duan)電(dian)(dian)壓(ya)將(jiang)升高到不(bu)能允(yun)許的(de)(de)(de)程度。當選用主動(dong)(dong)投切時，投、切時刻(ke)間隔的(de)(de)(de)時限應大于(yu)或等(deng)于(yu)電(dian)(dian)容器放(fang)電(dian)(dian)時刻(ke)。

3、注意(yi)振動盤(pan)避免發作自(zi)勵磁(ci)和諧振：

為(wei)避免被補(bu)償(chang)變(bian)頻(pin)(pin)振動(dong)(dong)(dong)盤(pan)(pan)發作(zuo)自勵(li)磁的(de)(de)情(qing)況發作(zuo)，就(jiu)地補(bu)償(chang)的(de)(de)電(dian)容(rong)器容(rong)量選用應盡量不過補(bu)。由(you)于變(bian)頻(pin)(pin)振動(dong)(dong)(dong)盤(pan)(pan)堵截(jie)電(dian)源后(hou)，其轉速不能當即降為(wei)零，電(dian)容(rong)器對(dui)變(bian)頻(pin)(pin)振動(dong)(dong)(dong)盤(pan)(pan)繞組放電(dian)，使(shi)變(bian)頻(pin)(pin)電(dian)機(ji)得到(dao)勵(li)磁，有可(ke)能造成短時過電(dian)壓。