1、注意振動盤電壓大小要求：

國家標準規(gui)定(ding)，并聯(lian)電(dian)(dian)容(rong)器工頻長(chang)時刻過電(dian)(dian)壓值zui多不超(chao)越1.1倍額定(ding)電(dian)(dian)壓。關于(yu)大中型異步變頻振動盤考慮到確保必定(ding)的補償效果(guo)，而又會(hui)出現較高過電(dian)(dian)壓，這時可選(xuan)用壓敏器件限制過電(dian)(dian)壓。

2、注意振(zhen)動盤維持電壓時(shi)刻要求：

關于(yu)(yu)需(xu)主動(dong)(dong)投(tou)(tou)切的(de)(de)變(bian)(bian)頻(pin)振動(dong)(dong)盤(pan)(pan)，或可逆運轉(zhuan)的(de)(de)變(bian)(bian)頻(pin)振動(dong)(dong)盤(pan)(pan)，從(cong)正轉(zhuan)狀態(tai)(tai)到反(fan)轉(zhuan)狀態(tai)(tai)的(de)(de)過(guo)渡時(shi)刻(ke)內，電(dian)(dian)容器的(de)(de)端電(dian)(dian)壓必須降到額定峰值(初始值)電(dian)(dian)壓的(de)(de)10%以下，不然由于(yu)(yu)自勵磁的(de)(de)添加，變(bian)(bian)頻(pin)振動(dong)(dong)盤(pan)(pan)的(de)(de)端電(dian)(dian)壓將升高到不能允許的(de)(de)程度。當選用主動(dong)(dong)投(tou)(tou)切時(shi)，投(tou)(tou)、切時(shi)刻(ke)間(jian)隔的(de)(de)時(shi)限(xian)應大于(yu)(yu)或等于(yu)(yu)電(dian)(dian)容器放電(dian)(dian)時(shi)刻(ke)。

3、注意振動盤(pan)避免發作自勵磁和(he)諧振：

為(wei)避免被補(bu)償變(bian)(bian)(bian)(bian)頻(pin)振(zhen)動盤(pan)(pan)發作自(zi)勵磁(ci)的(de)情(qing)況發作，就地補(bu)償的(de)電(dian)容器(qi)容量(liang)選(xuan)用應(ying)盡量(liang)不過補(bu)。由(you)于變(bian)(bian)(bian)(bian)頻(pin)振(zhen)動盤(pan)(pan)堵截(jie)電(dian)源后，其轉速不能當即降為(wei)零，電(dian)容器(qi)對(dui)變(bian)(bian)(bian)(bian)頻(pin)振(zhen)動盤(pan)(pan)繞組放電(dian)，使(shi)變(bian)(bian)(bian)(bian)頻(pin)電(dian)機得到(dao)勵磁(ci)，有可能造成(cheng)短時過電(dian)壓。