低壓(ya)無(wu)功(gong)(gong)自動(dong)補償裝置(zhi)通(tong)過安裝在控制柜內的(de)自動(dong)無(wu)功(gong)(gong)補償控制器(qi)的(de)動(dong)作，自動(dong)接通(tong)和斷開控制柜內的(de)并(bing)聯電(dian)(dian)容(rong)器(qi)組，從而(er)將(jiang)電(dian)(dian)網(wang)(wang)無(wu)功(gong)(gong)功(gong)(gong)率消(xiao)耗保持在低狀態，從而(er)提高電(dian)(dian)網(wang)(wang)電(dian)(dian)壓(ya)質量，降低輸電(dian)(dian)系統(tong)和變壓(ya)器(qi)的(de)損(sun)耗。同時(shi)，也可(ke)以通(tong)過轉換開關手(shou)動(dong)控制并(bing)聯電(dian)(dian)容(rong)器(qi)組的(de)切換。

安裝無功補償(chang)柜的(de)成(cheng)因、性質(zhi)及對其進行的(de)補償(chang)

實質上，它(ta)就是(shi)一種(zhong)不(bu)帶任何機械電(dian)力(li)負(fu)載的(de)(de)同步(bu)(bu)運(yun)行的(de)(de)電(dian)動器(qi)材。因同步(bu)(bu)調的(de)(de)相機是(shi)屬于旋轉(zhuan)形式的(de)(de)設備，損耗(hao)電(dian)力(li)、噪聲影(ying)響都是(shi)不(bu)可低估的(de)(de)，而且(qie)對它(ta)們進行運(yun)行、維(wei)護(hu)的(de)(de)程序相對來說是(shi)比(bi)較復雜的(de)(de)，伴隨著(zhu)并(bing)聯(lian)電(dian)容器(qi)的(de)(de)高效(xiao)率運(yun)作，同步(bu)(bu)調的(de)(de)相機就不(bu)再占著(zhu)首要的(de)(de)位置(zhi)。

并(bing)聯(lian)(lian)電(dian)(dian)(dian)容器的 主要缺點是(shi)其對(dui)諧波的敏感(gan)性。當電(dian)(dian)(dian)網(wang)中(zhong)含有諧波時，電(dian)(dian)(dian)容器的電(dian)(dian)(dian)流會(hui)急劇增大，還會(hui)與電(dian)(dian)(dian)網(wang)中(zhong)的感(gan)性元件(jian)諧振使諧波放(fang)大，另(ling)外，并(bing)聯(lian)(lian)電(dian)(dian)(dian)容器屬于恒阻抗元件(jian)，在電(dian)(dian)(dian)網(wang)電(dian)(dian)(dian)壓下(xia)降時其輸出的無功(gong)電(dian)(dian)(dian)出下(xia)降，因此不利于電(dian)(dian)(dian)網(wang)的無功(gong)安(an)全。