電(dian)(dian)網(wang)無功(gong)補(bu)償(chang)(chang)(chang)(chang)(chang)是一(yi)項建設性的(de)(de)(de)技術(shu)措(cuo)施，對電(dian)(dian)網(wang)安全、優質(zhi)、經(jing)濟運行有重(zhong)要(yao)作(zuo)用(yong)。電(dian)(dian)網(wang)和(he)負載(zai)的(de)(de)(de)特(te)點(dian)選(xuan)(xuan)(xuan)擇合(he)理(li)的(de)(de)(de)補(bu)償(chang)(chang)(chang)(chang)(chang)方式是補(bu)償(chang)(chang)(chang)(chang)(chang)的(de)(de)(de)關(guan)鍵。針(zhen)對目前電(dian)(dian)網(wang)諧(xie)波污染嚴重(zhong)的(de)(de)(de)現狀，在(zai)做無功(gong)補(bu)償(chang)(chang)(chang)(chang)(chang)時一(yi)定要(yao)選(xuan)(xuan)(xuan)擇合(he)適的(de)(de)(de)裝置，各(ge)(ge)種(zhong)投切元件(jian)(jian)各(ge)(ge)有優缺點(dian)。利用(yong)他(ta)們(men)不同的(de)(de)(de)特(te)性可(ke)以在(zai)不同的(de)(de)(de)行業(ye)中(zhong)各(ge)(ge)占有一(yi)席(xi)之地。因此對于如何選(xuan)(xuan)(xuan)擇好投切器件(jian)(jian)，需要(yao)對負載(zai)有個清楚的(de)(de)(de)了解。選(xuan)(xuan)(xuan)擇 合(he)適的(de)(de)(de)投切器件(jian)(jian)來補(bu)償(chang)(chang)(chang)(chang)(chang)不同的(de)(de)(de)負荷(he)，保(bao)證電(dian)(dian)容(rong)電(dian)(dian)抗的(de)(de)(de)壽命和(he)無功(gong)補(bu)償(chang)(chang)(chang)(chang)(chang)裝置的(de)(de)(de)補(bu)償(chang)(chang)(chang)(chang)(chang)效果(guo)，為(wei)客戶創(chuang)造價值。

電力中低壓補償模組(zu)的諧(xie)波放大問(wen)題解決辦法

更重要(yao)的(de)(de)(de)是，由于這(zhe)(zhe)種應(ying)用(yong)(yong)的(de)(de)(de)電(dian)(dian)(dian)(dian)容(rong)器(qi)(qi)額(e)定電(dian)(dian)(dian)(dian)壓要(yao)遠大于配電(dian)(dian)(dian)(dian)系(xi)統(tong)電(dian)(dian)(dian)(dian)壓(如(ru)14%電(dian)(dian)(dian)(dian)抗率應(ying)用(yong)(yong)時，電(dian)(dian)(dian)(dian)容(rong)器(qi)(qi)額(e)定電(dian)(dian)(dian)(dian)壓為(wei)525V，遠大于400V系(xi)統(tong)電(dian)(dian)(dian)(dian)壓)，電(dian)(dian)(dian)(dian)容(rong)器(qi)(qi)在(zai)400V系(xi)統(tong)中(zhong)實際(ji)能(neng)夠承(cheng)載的(de)(de)(de)電(dian)(dian)(dian)(dian)流(liu)(包括基(ji)波和諧(xie)波電(dian)(dian)(dian)(dian)流(liu))要(yao)大于其在(zai)額(e)定電(dian)(dian)(dian)(dian)壓下(如(ru)525V)的(de)(de)(de)額(e)定電(dian)(dian)(dian)(dian)流(liu)。因此(ci)，在(zai)這(zhe)(zhe)種無(wu)功補償應(ying)用(yong)(yong)中(zhong)，決定回路(lu)過(guo)載能(neng)力(li)的(de)(de)(de)是串(chuan)聯電(dian)(dian)(dian)(dian)抗器(qi)(qi)的(de)(de)(de)參數，即(ji)電(dian)(dian)(dian)(dian)抗器(qi)(qi)的(de)(de)(de) 大過(guo)電(dian)(dian)(dian)(dian)流(liu)能(neng)力(li)。

相(xiang)位(wei)差賠(pei)(pei)償(chang)是以進相(xiang)的無(wu)功(gong)補償(chang)機器(qi)設備(bei)（如串聯電(dian)力電(dian)容器(qi)）原(yuan)則提供(gong)客戶(hu)或(huo)配電(dian)網所必須(xu)的滯相(xiang)無(wu)功(gong)負荷，降低在配電(dian)網中流(liu)動性(xing)的無(wu)功(gong)負荷，減少網損，改進電(dian)壓品質。我(wo)國(guo)對大電(dian)力工程客戶(hu)規定安(an)裝無(wu)功(gong)補償(chang)設備(bei)，賠(pei)(pei)償(chang)后的功(gong)率因素不可小于0.9。