江西電力補償電容器關鍵的一個階段便是投切，投切方法的挑選十分關鍵，投切方法沒有挑選恰當，形象化的便會造成過補或欠補的難題，高壓電力補償電容器投切(qie)方(fang)法挑選沒錯，可(ke)是廷時設定(ding)太高，仍(reng)然將(jiang)會(hui)造(zao)成過補和欠補的難(nan)題，廷時設定(ding)太低，將(jiang)會(hui)會(hui)經常投切(qie)造(zao)成電(dian)力網(wang)起伏，毀壞投切(qie)電(dian)源開關，減少電(dian)力電(dian)容器使(shi)用期。

高壓電力補償電容器決不是無用功率，它的用處很大。電動機需要建立和維持旋轉磁場，使轉子轉動，從而帶動機械運動，電動機的轉子磁場就是靠從電源取得無功功率建立的。電力補償電容器批發變(bian)壓(ya)器(qi)(qi)也(ye)(ye)同樣需要無(wu)功功率，才能(neng)使變(bian)壓(ya)器(qi)(qi)的一次(ci)線(xian)圈產生(sheng)磁(ci)場，在二(er)次(ci)線(xian)圈感應出電壓(ya)。因此，沒有無(wu)功功率，電動(dong)機就不會轉動(dong)，變(bian)壓(ya)器(qi)(qi)也(ye)(ye)不能(neng)變(bian)壓(ya)，交(jiao)流接觸(chu)器(qi)(qi)不會吸(xi)合。

高壓電力補償電容器中(zhong)的(de)投(tou)切開(kai)(kai)(kai)(kai)關(guan)(guan)(guan)具有特(te)殊的(de)電(dian)(dian)(dian)(dian)(dian)磁過(guo)(guo)零(ling)開(kai)(kai)(kai)(kai)關(guan)(guan)(guan)技術。 過(guo)(guo)零(ling)開(kai)(kai)(kai)(kai)關(guan)(guan)(guan)的(de)偏移小于(yu)2.5。 開(kai)(kai)(kai)(kai)關(guan)(guan)(guan)浪涌電(dian)(dian)(dian)(dian)(dian)流小于(yu)額(e)定(ding)電(dian)(dian)(dian)(dian)(dian)流的(de)2.5倍。 智能控(kong)制單元(yuan)通(tong)過(guo)(guo)在斷(duan)開(kai)(kai)(kai)(kai)開(kai)(kai)(kai)(kai)關(guan)(guan)(guan)的(de)動態(tai)(tai)(tai)和(he)(he)靜態(tai)(tai)(tai)觸點(dian)時(shi)檢測兩端(duan)電(dian)(dian)(dian)(dian)(dian)壓來(lai)控(kong)制電(dian)(dian)(dian)(dian)(dian)壓的(de)零(ling)交叉(cha)點(dian)的(de)閉合(he)：通(tong)過(guo)(guo)在投(tou)切開(kai)(kai)(kai)(kai)關(guan)(guan)(guan)的(de)動態(tai)(tai)(tai)和(he)(he)靜態(tai)(tai)(tai)觸點(dian)時(shi)檢測電(dian)(dian)(dian)(dian)(dian)流來(lai)控(kong)制電(dian)(dian)(dian)(dian)(dian)壓閉合(he)時(shi)，控(kong)制其(qi)在電(dian)(dian)(dian)(dian)(dian)流的(de)過(guo)(guo)零(ling)點(dian)處斷(duan)開(kai)(kai)(kai)(kai)以實現“過(guo)(guo)零(ling)開(kai)(kai)(kai)(kai)關(guan)(guan)(guan)”功(gong)能，使低壓功(gong)率(lv)(lv)電(dian)(dian)(dian)(dian)(dian)容器投(tou)入運行時(shi)產生的(de)浪涌電(dian)(dian)(dian)(dian)(dian)流很(hen)小，并且(qie)沒(mei)有返回低壓功(gong)率(lv)(lv)電(dian)(dian)(dian)(dian)(dian)容器時(shi)會產生電(dian)(dian)(dian)(dian)(dian)弧，從而(er)延(yan)長了低壓功(gong)率(lv)(lv)電(dian)(dian)(dian)(dian)(dian)容器和(he)(he)開(kai)(kai)(kai)(kai)關(guan)(guan)(guan)設(she)(she)備本身(shen)的(de)壽命(ming)，還減少了開(kai)(kai)(kai)(kai)關(guan)(guan)(guan)設(she)(she)備接(jie)通(tong)和(he)(he)關(guan)(guan)(guan)閉時(shi)對電(dian)(dian)(dian)(dian)(dian)網的(de)影響：提高了電(dian)(dian)(dian)(dian)(dian)網的(de)電(dian)(dian)(dian)(dian)(dian)能質量(liang)。

電力補償電容器全稱無功功率補償，是一種在電力供電系統中起提高電網的功率因數的作用，降低供電變壓器及輸送線路的損耗，提高供電效率，改善供電環境的技術。所以江西電力補償電容器在電(dian)力供電(dian)系統(tong)中(zhong)處在一個不可(ke)缺(que)少(shao)的(de)非常重要(yao)的(de)位置(zhi)。合理的(de)選(xuan)(xuan)擇無功(gong)補(bu)償裝置(zhi)，可(ke)以做到(dao)最大限度的(de)減(jian)少(shao)電(dian)網(wang)的(de)損耗，使(shi)電(dian)網(wang)質量提高。反之，如選(xuan)(xuan)擇或使(shi)用不當，可(ke)能(neng)造(zao)成供電(dian)系統(tong)，電(dian)壓波動(dong)，諧波增大等諸多(duo)因(yin)素(su)。