配電柜電力電容器故障一直是廣大用戶較為困擾的問題，那么，究其原因是怎樣的呢？接下來云南配電柜廠家小編為您介紹配(pei)電柜(ju)電力電容(rong)器故障。

工作(zuo)人員檢查配電柜

（1）過電壓過電流

若用電環境中的(de)實際電壓(ya)值遠高于電容(rong)器的(de)額定電壓(ya)，會(hui)引起(qi)電壓(ya)器過電壓(ya)運行。過壓(ya)狀(zhuang)態下的(de)電容(rong)器，內部元(yuan)件老化加快，溫升(sheng)嚴重，長期的(de)過壓(ya)運行，超出電容(rong)器極間(jian)耐壓(ya)值引發擊穿現象，導致補償(chang)柜(ju)電容(rong)器故障，引發安(an)全事故。

（2）溫度過高

電(dian)(dian)容(rong)器溫(wen)(wen)度(du)(du)受自身溫(wen)(wen)度(du)(du)和環境溫(wen)(wen)度(du)(du)的共(gong)同影響。當環境溫(wen)(wen)度(du)(du)過(guo)高(gao)時(shi)，會引(yin)起(qi)電(dian)(dian)容(rong)器溫(wen)(wen)度(du)(du)升(sheng)高(gao)，而(er)電(dian)(dian)容(rong)器本身在運(yun)行(xing)時(shi)也(ye)會散發(fa)(fa)熱量(liang)，外界溫(wen)(wen)度(du)(du)高(gao)，電(dian)(dian)容(rong)本身熱量(liang)散發(fa)(fa)受阻，電(dian)(dian)容(rong)器高(gao)溫(wen)(wen)鼓脹，安全性(xing)能降低，引(yin)起(qi)電(dian)(dian)力電(dian)(dian)容(rong)器故障。

（3）諧波含量較大

諧(xie)(xie)波(bo)是影響無(wu)功補償效果的(de)(de)(de)重要(yao)因素。當(dang)電(dian)(dian)(dian)(dian)(dian)(dian)容(rong)(rong)器(qi)運行的(de)(de)(de)環境中(zhong)存(cun)在諧(xie)(xie)波(bo)時，諧(xie)(xie)波(bo)產(chan)生(sheng)(sheng)的(de)(de)(de)諧(xie)(xie)波(bo)電(dian)(dian)(dian)(dian)(dian)(dian)流(liu)會使用電(dian)(dian)(dian)(dian)(dian)(dian)環境中(zhong)的(de)(de)(de)電(dian)(dian)(dian)(dian)(dian)(dian)壓(ya)電(dian)(dian)(dian)(dian)(dian)(dian)流(liu)產(chan)生(sheng)(sheng)產(chan)生(sheng)(sheng)非正弦畸(ji)變(bian)，而畸(ji)變(bian)的(de)(de)(de)電(dian)(dian)(dian)(dian)(dian)(dian)壓(ya)電(dian)(dian)(dian)(dian)(dian)(dian)流(liu)會引起(qi)電(dian)(dian)(dian)(dian)(dian)(dian)容(rong)(rong)器(qi)過電(dian)(dian)(dian)(dian)(dian)(dian)壓(ya)過電(dian)(dian)(dian)(dian)(dian)(dian)流(liu)，造(zao)成(cheng)電(dian)(dian)(dian)(dian)(dian)(dian)容(rong)(rong)器(qi)極(ji)間擊(ji)穿，擊(ji)穿后的(de)(de)(de)電(dian)(dian)(dian)(dian)(dian)(dian)容(rong)(rong)器(qi)，相當(dang)于(yu)短路，流(liu)過電(dian)(dian)(dian)(dian)(dian)(dian)容(rong)(rong)器(qi)的(de)(de)(de)電(dian)(dian)(dian)(dian)(dian)(dian)流(liu)呈幾倍、幾十倍的(de)(de)(de)增加(jia)，造(zao)成(cheng)電(dian)(dian)(dian)(dian)(dian)(dian)容(rong)(rong)器(qi)著火，甚至爆炸(zha)，引起(qi)補償柜電(dian)(dian)(dian)(dian)(dian)(dian)容(rong)(rong)器(qi)故(gu)障(zhang)。

（4）制作工藝不精良

若電(dian)(dian)容(rong)(rong)器制作工藝不良(liang)，電(dian)(dian)容(rong)(rong)器內(nei)壁不光滑，會使(shi)電(dian)(dian)容(rong)(rong)器內(nei)部出現(xian)(xian)游離(li)電(dian)(dian)流(liu)，這些(xie)游離(li)電(dian)(dian)流(liu)會加速電(dian)(dian)介質(zhi)的損(sun)耗(hao)，電(dian)(dian)解(jie)絕(jue)緣油，產(chan)生氣體，使(shi)電(dian)(dian)容(rong)(rong)內(nei)部升壓(ya)膨脹。若密封(feng)流(liu)程不規(gui)范，將引(yin)起電(dian)(dian)容(rong)(rong)器內(nei)部出現(xian)(xian)氧氣和(he)濕氣，影響電(dian)(dian)流(liu)導(dao)通(tong)和(he)加快元件(jian)老(lao)化，損(sun)耗(hao)增(zeng)加，容(rong)(rong)值衰減嚴重，導(dao)致電(dian)(dian)力電(dian)(dian)容(rong)(rong)器故障。

上述云南配電柜廠家小編為您從(cong)四方面分析了配電(dian)柜電(dian)力電(dian)容器故(gu)障(zhang)的原(yuan)因(yin)，旨在(zai)幫(bang)助(zhu)用戶提前找出自身(shen)補(bu)償系統的缺陷并及時做出整改，確(que)保無功(gong)補(bu)償效果。