瓷套管及外殼滲漏油

並聯式的高壓電容器常常會出現外殼滲油的情況
，由於高壓電容器是全密封的電氣設備，由於製造工藝、運輸等原因，密封不良出現滲漏，導致套管內部受潮，絕緣電阻降低。隨著電容器運行電壓、溫度等變化，內部壓力增加，滲漏油更為嚴重，使油麵下降，元件上部容易受潮擊穿而損壞。

瓷絕緣表麵放電閃絡

高gao壓ya電dian容rong器qi組zu或huo並bing聯lian式shi高gao壓ya電dian容rong器qi的de瓷ci絕jue緣yuan層ceng，在zai夏xia季ji有you時shi候hou會hui出chu現xian表biao麵mian放fang電dian閃shan路lu的de情qing況kuang。造zao成cheng這zhe種zhong問wen題ti的de原yuan因yin在zai於yu出chu現xian電dian容rong器qi在zai運yun行xing中zhong缺que乏fa定ding期qi清qing掃sao和he維wei護hu
，其qi瓷ci絕jue緣yuan表biao麵mian因yin汙wu穢hui嚴yan重zhong
，在zai電dian網wang出chu現xian內nei、外過電壓和係統諧振的情況下導致絕緣擊穿並局部放電，造成瓷套管閃絡破損，響聲異常。

外殼鼓肚

在日常工作中，並聯式的電容器或電容器組有時會發生外殼鼓起、脹大等情況，對線路的正常運行來說是一種潛在的隱患。當電容器內部元件發生故障擊穿時
，介質中將通過很大的故障電流，電流產 shengdedianhuhegaowenshijinzijiyoulierfenjiechanshengdaliangqiti，shidedianrongqidemifengwaikeneibuyalizengda，daozhidianrongqidewaikepengzhanggudu
，zheshiyunxingzhongdianrongqiguzhangdezhengzhao，gongchengshiyingjishijinxingxiuzhengchuli，bimianguzhangdemanyankuoda。

熔斷器熔斷

rongduanqishiweichidianrongqizhengchangyunxingdezhongyaobaozhang
，danshizaichunjihexiajidegongzuoshijiannei
，changchanghuichuxianrongduanqirongduandeqingkuang。zaochengzhezhongqingkuangdeyuanyinyousanzhong，fenbieshidianrongqineibuyuanjianfashengguzhangjichuan、熔rong斷duan器qi安an裝zhuang接jie觸chu不bu良liang發fa熱re以yi及ji熔rong斷duan器qi的de額e定ding電dian流liu選xuan擇ze不bu當dang。出chu現xian上shang述shu三san種zhong情qing況kuang時shi，電dian容rong器qi合he閘zha瞬shun間jian，由you於yu電dian容rong器qi處chu於yu充chong電dian狀zhuang態tai產chan生sheng很hen大da的de衝chong擊ji合he閘zha湧yong流liu
，湧yong流liu過guo大da均jun能neng使shi熔rong斷duan器qi熔rong斷duan。

電容器爆炸

電(dian)容(rong)器(qi)爆(bao)炸(zha)是(shi)工(gong)程(cheng)師(shi)最(zui)不(bu)願(yuan)看(kan)到(dao)的(de)問(wen)題(ti)之(zhi)一(yi)，它(ta)是(shi)一(yi)種(zhong)惡(e)性(xing)事(shi)故(gu)，將(jiang)會(hui)對(dui)係(xi)統(tong)造(zao)成(cheng)巨(ju)大(da)影(ying)響(xiang)。當(dang)電(dian)容(rong)器(qi)內(nei)部(bu)元(yuan)件(jian)故(gu)障(zhang)擊(ji)穿(chuan)引(yin)起(qi)電(dian)容(rong)器(qi)極(ji)間(jian)貫(guan)性(xing)短(duan)路(lu)時(shi)，與(yu)其(qi)並(bing)聯(lian)運(yun)行(xing)的(de)其(qi)他(ta)電(dian)容(rong)器(qi)將(jiang)對(dui)故(gu)障(zhang)電(dian)容(rong)放(fang)電(dian)

，如(ru)果(guo)注(zhu)入(ru)電(dian)容(rong)器(qi)的(de)能(neng)量(liang)大(da)於(yu)外(wai)殼(ke)所(suo)能(neng)承(cheng)受(shou)的(de)爆(bao)破(po)能(neng)量(liang)
，則(ze)電(dian)容(rong)器(qi)爆(bao)炸(zha)。

以(yi)上(shang)就(jiu)是(shi)本(ben)文(wen)對(dui)並(bing)聯(lian)的(de)高(gao)壓(ya)電(dian)容(rong)常(chang)見(jian)故(gu)障(zhang)所(suo)進(jin)行(xing)的(de)簡(jian)要(yao)分(fen)析(xi)，希(xi)望(wang)能(neng)夠(gou)幫(bang)助(zhu)工(gong)程(cheng)師(shi)在(zai)夏(xia)季(ji)檢(jian)修(xiu)過(guo)程(cheng)中(zhong)，快(kuai)速(su)找(zhao)到(dao)故(gu)障(zhang)點(dian)所(suo)在(zai)並(bing)進(jin)行(xing)處(chu)理(li)，維(wei)持(chi)係(xi)統(tong)正(zheng)常(chang)工(gong)作(zuo)運(yun)轉(zhuan)。

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