變壓器組件（Transformer）的(de)(de)(de)(de)縱(zong)絕(jue)(jue)緣(yuan)主要(yao)依(yi)賴(lai)于繞組(zu)內的(de)(de)(de)(de)絕(jue)(jue)緣(yuan)介(jie)(jie)(jie)質(zhi)(zhi)(zhi)(zhi)(起決定作(zuo)用(yong)(yong)的(de)(de)(de)(de)物(wu)(wu)質(zhi)(zhi)(zhi)(zhi))——漆(qi)(qi)包線(xian)本(ben)身的(de)(de)(de)(de)絕(jue)(jue)緣(yuan)漆(qi)(qi)（解釋：成(cheng)膜物(wu)(wu)質(zhi)(zhi)(zhi)(zhi)在(zai)(zai)溶劑(ji)中膠(jiao)體溶液(ye)的(de)(de)(de)(de)總稱 ）、變(bian)(bian)(bian)壓(ya)(ya)(ya)(ya)器(qi)(qi)(qi)油、絕(jue)(jue)緣(yuan)紙、浸漬漆(qi)(qi)和(he)絕(jue)(jue)緣(yuan)膠(jiao)等(deng)等(deng)（不同(tong)種類(lei)的(de)(de)(de)(de)變(bian)(bian)(bian)壓(ya)(ya)(ya)(ya)器(qi)(qi)(qi)可能(neng)（maybe)包含(han)(han)其(qi)中一種或多種絕(jue)(jue)緣(yuan)介(jie)(jie)(jie)質(zhi)(zhi)(zhi)(zhi)）；縱(zong)絕(jue)(jue)緣(yuan)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)介(jie)(jie)(jie)質(zhi)(zhi)(zhi)(zhi)很(hen)難保(bao)證100%的(de)(de)(de)(de)純凈度(du)，難免混(hun)含(han)(han)固體雜質(zhi)(zhi)(zhi)(zhi)、氣泡或水份(fen)等(deng)，生產過程(guò chéng)中也(ye)(ye)會(hui)(hui)受到不同(tong)程度(du)的(de)(de)(de)(de)損傷；變(bian)(bian)(bian)壓(ya)(ya)(ya)(ya)器(qi)(qi)(qi)工(gong)作(zuo)時(shi)(shi)的(de)(de)(de)(de)高(gao)(gao)(gao)場(chang)(chang)強集中在(zai)(zai)這些缺陷處，長期(qi)負載(zai)(zai)(zai)運作(zuo)的(de)(de)(de)(de)溫升又降低(di)（reduce)絕(jue)(jue)緣(yuan)介(jie)(jie)(jie)質(zhi)(zhi)(zhi)(zhi)的(de)(de)(de)(de)擊穿電(dian)(dian)(dian)(dian)(dian)(dian)(dian)壓(ya)(ya)(ya)(ya)，造(zao)成(cheng)局部（part)放電(dian)(dian)(dian)(dian)(dian)(dian)(dian)，電(dian)(dian)(dian)(dian)(dian)(dian)(dian)介(jie)(jie)(jie)質(zhi)(zhi)(zhi)(zhi)通過(tōng guò)外(wai)施交(jiao)(jiao)變(bian)(bian)(bian)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)場(chang)(chang)吸(xi)收的(de)(de)(de)(de)功率（指物(wu)(wu)體在(zai)(zai)單位(wei)時(shi)(shi)間內所做的(de)(de)(de)(de)功的(de)(de)(de)(de)多少）即介(jie)(jie)(jie)質(zhi)(zhi)(zhi)(zhi)損耗會(hui)(hui)顯著(zhu)（striking）增(zeng)(zeng)加，導致電(dian)(dian)(dian)(dian)(dian)(dian)(dian)介(jie)(jie)(jie)質(zhi)(zhi)(zhi)(zhi)發(fa)熱嚴重，介(jie)(jie)(jie)質(zhi)(zhi)(zhi)(zhi)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)導增(zeng)(zeng)大(da)，該部位(wei)的(de)(de)(de)(de)大(da)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)流也(ye)(ye)會(hui)(hui)產生熱量(liang)(Heat)，就會(hui)(hui)使電(dian)(dian)(dian)(dian)(dian)(dian)(dian)介(jie)(jie)(jie)質(zhi)(zhi)(zhi)(zhi)的(de)(de)(de)(de)溫度(du)繼續升高(gao)(gao)(gao)，而溫度(du)的(de)(de)(de)(de)升高(gao)(gao)(gao)反過來又使電(dian)(dian)(dian)(dian)(dian)(dian)(dian)介(jie)(jie)(jie)質(zhi)(zhi)(zhi)(zhi)的(de)(de)(de)(de)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)導增(zeng)(zeng)加。變(bian)(bian)(bian)頻(pin)(pin)串聯諧振(zhen)主要(yao)由變(bian)(bian)(bian)頻(pin)(pin)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)源(yuan)，勵磁變(bian)(bian)(bian)壓(ya)(ya)(ya)(ya)器(qi)(qi)(qi)，高(gao)(gao)(gao)壓(ya)(ya)(ya)(ya)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)抗(kang)器(qi)(qi)(qi)，高(gao)(gao)(gao)壓(ya)(ya)(ya)(ya)分壓(ya)(ya)(ya)(ya)器(qi)(qi)(qi)等(deng)組(zu)成(cheng)。變(bian)(bian)(bian)頻(pin)(pin)控(kong)(kong)(kong)制(zhi)(zhi)器(qi)(qi)(qi)又分兩(liang)大(da)類(lei)，20KW及以上為(wei)控(kong)(kong)(kong)制(zhi)(zhi)臺式(shi)，20KW以下為(wei)便攜箱式(shi)；它由控(kong)(kong)(kong)制(zhi)(zhi)器(qi)(qi)(qi)和(he)濾波器(qi)(qi)(qi)組(zu)成(cheng)。變(bian)(bian)(bian)頻(pin)(pin)串聯諧振(zhen)耐壓(ya)(ya)(ya)(ya)試(shi)驗(yan)裝置(zhi)采(cai)用(yong)(yong)了(le)專(zhuan)用(yong)(yong)的(de)(de)(de)(de)SPWM數字(zi)式(shi)波形(xing)發(fa)生芯片，頻(pin)(pin)率分辨率16位(wei)，在(zai)(zai)20~300Hz時(shi)(shi)頻(pin)(pin)率細度(du)可達0.1Hz；采(cai)用(yong)(yong)了(le)正交(jiao)(jiao)非同(tong)步固定式(shi)載(zai)(zai)(zai)波調制(zhi)(zhi)方(fang)式(shi)，確保(bao)在(zai)(zai)整個頻(pin)(pin)率區間內輸(shu)出波形(xing)良好；功率部分采(cai)用(yong)(yong)了(le)先進(jin)的(de)(de)(de)(de)IPM模塊，在(zai)(zai)最(zui)小重量(liang)下確保(bao)儀器(qi)(qi)(qi)穩定和(he)安全。串聯諧振(zhen)耐壓(ya)(ya)(ya)(ya)測試(shi)儀主要(yao)由變(bian)(bian)(bian)頻(pin)(pin)控(kong)(kong)(kong)制(zhi)(zhi)器(qi)(qi)(qi)、勵磁變(bian)(bian)(bian)壓(ya)(ya)(ya)(ya)器(qi)(qi)(qi)、高(gao)(gao)(gao)壓(ya)(ya)(ya)(ya)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)抗(kang)器(qi)(qi)(qi)、高(gao)(gao)(gao)壓(ya)(ya)(ya)(ya)分壓(ya)(ya)(ya)(ya)器(qi)(qi)(qi)等(deng)組(zu)成(cheng)。變(bian)(bian)(bian)頻(pin)(pin)諧振(zhen)試(shi)驗(yan)裝置(zhi)廣泛用(yong)(yong)于電(dian)(dian)(dian)(dian)(dian)(dian)(dian)力(li)、冶金、石油、化(hua)工(gong)等(deng)行業，適用(yong)(yong)于大(da)容(rong)量(liang)、高(gao)(gao)(gao)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)壓(ya)(ya)(ya)(ya)的(de)(de)(de)(de)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)容(rong)性試(shi)品的(de)(de)(de)(de)交(jiao)(jiao)接(jie)和(he)預防性試(shi)驗(yan)。如此長期(qi)惡性循環（continue)下去，最(zui)后導致電(dian)(dian)(dian)(dian)(dian)(dian)(dian)介(jie)(jie)(jie)質(zhi)(zhi)(zhi)(zhi)的(de)(de)(de)(de)熱擊穿和(he)整個變(bian)(bian)(bian)壓(ya)(ya)(ya)(ya)器(qi)(qi)(qi)的(de)(de)(de)(de)毀壞(huai)。這一故障（fault）表現(xian)(xian)在(zai)(zai)變(bian)(bian)(bian)壓(ya)(ya)(ya)(ya)器(qi)(qi)(qi)的(de)(de)(de)(de)特(te)性上就是(shi)空載(zai)(zai)(zai)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)流和(he)空載(zai)(zai)(zai)功耗顯著(zhu)增(zeng)(zeng)加，并且繞組(zu)有灼熱、飛弧(hu)、振(zhen)動和(he)嘯叫等(deng)不良現(xian)(xian)象。可見利用(yong)(yong)感應耐壓(ya)(ya)(ya)(ya)試(shi)驗(yan)檢測出變(bian)(bian)(bian)壓(ya)(ya)(ya)(ya)器(qi)(qi)(qi)是(shi)否含(han)(han)有縱(zong)絕(jue)(jue)緣(yuan)缺陷是(shi)必要(yao)的(de)(de)(de)(de)。

　　相對于變(bian)(bian)壓(ya)(ya)(ya)（氣壓(ya)(ya)(ya)變(bian)(bian)量)器(qi)的(de)(de)(de)主絕(jue)緣(insulated)即繞(rao)組(zu)與(yu)繞(rao)組(zu)之間(jian)以及(ji)繞(rao)組(zu)與(yu)鐵(tie)芯(xin)之間(jian)的(de)(de)(de)絕(jue)緣來說，變(bian)(bian)壓(ya)(ya)(ya)器(qi)組(zu)件還有另外一(yi)(yi)項(xiang)重要的(de)(de)(de)絕(jue)緣性能指標(biao)(biao)――縱絕(jue)緣。縱絕(jue)緣是指變(bian)(bian)壓(ya)(ya)(ya)器(qi)繞(rao)組(zu)具有不(bu)(bu)同電(dian)位的(de)(de)(de)不(bu)(bu)同點和(he)不(bu)(bu)同部位之間(jian)的(de)(de)(de)絕(jue)緣，主要包(bao)括繞(rao)組(zu)匝(za)間(jian)、層間(jian)和(he)段間(jian)的(de)(de)(de)絕(jue)緣性能，而國(guo)家(jia)(jia)標(biao)(biao)準（批準發布：國(guo)家(jia)(jia)標(biao)(biao)準化主管機構）和(he)國(guo)際電(dian)工委員(yuan)會（IEC）標(biao)(biao)準中規定的(de)(de)(de)“感應(ying)耐壓(ya)(ya)(ya)試驗(yan)”則是專(zhuan)門用于檢(jian)驗(yan)變(bian)(bian)壓(ya)(ya)(ya)器(qi)縱絕(jue)緣性能的(de)(de)(de)測(ce)試方法之一(yi)(yi)。