電(dian)纜(lan)串聯(lian)諧(xie)振(zhen)做電(dian)纜(lan)交流耐壓(ya)試驗有幾種方(fang)法？

電力工作者在對電纜串聯諧振進行交流耐壓試驗時，會接觸到一些試驗的方法，具體有哪些試驗方法呢？本文為你介紹。
電纜串聯諧振做電纜交流耐壓試驗有：電纜試驗超低頻法、電纜試驗振蕩電壓法、電纜試驗諧振耐壓法三大方法。下文來詳細介紹。
首先是電纜試驗超低頻法。由于常用的工頻耐壓試驗中，電纜容量大，試驗變壓器容量大、且需要現場提供相當大的試驗電源，來給電纜提供無功功率，因此，工頻耐壓試驗并不適用于現場。所以就需要采用超低頻作為試驗電源，不僅可以讓試驗變壓器的容量降低，而且在現場試驗操作起來更簡單，但由于此方法檢測出的絕緣缺陷效果不太好，所以詞方法一般在中低壓電纜試驗中應用。
然后是電纜試驗振蕩電壓法。試驗原理是對電纜進行直流充電，電壓達到一定值后，通過間隙對電阻電感放電，就得到一個阻尼振蕩電壓，以此檢查電纜主絕緣和附件的絕緣缺陷。這一方法要比直流耐壓試驗更有效，不過震蕩電壓存在衰減，不能滿足長電纜的需要，且高頻率電壓對電纜有非常大傷害，這是這一方法存在的問題。

后(hou)是(shi)諧(xie)(xie)振(zhen)(zhen)耐(nai)壓(ya)(ya)(ya)試(shi)(shi)(shi)(shi)驗(yan)方(fang)法。此方(fang)法可以滿(man)足(zu)高電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)壓(ya)(ya)(ya)、大電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)流的(de)(de)(de)(de)(de)(de)(de)試(shi)(shi)(shi)(shi)驗(yan)要(yao)求(qiu)(qiu)。諧(xie)(xie)振(zhen)(zhen)耐(nai)壓(ya)(ya)(ya)法按調節方(fang)式(shi)(shi)(shi)(shi)分(fen)為調感(gan)式(shi)(shi)(shi)(shi)和調頻(pin)式(shi)(shi)(shi)(shi);按諧(xie)(xie)振(zhen)(zhen)方(fang)式(shi)(shi)(shi)(shi)分(fen)為串聯諧(xie)(xie)振(zhen)(zhen)和并聯諧(xie)(xie)振(zhen)(zhen)。電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)纜(lan)調感(gan)式(shi)(shi)(shi)(shi)諧(xie)(xie)振(zhen)(zhen)耐(nai)壓(ya)(ya)(ya)是(shi)經過調解回(hui)(hui)路(lu)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)抗器(qi)(qi)的(de)(de)(de)(de)(de)(de)(de)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)感(gan)量(liang)(liang)，讓電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)抗器(qi)(qi)和電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)纜(lan)的(de)(de)(de)(de)(de)(de)(de)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)容(rong)在工頻(pin)（50Hz）下產(chan)生諧(xie)(xie)振(zhen)(zhen)，來達到試(shi)(shi)(shi)(shi)驗(yan)要(yao)求(qiu)(qiu)。電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)纜(lan)調頻(pin)式(shi)(shi)(shi)(shi)諧(xie)(xie)振(zhen)(zhen)耐(nai)壓(ya)(ya)(ya)是(shi)改變(bian)試(shi)(shi)(shi)(shi)驗(yan)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)源的(de)(de)(de)(de)(de)(de)(de)輸出頻(pin)率(lv)，使回(hui)(hui)路(lu)中固定電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)感(gan)量(liang)(liang)的(de)(de)(de)(de)(de)(de)(de)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)抗器(qi)(qi)與試(shi)(shi)(shi)(shi)品(pin)(pin)產(chan)生諧(xie)(xie)振(zhen)(zhen)來達到試(shi)(shi)(shi)(shi)驗(yan)要(yao)求(qiu)(qiu)。電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)纜(lan)串聯諧(xie)(xie)振(zhen)(zhen)法是(shi)當(dang)試(shi)(shi)(shi)(shi)驗(yan)變(bian)壓(ya)(ya)(ya)器(qi)(qi)的(de)(de)(de)(de)(de)(de)(de)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)流滿(man)足(zu)試(shi)(shi)(shi)(shi)驗(yan)要(yao)求(qiu)(qiu)而電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)壓(ya)(ya)(ya)達不(bu)到試(shi)(shi)(shi)(shi)驗(yan)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)壓(ya)(ya)(ya)時(shi)，采(cai)用電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)抗器(qi)(qi)與試(shi)(shi)(shi)(shi)品(pin)(pin)串聯的(de)(de)(de)(de)(de)(de)(de)方(fang)式(shi)(shi)(shi)(shi)進行(xing)試(shi)(shi)(shi)(shi)驗(yan)，當(dang)回(hui)(hui)路(lu)處于諧(xie)(xie)振(zhen)(zhen)狀(zhuang)態時(shi)，試(shi)(shi)(shi)(shi)品(pin)(pin)上(shang)可以產(chan)生Q倍(Q為回(hui)(hui)路(lu)品(pin)(pin)質因數(shu))的(de)(de)(de)(de)(de)(de)(de)變(bian)壓(ya)(ya)(ya)器(qi)(qi)輸出電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)壓(ya)(ya)(ya)，電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)源供給的(de)(de)(de)(de)(de)(de)(de)能(neng)量(liang)(liang)僅僅是(shi)回(hui)(hui)路(lu)中消耗(hao)的(de)(de)(de)(de)(de)(de)(de)有功功率(lv)。電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)纜(lan)并聯諧(xie)(xie)振(zhen)(zhen)法是(shi)當(dang)試(shi)(shi)(shi)(shi)驗(yan)變(bian)壓(ya)(ya)(ya)器(qi)(qi)的(de)(de)(de)(de)(de)(de)(de)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)壓(ya)(ya)(ya)滿(man)足(zu)試(shi)(shi)(shi)(shi)驗(yan)要(yao)求(qiu)(qiu)而電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)流達不(bu)到要(yao)求(qiu)(qiu)時(shi)，采(cai)用電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)抗器(qi)(qi)與試(shi)(shi)(shi)(shi)品(pin)(pin)并聯的(de)(de)(de)(de)(de)(de)(de)方(fang)式(shi)(shi)(shi)(shi)使回(hui)(hui)路(lu)參(can)數(shu)滿(man)足(zu)諧(xie)(xie)振(zhen)(zhen)要(yao)求(qiu)(qiu)進行(xing)試(shi)(shi)(shi)(shi)驗(yan)，此時(shi)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)抗器(qi)(qi)的(de)(de)(de)(de)(de)(de)(de)感(gan)性電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)流補(bu)償試(shi)(shi)(shi)(shi)品(pin)(pin)的(de)(de)(de)(de)(de)(de)(de)容(rong)性電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)流。