串聯諧振這個詞在電力工作者當中是耳熟能詳的一個詞，串聯諧振的全稱是變頻串聯諧振耐壓試驗裝置。在電力試驗工作當中，該試驗裝置常用于電氣設備的絕緣耐壓試驗當中，那么，串聯諧振在電力系統中的運用范圍有哪些呢？本文為你介紹。

       我們以(yi)所研發的(de)(de)(de)變(bian)頻(pin)串聯諧振(zhen)耐(nai)壓(ya)(ya)試驗(yan)裝(zhuang)置為例。該(gai)裝(zhuang)置主要用于不同電(dian)壓(ya)(ya)等級(ji)的(de)(de)(de)電(dian)力電(dian)纜(lan)，以(yi)及不同電(dian)壓(ya)(ya)等級(ji)的(de)(de)(de)組合(he)電(dian)氣開關柜，火力和水力發電(dian)機或電(dian)力變(bian)壓(ya)(ya)器的(de)(de)(de)工頻(pin)交(jiao)流(liu)耐(nai)壓(ya)(ya)試驗(yan)，并(bing)且，試驗(yan)裝(zhuang)置是(shi)可以(yi)根據不同電(dian)壓(ya)(ya)等級(ji)的(de)(de)(de)被試品(pin)，來進行符合(he)試驗(yan)需要的(de)(de)(de)定制的(de)(de)(de)。總結一句話就是(shi)：該(gai)試驗(yan)裝(zhuang)置基本可以(yi)滿足(zu)所有大容量電(dian)氣設備的(de)(de)(de)絕緣耐(nai)壓(ya)(ya)試驗(yan)的(de)(de)(de)。

       串聯(lian)(lian)諧振(zhen)耐壓(ya)試(shi)驗裝(zhuang)置的(de)(de)基本(ben)原(yuan)理，是采(cai)用(yong)可調節串聯(lian)(lian)諧振(zhen)試(shi)驗設(she)備與被(bei)試(shi)品電(dian)(dian)(dian)(dian)(dian)(dian)容諧振(zhen)產(chan)生交流試(shi)驗電(dian)(dian)(dian)(dian)(dian)(dian)壓(ya)。當(dang)串聯(lian)(lian)諧振(zhen)在具有(you)電(dian)(dian)(dian)(dian)(dian)(dian)阻R、電(dian)(dian)(dian)(dian)(dian)(dian)感L，還有(you)電(dian)(dian)(dian)(dian)(dian)(dian)容C元件(jian)的(de)(de)交流電(dian)(dian)(dian)(dian)(dian)(dian)路(lu)(lu)(lu)當(dang)中，一(yi)般(ban)電(dian)(dian)(dian)(dian)(dian)(dian)路(lu)(lu)(lu)兩(liang)端的(de)(de)電(dian)(dian)(dian)(dian)(dian)(dian)壓(ya)和當(dang)中電(dian)(dian)(dian)(dian)(dian)(dian)流位(wei)(wei)相(xiang)(xiang)是不(bu)一(yi)樣的(de)(de)。這(zhe)個時候，若是調節電(dian)(dian)(dian)(dian)(dian)(dian)路(lu)(lu)(lu)元件(jian)(L或(huo)C)的(de)(de)參(can)數，或(huo)改變(bian)電(dian)(dian)(dian)(dian)(dian)(dian)源頻(pin)率(lv)，則(ze)能夠使(shi)(shi)兩(liang)者位(wei)(wei)相(xiang)(xiang)相(xiang)(xiang)同，從而(er)使(shi)(shi)得(de)電(dian)(dian)(dian)(dian)(dian)(dian)路(lu)(lu)(lu)整體，出現純電(dian)(dian)(dian)(dian)(dian)(dian)阻性。當(dang)電(dian)(dian)(dian)(dian)(dian)(dian)路(lu)(lu)(lu)達(da)到(dao)這(zhe)種狀態之后(hou)，我們就稱它為(wei)(wei)諧振(zhen)。真是因(yin)為(wei)(wei)在諧振(zhen)的(de)(de)狀態之下，電(dian)(dian)(dian)(dian)(dian)(dian)路(lu)(lu)(lu)的(de)(de)總阻抗(kang)可以(yi)達(da)到(dao)極(ji)值或(huo)近似(si)達(da)到(dao)極(ji)值。這(zhe)樣就為(wei)(wei)耐壓(ya)試(shi)驗創造了條(tiao)件(jian)。

       利用串(chuan)聯諧(xie)振(zhen)的試驗(yan)(yan)(yan)原理，變頻串(chuan)聯諧(xie)振(zhen)耐(nai)壓試驗(yan)(yan)(yan)裝(zhuang)置(zhi)也廣泛運(yun)用于電(dian)力(li)系統中的大容(rong)量電(dian)氣(qi)設(she)備的絕緣耐(nai)壓試驗(yan)(yan)(yan)當中，是大容(rong)量電(dian)氣(qi)設(she)備做有效的絕緣耐(nai)壓試驗(yan)(yan)(yan)的不可代(dai)替的試驗(yan)(yan)(yan)裝(zhuang)置(zhi)。