一、概述
HTXZ型變頻串聯諧振試(shi)驗(yan)裝置適用于變壓(ya)器(qi)、斷路器(qi)、開關(guan)、GIS系統、電(dian)纜、套管、絕緣子等設(she)備(bei)的(de)(de)(de)交流(liu)(liu)耐壓(ya)試(shi)驗(yan)。具備(bei)高壓(ya)過壓(ya)保(bao)護(hu)、低壓(ya)過流(liu)(liu)保(bao)護(hu)，以及(ji)失諧保(bao)護(hu)、零(ling)位、閃絡(luo)保(bao)護(hu)、緊急停機、欠壓(ya)保(bao)護(hu)等多重保(bao)護(hu)功能。既(ji)可滿足(zu)高電(dian)壓(ya)、小電(dian)流(liu)(liu)的(de)(de)(de)設(she)備(bei)試(shi)驗(yan)條件(jian)要求，又(you)可滿足(zu)低電(dian)壓(ya)、大電(dian)流(liu)(liu)的(de)(de)(de)設(she)備(bei)試(shi)驗(yan)條件(jian)要求，具有較寬的(de)(de)(de)適用范圍。

串(chuan)聯(lian)諧(xie)振(zhen)試驗裝置一般(ban)采(cai)用電(dian)(dian)(dian)感、電(dian)(dian)(dian)容諧(xie)振(zhen)電(dian)(dian)(dian)路(lu)的品質因數可達幾十甚(shen)至幾百。所以可以串(chuan)聯(lian)諧(xie)振(zhen)又叫(jiao)電(dian)(dian)(dian)壓諧(xie)振(zhen)。在(zai)電(dian)(dian)(dian)力管理系統中(zhong)，串(chuan)聯(lian)諧(xie)振(zhen)將會發展 產生企業高(gao)出(chu)國家電(dian)(dian)(dian)網額定(ding)輸出(chu)電(dian)(dian)(dian)壓數倍的過電(dian)(dian)(dian)壓，對電(dian)(dian)(dian)力電(dian)(dian)(dian)子(zi)設備的安(an)全環境造成學生很(hen)大程度危害。

1000KV變頻串聯諧振測試裝置

1000KV變頻串聯諧振測試裝置

原理
我(wo)們已知(zhi)，在回(hui)路頻(pin)率f=1/2π√LC時(shi)，回(hui)路產(chan)生(sheng)諧(xie)(xie)(xie)振(zhen)，此時(shi)試(shi)(shi)品(pin)(pin)上的(de)電(dian)(dian)(dian)壓(ya)(ya)(ya)是(shi)勵磁變(bian)高壓(ya)(ya)(ya)端輸(shu)(shu)出(chu)電(dian)(dian)(dian)壓(ya)(ya)(ya)的(de)Q倍。Q為系統品(pin)(pin)質因(yin)素，即電(dian)(dian)(dian)壓(ya)(ya)(ya)諧(xie)(xie)(xie)振(zhen)倍數(shu)，一般為幾十到(dao)一百以上。先通過調節變(bian)頻(pin)電(dian)(dian)(dian)源的(de)輸(shu)(shu)出(chu)頻(pin)率使回(hui)路發(fa)生(sheng)串聯(lian)諧(xie)(xie)(xie)振(zhen)，再在回(hui)路諧(xie)(xie)(xie)振(zhen)的(de)條件(jian)下調節變(bian)頻(pin)電(dian)(dian)(dian)源輸(shu)(shu)出(chu)電(dian)(dian)(dian)壓(ya)(ya)(ya)使試(shi)(shi)品(pin)(pin)電(dian)(dian)(dian)壓(ya)(ya)(ya)達(da)到(dao)試(shi)(shi)驗(yan)值(zhi)。由于回(hui)路的(de)諧(xie)(xie)(xie)振(zhen)，變(bian)頻(pin)電(dian)(dian)(dian)源較小(xiao)的(de)輸(shu)(shu)出(chu)電(dian)(dian)(dian)壓(ya)(ya)(ya)就可在試(shi)(shi)品(pin)(pin)CX上產(chan)生(sheng)較高的(de)試(shi)(shi)驗(yan)電(dian)(dian)(dian)壓(ya)(ya)(ya)。

主要用途
1、6kV-500kV高(gao)壓交(jiao)聯電(dian)纜的交(jiao)流耐壓試驗(yan)

2、發(fa)電(dian)機(ji)的交流(liu)耐壓試驗

3、GIS和SF6開關的交流耐壓試驗

4、6kV-500kV變壓(ya)器的工頻耐(nai)壓(ya)試驗

5、其它(ta)電力高(gao)壓(ya)設備如母線，套管，互感(gan)器(qi)的交流耐(nai)壓(ya)試驗(yan)。

產品原理
在(zai)(zai)回(hui)(hui)路頻(pin)(pin)率f=1/2π√LC時，回(hui)(hui)路產生諧(xie)振(zhen)，此(ci)時試(shi)(shi)品(pin)上(shang)的(de)(de)電(dian)(dian)壓是勵磁變(bian)高壓端輸出(chu)電(dian)(dian)壓的(de)(de)Q倍。Q為(wei)系統品(pin)質因素，即電(dian)(dian)壓諧(xie)振(zhen)倍數，一般為(wei)幾(ji)十到一百以上(shang)。先通過(guo)調(diao)節(jie)變(bian)頻(pin)(pin)電(dian)(dian)源的(de)(de)輸出(chu)頻(pin)(pin)率使(shi)回(hui)(hui)路發生串聯諧(xie)振(zhen)，再在(zai)(zai)回(hui)(hui)路諧(xie)振(zhen)的(de)(de)條件(jian)下調(diao)節(jie)變(bian)頻(pin)(pin)電(dian)(dian)源輸出(chu)電(dian)(dian)壓使(shi)試(shi)(shi)品(pin)電(dian)(dian)壓達到試(shi)(shi)驗(yan)值。由于回(hui)(hui)路的(de)(de)諧(xie)振(zhen)，變(bian)頻(pin)(pin)電(dian)(dian)源較(jiao)小的(de)(de)輸出(chu)電(dian)(dian)壓就(jiu)可在(zai)(zai)試(shi)(shi)品(pin)CX上(shang)產生較(jiao)高的(de)(de)試(shi)(shi)驗(yan)電(dian)(dian)壓。