變壓(ya)器繞組變形測(ce)試儀能準(zhun)確繪(hui)制各相頻(pin)域響(xiang)(xiang)應(ying)(ying)曲(qu)線(xian)(xian)(xian),通(tong)過(guo)測(ce)量(liang)曲(qu)線(xian)(xian)(xian)的(de)橫(heng)向(xiang)、縱(zong)向(xiang)對比,可以(yi)非常準(zhun)確的(de)判(pan)斷變(bian)(bian)壓器(qi)(qi)(qi)的(de)變(bian)(bian)形(xing)程(cheng)度。當變(bian)(bian)壓器(qi)(qi)(qi)在試驗過(guo)程(cheng)中(zhong)出現匝間、相間短(duan)路,在運(yun)行中(zhong)出現短(duan)路或(huo)其他故障因(yin)電(dian)磁拉力造成(cheng)線(xian)(xian)(xian)圈移位(wei),在運(yun)輸過(guo)程(cheng)中(zhong)發(fa)送碰撞造成(cheng)線(xian)(xian)(xian)圈相對移位(wei),這些因(yin)素都(dou)會使變(bian)(bian)壓器(qi)(qi)(qi)分布(bu)參數(shu)發(fa)生變(bian)(bian)化,其頻(pin)域響(xiang)(xiang)應(ying)(ying)也(ye)發(fa)生變(bian)(bian)化,根據頻(pin)域響(xiang)(xiang)應(ying)(ying)曲(qu)線(xian)(xian)(xian)即(ji)可判(pan)斷變(bian)(bian)壓器(qi)(qi)(qi)的(de)變(bian)(bian)形(xing)程(cheng)度。繞(rao)組變(bian)(bian)形(xing)測(ce)試儀符(fu)合DL/T911 2004《電(dian)力變(bian)(bian)壓器(qi)(qi)(qi)繞(rao)組變(bian)(bian)形(xing)的(de)頻(pin)率響(xiang)(xiang)應(ying)(ying)分析法》標準(zhun)。
變壓(ya)器(qi)繞組變形測(ce)試(shi)儀在測(ce)試(shi)中的(de)注意事項(xiang):
1.做(zuo)完直(zhi)流電阻試驗(yan)(yan)后不能立(li)即做(zuo)繞組變形(xing)試驗(yan)(yan);
2.試驗(yan)前檢查變(bian)壓(ya)器接地狀況是否良好,套管(guan)線(xian)應(ying)全(quan)部斷開;
3.不可用其他測試(shi)線代替本儀(yi)器(qi)標配(pei)的(de)測試(shi)線;
4.儀(yi)器(qi)應存放于通(tong)風干燥(zao)處,避免潮濕(shi)。