資訊：稱為儀用(yong)變(bian)(bian)壓(ya)(ya)(ya)(ya)器(qi)，是電流互(hu)(hu)(hu)(hu)感(gan)器(qi)和(he)電壓(ya)(ya)(ya)(ya)互(hu)(hu)(hu)(hu)感(gan)器(qi)的統稱。能將(jiang)高電壓(ya)(ya)(ya)(ya)變(bian)(bian)成(cheng)(cheng)低電壓(ya)(ya)(ya)(ya)、大電流變(bian)(bian)成(cheng)(cheng)小(xiao)(xiao)電流，用(yong)于量測或(huo)保(bao)護系統。其功能主要是將(jiang)高電壓(ya)(ya)(ya)(ya)或(huo)大電流按比(bi)例(li)變(bian)(bian)換成(cheng)(cheng)標準(zhun)低電壓(ya)(ya)(ya)(ya)或(huo)標準(zhun)小(xiao)(xiao)電流，以便實現(xian)測量儀表、保(bao)護設(she)備(bei)及自(zi)動控(kong)制(zhi)設(she)備(bei)的標準(zhun)化(hua)、小(xiao)(xiao)型化(hua)。同時互(hu)(hu)(hu)(hu)感(gan)器(qi)還可用(yong)來隔開高電壓(ya)(ya)(ya)(ya)系統，以保(bao)證人身和(he)設(she)備(bei)的安全。而在今年8月底，國(guo)網江蘇電科院(yuan)利用(yong)自(zi)行研制(zhi)的國(guo)際首臺特(te)高電壓(ya)(ya)(ya)(ya)互(hu)(hu)(hu)(hu)感(gan)器(qi)試(shi)驗(yan)車(che)完成(cheng)(cheng)了特(te)高壓(ya)(ya)(ya)(ya)變(bian)(bian)壓(ya)(ya)(ya)(ya)器(qi)淮上線(xian)東(dong)吳站(zhan)最(zui)后兩臺1000千(qian)伏(fu)母線(xian)電壓(ya)(ya)(ya)(ya)互(hu)(hu)(hu)(hu)感(gan)器(qi)試(shi)驗(yan)工作。特(te)高壓(ya)(ya)(ya)(ya)互(hu)(hu)(hu)(hu)感(gan)器(qi)現(xian)場試(shi)驗(yan)車(che)在淮上線(xian)工程中(zhong)的成(cheng)(cheng)功應用(yong)，標志著該院(yuan)擁(yong)有了覆蓋110千(qian)伏(fu)~1000千(qian)伏(fu)電壓(ya)(ya)(ya)(ya)等級的全系列高壓(ya)(ya)(ya)(ya)電力互(hu)(hu)(hu)(hu)感(gan)器(qi)移動檢驗(yan)技術，經鑒定屬國(guo)內外首創。 

　　電力互感器現場檢驗是保障電保護裝置準確動作、電能計量準確可靠的重要手段。以往，現場檢驗均采用分散的試驗設備，需搭建臨時平臺，設備體積大、重量沉，設備安裝接線復雜、難度高、安全隱患大，且測試數據無法遠程傳輸，造成現場檢驗時間長、工作效率低、安全系數不高。隨著電網行業(ye)發(fa)(fa)展邁向高(gao)(gao)電壓(ya)等級、大容(rong)量輸送、遠距離傳(chuan)輸的(de)(de)新階(jie)段(duan)，電力互感器現場檢(jian)驗(yan)(yan)(yan)技(ji)術發(fa)(fa)展水平、檢(jian)驗(yan)(yan)(yan)設備狀況、安全性能無法適應現場高(gao)(gao)電壓(ya)、大電流的(de)(de)發(fa)(fa)展趨勢，特別是在特高(gao)(gao)壓(ya)變電站(zhan)現場試驗(yan)(yan)(yan)中(zhong)，傳(chuan)統檢(jian)驗(yan)(yan)(yan)方式和試驗(yan)(yan)(yan)能力已無法達到規程(cheng)要求的(de)(de)檢(jian)驗(yan)(yan)(yan)條件。