電纜直(zhi)流耐壓(ya)測試儀是帶(dai)0.75倍電壓(ya)鎖存按(an)鍵功能，并配(pei)有時間繼電器，該能在(zai)試驗中設置定時聲音(yin)報警，整個測試儀便(bian)于(yu)攜帶(dai)，操(cao)作(zuo)方便(bian)，安全可靠，特別適用于(yu)電力檢修部門，發電廠以(yi)及電力檢修單位現場試驗。
電纜直流耐壓測試儀幾種升壓模式：
1、手動升壓模式
開(kai)(kai)機后(hou)(hou)，進入(ru)主(zhu)菜(cai)單，旋(xuan)動(dong)(dong)(dong)設(she)(she)置控制(zhi)桿使(shi)光標指(zhi)向“手(shou)動(dong)(dong)(dong)升(sheng)壓(ya)(ya)(ya)(ya)(ya)"選(xuan)(xuan)項，點擊控制(zhi)桿，進入(ru)手(shou)動(dong)(dong)(dong)模式參數(shu)(shu)設(she)(she)置界面，根據具體的(de)(de)試驗(yan)要求設(she)(she)置各項參數(shu)(shu)后(hou)(hou)，即(ji)可進入(ru)升(sheng)壓(ya)(ya)(ya)(ya)(ya)界面。先按(an)(an)高(gao)壓(ya)(ya)(ya)(ya)(ya)通按(an)(an)鈕，紅燈亮(liang)起后(hou)(hou)，再旋(xuan)動(dong)(dong)(dong)旋(xuan)鈕，當電(dian)壓(ya)(ya)(ya)(ya)(ya)升(sheng)至試驗(yan)電(dian)壓(ya)(ya)(ya)(ya)(ya)設(she)(she)定值，計(ji)(ji)時(shi)器開(kai)(kai)始(shi)計(ji)(ji)時(shi)，計(ji)(ji)時(shi)完(wan)畢后(hou)(hou)系(xi)(xi)(xi)統(tong)將自(zi)動(dong)(dong)(dong)降(jiang)(jiang)壓(ya)(ya)(ya)(ya)(ya)回(hui)零(ling)，然后(hou)(hou)彈(dan)出(chu)試驗(yan)記錄保存(cun)對(dui)話框，做(zuo)出(chu)選(xuan)(xuan)擇后(hou)(hou)，該(gai)次(ci)(ci)試驗(yan)完(wan)畢；如果電(dian)壓(ya)(ya)(ya)(ya)(ya)未達到(dao)設(she)(she)定的(de)(de)試驗(yan)電(dian)壓(ya)(ya)(ya)(ya)(ya)值時(shi)，按(an)(an)下0.75UDC-1mA按(an)(an)鈕，則系(xi)(xi)(xi)統(tong)會自(zi)動(dong)(dong)(dong)降(jiang)(jiang)壓(ya)(ya)(ya)(ya)(ya)到(dao)當前電(dian)壓(ya)(ya)(ya)(ya)(ya)值的(de)(de)0.75倍，然后(hou)(hou)以設(she)(she)定的(de)(de)加(jia)壓(ya)(ya)(ya)(ya)(ya)時(shi)間倒計(ji)(ji)時(shi)，計(ji)(ji)時(shi)完(wan)畢后(hou)(hou)，系(xi)(xi)(xi)統(tong)自(zi)動(dong)(dong)(dong)降(jiang)(jiang)壓(ya)(ya)(ya)(ya)(ya)回(hui)零(ling)，然后(hou)(hou)彈(dan)出(chu)試驗(yan)記錄保存(cun)對(dui)話框，做(zuo)出(chu)選(xuan)(xuan)擇后(hou)(hou)，該(gai)次(ci)(ci)試驗(yan)完(wan)畢。
2、自動升壓模式
開(kai)機后(hou)，進入(ru)主菜單，旋動(dong)(dong)設置控制(zhi)桿使光標(biao)指向“自(zi)(zi)動(dong)(dong)升壓"選(xuan)項，點擊控制(zhi)桿，進入(ru)自(zi)(zi)動(dong)(dong)模式參(can)數設置界(jie)面，根據具體的試驗(yan)要求設置各項參(can)數后(hou)，即可進入(ru)升壓界(jie)面。此時(shi)，按下高(gao)壓通按鈕后(hou)，系統將開(kai)始自(zi)(zi)動(dong)(dong)升壓，升至試驗(yan)電壓設定值后(hou)，穩壓并開(kai)始計時(shi)，計時(shi)完畢后(hou)系統將會(hui)自(zi)(zi)動(dong)(dong)降壓回零，然后(hou)彈出試驗(yan)記錄(lu)保存對話框，做(zuo)出選(xuan)擇后(hou)，該次試驗(yan)完畢。
3、MOA升壓測試(shi)模(mo)式
開機(ji)后(hou)(hou)，進(jin)入主菜單(dan)，旋動設置控制(zhi)桿(gan)使光標指向“MOA升(sheng)壓"選項，點擊控制(zhi)桿(gan)，進(jin)入自(zi)(zi)動模式參(can)數設置界(jie)面(mian)，根據具體的(de)試驗(yan)要求設置各項參(can)數后(hou)(hou)，即可(ke)進(jin)入升(sheng)壓界(jie)面(mian)。此時(shi)，按下(xia)高壓通(tong)按鈕(niu)后(hou)(hou)，系(xi)統(tong)將開始自(zi)(zi)動升(sheng)壓，升(sheng)至試驗(yan)電流(liu)設定(ding)值后(hou)(hou)，穩(wen)流(liu)并開始計(ji)(ji)(ji)時(shi)，計(ji)(ji)(ji)時(shi)完畢(bi)(bi)后(hou)(hou)系(xi)統(tong)自(zi)(zi)動降壓至原來電壓值的(de)0.75倍，穩(wen)壓并重新開始計(ji)(ji)(ji)時(shi)，計(ji)(ji)(ji)時(shi)完畢(bi)(bi)后(hou)(hou)系(xi)統(tong)將會自(zi)(zi)動降壓回零，彈出試驗(yan)記錄保存對話框，做出選擇后(hou)(hou)，該次試驗(yan)完畢(bi)(bi)。試驗(yan)結束(shu)后(hou)(hou)，界(jie)面(mian)返回到主菜單(dan)界(jie)面(mian)，先用放電棒充分放電后(hou)(hou)，再(zai)關(guan)閉電源。
4、試驗(yan)完畢，關(guan)閉電源開(kai)關(guan)。
5、對于氧化鋅避雷器等(deng)小電(dian)(dian)容(rong)試品(pin)一般(ban)(ban)通過倍壓(ya)筒(tong)內部測(ce)壓(ya)電(dian)(dian)阻(zu)放(fang)(fang)電(dian)(dian)即(ji)可(ke)。而(er)對電(dian)(dian)纜(lan)等(deng)大(da)電(dian)(dian)容(rong)試品(pin)須安裝(zhuang)配(pei)套(tao)限流電(dian)(dian)阻(zu)，一般(ban)(ban)要(yao)待試品(pin)電(dian)(dian)壓(ya)自放(fang)(fang)電(dian)(dian)至試驗電(dian)(dian)壓(ya)的(de)20%以下，再通過配(pei)套(tao)的(de)放(fang)(fang)電(dian)(dian)棒進(jin)行(xing)放(fang)(fang)電(dian)(dian)。待試品(pin)充分放(fang)(fang)電(dian)(dian)后并掛好接(jie)地(di)線(xian)，才允許進(jin)行(xing)高壓(ya)引線(xian)的(de)拆(chai)除(chu)和更換(huan)接(jie)線(xian)工作。
