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標題:耐電壓測試儀ZHZ8A(數顯)
產品概述
產品概述(shu):
耐(nai)電(dian)(dian)壓(ya)測(ce)(ce)試(shi)儀ZHZ8A(數顯)是測(ce)(ce)量(liang)耐(nai)電(dian)(dian)壓(ya)強度的(de)(de)儀器(qi),它可以(yi)直(zhi)(zhi)觀、準確、快(kuai)速、可靠地測(ce)(ce)試(shi)各種(zhong)被測(ce)(ce)對象的(de)(de)擊(ji)穿電(dian)(dian)壓(ya)、漏電(dian)(dian)流等電(dian)(dian)氣安(an)全(quan)性能(neng)指標(biao),并(bing)可以(yi)作為交(直(zhi)(zhi))流高(gao)電(dian)(dian)壓(ya)源用來測(ce)(ce)試(shi)元器(qi)件和(he)整(zheng)機性能(neng)。ZHZ8耐(nai)壓(ya)測(ce)(ce)試(shi)產品(pin)系列是按(an)照IEC、ISO、BS、UL、JIS等國內的(de)(de)安(an)全(quan)標(biao)準要求而設計,耐(nai)壓(ya)從3kV~10kV,漏電(dian)(dian)流從0~200mA,特殊要求另定。適合各種(zhong)家(jia)用電(dian)(dian)器(qi)、電(dian)(dian)源、電(dian)(dian)纜線、變壓(ya)器(qi)、接線端子(zi)、高(gao)壓(ya)膠木電(dian)(dian)器(qi)、開關電(dian)(dian)源插(cha)頭座、電(dian)(dian)機、電(dian)(dian)子(zi)儀器(qi)、儀表、整(zheng)機等,以(yi)及強電(dian)(dian)系統的(de)(de)安(an)全(quan)耐(nai)壓(ya)和(he)漏電(dian)(dian)流的(de)(de)測(ce)(ce)試(shi)、同(tong)時也是科研(yan)實(shi)驗(yan)室、技(ji)術監督(du)部門不可少(shao)的(de)(de)耐(nai)壓(ya)試(shi)驗(yan)設備(bei)。
工作原理:
本儀器(qi)是由高(gao)(gao)壓(ya)(ya)升(sheng)壓(ya)(ya)回路、漏電(dian)(dian)流(liu)(liu)檢測回路、指示儀表組成,高(gao)(gao)壓(ya)(ya)升(sheng)壓(ya)(ya)回路能(neng)(neng)調(diao)整輸出需要的實驗(yan)(yan)(yan)(yan)電(dian)(dian)壓(ya)(ya),漏電(dian)(dian)流(liu)(liu)檢測回路能(neng)(neng)設定(ding)(ding)擊(ji)穿(chuan)(chuan)(保護)電(dian)(dian)流(liu)(liu),指示儀表直(zhi)接讀出實驗(yan)(yan)(yan)(yan)電(dian)(dian)壓(ya)(ya)值和漏電(dian)(dian)流(liu)(liu)值(或(huo)設定(ding)(ding)擊(ji)穿(chuan)(chuan)電(dian)(dian)流(liu)(liu)值)。樣品(pin)在要求的試(shi)驗(yan)(yan)(yan)(yan)電(dian)(dian)壓(ya)(ya)作用下達到規定(ding)(ding)的時間時,儀器(qi)自動(dong)或(huo)被(bei)動(dong)切(qie)斷實驗(yan)(yan)(yan)(yan)電(dian)(dian)壓(ya)(ya);一旦(dan)出現擊(ji)穿(chuan)(chuan),漏電(dian)(dian)流(liu)(liu)超過設定(ding)(ding)的擊(ji)穿(chuan)(chuan)(保護)電(dian)(dian)流(liu)(liu),能(neng)(neng)夠(gou)自動(dong)切(qie)斷輸出電(dian)(dian)壓(ya)(ya),并同時報警,以確定(ding)(ding)樣品(pin)能(neng)(neng)否承受規定(ding)(ding)的絕緣強(qiang)度試(shi)驗(yan)(yan)(yan)(yan)。
操作(zuo)時(shi)必(bi)須戴好(hao)橡膠絕緣手套、坐椅和腳下墊好(hao)橡膠絕緣墊!只有在(zai)測試燈熄滅狀態,無高壓輸出狀態時(shi),才能進行被試品連接或拆卸(xie)操作(zuo)!
操作方(fang)法:
1. 連(lian)接(jie)被測物(wu)體(ti)是(shi)在確(que)定(ding)電壓(ya)表指(zhi)示為(wei)"0",測試燈(deng)熄滅(mie),并(bing)把(ba)地線(xian)連(lian)接(jie)好。
2. 耐(nai)電壓測試儀ZHZ8A(數顯)設定測試電壓所需值。
3. 設(she)定漏電(dian)流測試所需(xu)值(zhi)。
(A) 按(an)動"預置"健。
(B) 選擇(ze)所需電流(liu)范圍檔(dang)
(C) 調節所(suo)需漏電流值。
4. 手動測試
(A)將(jiang)定時設定為"手動(dong)"位(wei)(wei)置(zhi),按(an)"啟動(dong)"健(jian),測(ce)試燈亮,將(jiang)電壓調節旋(xuan)鈕旋(xuan)到需用的指示值。B)測(ce)試完畢后,將(jiang)電壓調節到初(chu)始(shi)位(wei)(wei)置(zhi)后按(an)動(dong)"復位(wei)(wei)"健(jian),電壓輸(shu)出(chu)切(qie)斷(duan),測(ce)試燈滅,此時被測(ce)物(wu)為合格。
(C)如(ru)果被測(ce)物(wu)(wu)體超(chao)過規(gui)定漏電(dian)流值,測(ce)儀(yi)器自(zi)動切(qie)斷(duan)輸出(chu)電(dian)壓,同時蜂鳴器報警(jing),超(chao)漏指示燈(deng)亮,此時被測(ce)物(wu)(wu)為不(bu)合格,按"復(fu)位"健,即(ji)可清除報警(jing)聲。
5.定(ding)時測試
(A)將定時設為"定時"位置,撥時間(jian)預置撥盤,設定所需測試時間(jian)。
(B)按"啟動"鍵,將電壓調到(dao)所需測試值。
(C)此時(shi)(shi)定(ding)(ding)時(shi)(shi)到,測(ce)試電(dian)(dian)壓被(bei)(bei)切(qie)斷,被(bei)(bei)測(ce)物(wu)為合(he)格,若被(bei)(bei)測(ce)物(wu)體超過規(gui)定(ding)(ding)漏電(dian)(dian)電(dian)(dian)流值(zhi),不到計時(shi)(shi)時(shi)(shi)間,超漏燈(deng)亮,蜂鳴(ming)器報(bao)警(jing),被(bei)(bei)測(ce)物(wu)為不合(he)格。