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標題：變壓器直流電阻測試儀
產品概述
直(zhi)(zhi)流(liu)(liu)電(dian)(dian)(dian)(dian)(dian)(dian)阻(zu)測(ce)(ce)(ce)(ce)試(shi)儀(yi)(yi)(yi)簡稱直(zhi)(zhi)流(liu)(liu)電(dian)(dian)(dian)(dian)(dian)(dian)阻(zu)測(ce)(ce)(ce)(ce)量(liang)(liang)(liang)(liang)(liang)(liang)儀(yi)(yi)(yi)、直(zhi)(zhi)流(liu)(liu)電(dian)(dian)(dian)(dian)(dian)(dian)阻(zu)儀(yi)(yi)(yi)、變(bian)壓器(qi)直(zhi)(zhi)流(liu)(liu)電(dian)(dian)(dian)(dian)(dian)(dian)阻(zu)測(ce)(ce)(ce)(ce)試(shi)儀(yi)(yi)(yi)，直(zhi)(zhi)流(liu)(liu)電(dian)(dian)(dian)(dian)(dian)(dian)阻(zu)檢測(ce)(ce)(ce)(ce)儀(yi)(yi)(yi)，直(zhi)(zhi)流(liu)(liu)數字電(dian)(dian)(dian)(dian)(dian)(dian)橋(qiao)等。直(zhi)(zhi)流(liu)(liu)電(dian)(dian)(dian)(dian)(dian)(dian)阻(zu)測(ce)(ce)(ce)(ce)試(shi)是變(bian)壓器(qi)在交(jiao)接、大(da)(da)修和改(gai)變(bian)分接開(kai)關后(hou)，*的試(shi)驗項目。在通常(chang)情況下，用(yong)傳(chuan)統(tong)的方(fang)法(fa)（電(dian)(dian)(dian)(dian)(dian)(dian)橋(qiao)法(fa)和壓降(jiang)法(fa)）測(ce)(ce)(ce)(ce)量(liang)(liang)(liang)(liang)(liang)(liang)變(bian)壓器(qi)繞(rao)組以(yi)及(ji)(ji)大(da)(da)功率(lv)電(dian)(dian)(dian)(dian)(dian)(dian)感(gan)設(she)(she)備(bei)的直(zhi)(zhi)流(liu)(liu)電(dian)(dian)(dian)(dian)(dian)(dian)阻(zu)是一項費(fei)時費(fei)工(gong)的工(gong)作。為了(le)改(gai)變(bian)這種狀況，縮短(duan)測(ce)(ce)(ce)(ce)量(liang)(liang)(liang)(liang)(liang)(liang)時間以(yi)及(ji)(ji)減輕測(ce)(ce)(ce)(ce)試(shi)人員的工(gong)作負(fu)擔(dan)而(er)研制(zhi)開(kai)發(fa)的直(zhi)(zhi)流(liu)(liu)電(dian)(dian)(dian)(dian)(dian)(dian)阻(zu)快(kuai)速測(ce)(ce)(ce)(ce)試(shi)儀(yi)(yi)(yi)。以(yi)高速微控制(zhi)器(qi)為核心，內置充(chong)電(dian)(dian)(dian)(dian)(dian)(dian)電(dian)(dian)(dian)(dian)(dian)(dian)池及(ji)(ji)充(chong)電(dian)(dian)(dian)(dian)(dian)(dian)電(dian)(dian)(dian)(dian)(dian)(dian)路，采用(yong)高速A/D轉換(huan)器(qi)及(ji)(ji)程控電(dian)(dian)(dian)(dian)(dian)(dian)流(liu)(liu)源(yuan)技(ji)術，達到了(le)*的測(ce)(ce)(ce)(ce)量(liang)(liang)(liang)(liang)(liang)(liang)效果及(ji)(ji)高度(du)自動(dong)化測(ce)(ce)(ce)(ce)量(liang)(liang)(liang)(liang)(liang)(liang)功能(neng)(neng)，具有精度(du)高，測(ce)(ce)(ce)(ce)量(liang)(liang)(liang)(liang)(liang)(liang)范圍寬，數據穩定(ding)，重復性好(hao)，抗(kang)干擾能(neng)(neng)力強，保(bao)護功能(neng)(neng)完(wan)善。充(chong)放電(dian)(dian)(dian)(dian)(dian)(dian)速度(du)快(kuai)等特點。該儀(yi)(yi)(yi)器(qi)。體積小、重量(liang)(liang)(liang)(liang)(liang)(liang)輕、便(bian)于(yu)攜帶。它(ta)具有測(ce)(ce)(ce)(ce)量(liang)(liang)(liang)(liang)(liang)(liang)迅速、使(shi)用(yong)方(fang)便(bian)、測(ce)(ce)(ce)(ce)量(liang)(liang)(liang)(liang)(liang)(liang)精度(du)高等特點。自檢和自動(dong)校準功能(neng)(neng)降(jiang)底(di)了(le)儀(yi)(yi)(yi)器(qi)使(shi)用(yong)和維護的難(nan)度(du)，是測(ce)(ce)(ce)(ce)量(liang)(liang)(liang)(liang)(liang)(liang)變(bian)壓器(qi)繞(rao)組以(yi)及(ji)(ji)大(da)(da)功率(lv)電(dian)(dian)(dian)(dian)(dian)(dian)感(gan)設(she)(she)備(bei)直(zhi)(zhi)流(liu)(liu)電(dian)(dian)(dian)(dian)(dian)(dian)阻(zu)的理想設(she)(she)備(bei)。本產品符合國(guo)家標準GB6587-86《電(dian)(dian)(dian)(dian)(dian)(dian)子測(ce)(ce)(ce)(ce)量(liang)(liang)(liang)(liang)(liang)(liang)儀(yi)(yi)(yi)器(qi)環境試(shi)驗總綱》及(ji)(ji)GB6593-86《電(dian)(dian)(dian)(dian)(dian)(dian)子儀(yi)(yi)(yi)器(qi)質(zhi)量(liang)(liang)(liang)(liang)(liang)(liang)檢定(ding)規則》的要求。
■ 整機由高速單片機控制，自動化程度高，操作簡便。
■ 采用全新電源技術，電流檔位多，測量范圍寬，可根據負載自動選擇電流，適合小型變壓器和電壓互感器的直流電阻測量。
■ 保護功能完善，能可靠保護反電勢對儀器的沖擊，性能更可靠。
■ 具有聲響放電報警，放電指示清晰，減少誤操作。
■ 響應速度快，可在測量狀態直接轉換有載分接開關，儀器自動刷新數據。
■ 智能化功率管理技術，儀器總是工作在zui小功率狀態，有效減輕儀器內部發熱，節約能源。
■ 儀器內置直(zhi)流供電系統(tong)，自帶(dai)充電功能，可采用(yong)(yong)交直(zhi)流兩種方(fang)式供電，便于(yu)現(xian)場使用(yong)(yong)。
■ 電流檔：輸出電流為自動、2A、1A、500mA、100mA、50mA、10mA、5mA、≤5mA。
■ 電阻檔：選擇電阻為自動、≤4Ω、≤8Ω、≤40Ω、≤400Ω、≤2kΩ、≤5kΩ、200kΩ。
■ 分辨率：0.1μΩ
■ 準確度：2‰±2個字
■ 工作溫度：0～40度
■ 工作濕度：<90%RH，不結露
■ 輸出電流：<5mA、40mA、200mA、1A、5A
■ 量程：100Ω～20kΩ （<5mA檔） 1Ω～250Ω
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