一、概述(shu)

200A回路/300A回路電阻測試儀定制

以前(qian)，電(dian)(dian)(dian)(dian)力(li)系統(tong)中普遍采(cai)用常規(gui)(gui)的(de)(de)QJ44型雙臂直(zhi)流(liu)(liu)電(dian)(dian)(dian)(dian)橋測(ce)(ce)量(liang)(liang)變(bian)壓(ya)(ya)器(qi)線(xian)(xian)圈的(de)(de)直(zhi)流(liu)(liu)電(dian)(dian)(dian)(dian)阻、高(gao)壓(ya)(ya)斷(duan)路(lu)(lu)器(qi)的(de)(de)接觸(chu)電(dian)(dian)(dian)(dian)阻，而這(zhe)類電(dian)(dian)(dian)(dian)橋的(de)(de)測(ce)(ce)試電(dian)(dian)(dian)(dian)流(liu)(liu)僅為mA，難以發現變(bian)壓(ya)(ya)器(qi)線(xian)(xian)圈導(dao)(dao)電(dian)(dian)(dian)(dian)回(hui)路(lu)(lu)導(dao)(dao)體截(jie)面積減少(shao)的(de)(de)缺陷。在(zai)測(ce)(ce)量(liang)(liang)高(gao)壓(ya)(ya)開(kai)關導(dao)(dao)電(dian)(dian)(dian)(dian)回(hui)路(lu)(lu)接觸(chu)電(dian)(dian)(dian)(dian)阻時，由于(yu)受到油(you)膜(mo)和動靜觸(chu)頭間氧化層(ceng)的(de)(de)影響(xiang)，測(ce)(ce)量(liang)(liang)偏(pian)差大，掩蓋了真實的(de)(de)接觸(chu)電(dian)(dian)(dian)(dian)阻值。因此，電(dian)(dian)(dian)(dian)力(li)部標準SD301-88《交流(liu)(liu)500KV電(dian)(dian)(dian)(dian)氣設備(bei)(bei)交接和預(yu)防試驗規(gui)(gui)程(cheng)》和新版《電(dian)(dian)(dian)(dian)氣設備(bei)(bei)預(yu)防性試驗規(gui)(gui)程(cheng)》對斷(duan)路(lu)(lu)器(qi)、隔離開(kai)關接觸(chu)電(dian)(dian)(dian)(dian)阻的(de)(de)測(ce)(ce)量(liang)(liang)電(dian)(dian)(dian)(dian)流(liu)(liu)作(zuo)出(chu)不小(xiao)于(yu)直(zhi)流(liu)(liu)100A的(de)(de)規(gui)(gui)定，以保證(zheng)準確度。

本回(hui)(hui)路電(dian)(dian)阻測(ce)試(shi)儀采用(yong)(yong)微(wei)型單片機(ji)控制(zhi)，人性化漢(han)字界(jie)面顯示，它是(shi)用(yong)(yong)于開關控制(zhi)設(she)備的(de)接觸電(dian)(dian)阻、回(hui)(hui)路電(dian)(dian)阻測(ce)量(liang)的(de)專(zhuan)用(yong)(yong)設(she)備；其測(ce)試(shi)電(dian)(dian)流采用(yong)(yong)國家標準(zhun)GB763推(tui)薦(jian)的(de)100A/200A/300A/600A直流，可在100A/200A/300/600A電(dian)(dian)流（測(ce)試(shi)選(xuan)擇擋位）的(de)情況下(xia)直接測(ce)得回(hui)(hui)路電(dian)(dian)阻或者(zhe)接觸電(dian)(dian)阻，測(ce)試(shi)時間(jian)設(she)置!!!, 測試(shi)(shi)(shi)大(da)電(dian)流斷線自動識別!!!采用液晶顯示測試(shi)(shi)(shi)電(dian)流值及測試(shi)(shi)(shi)電(dian)阻值，可以打印輸出(chu)，具有232接口。該儀(yi)器測量準(zhun)確、性能穩定(ding)，操作方便。適(shi)合電(dian)力、供電(dian)部門現場高壓開(kai)關維修和高壓開(kai)關廠回路電(dian)阻測試(shi)(shi)(shi)的要求。

產品參(can)數：

測(ce)量范圍：0-1999μΩ 分(fen)辨(bian)率：1μΩ

測量電流：100A-300A DC

測量精度(du)：0.5級

顯示方式(shi)：液晶顯示、結果打印(yin)

工(gong)作溫度(du)：-10℃~50℃

工作電流：AC220V±10%

體   積：445×285×230

重   量：7.2Kg

200A回路/300A回路電阻測試儀定制

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