一(yi)、概(gai)述
SG6820A氧化鋅(xin)避(bi)雷器(qi)帶(dai)電(dian)(dian)測試儀(無(wu)線)是(shi)用于檢測氧化鋅(xin)避(bi)雷器(qi)電(dian)(dian)氣性能的(de)專用儀器(qi),該(gai)儀器(qi)適用于各種(zhong)電(dian)(dian)壓(ya)等級的(de)氧化鋅(xin)避(bi)雷器(qi)的(de)帶(dai)電(dian)(dian)或(huo)停電(dian)(dian)檢測,從而(er)及(ji)時(shi)發現設備內部絕緣(yuan)受潮及(ji)閥片老化等危險缺陷。
SG6820A氧(yang)(yang)(yang)化(hua)(hua)鋅避(bi)雷(lei)器(qi)帶電(dian)(dian)(dian)測(ce)試(shi)儀(yi)(yi)(無線(xian)(xian))操作(zuo)簡單、使用(yong)方便(bian),測(ce)量(liang)(liang)全過程(cheng)由單片機控(kong)制(zhi),可測(ce)量(liang)(liang)氧(yang)(yang)(yang)化(hua)(hua)鋅避(bi)雷(lei)器(qi)的(de)(de)全電(dian)(dian)(dian)流、阻(zu)性電(dian)(dian)(dian)流及(ji)其諧(xie)(xie)波(bo)(bo)、工頻(pin)參考電(dian)(dian)(dian)壓及(ji)其諧(xie)(xie)波(bo)(bo)、有功(gong)功(gong)率和(he)相位差,大(da)屏幕可顯示電(dian)(dian)(dian)壓和(he)電(dian)(dian)(dian)流的(de)(de)真實波(bo)(bo)形。SG6820A氧(yang)(yang)(yang)化(hua)(hua)鋅避(bi)雷(lei)器(qi)帶電(dian)(dian)(dian)測(ce)試(shi)儀(yi)(yi)(無線(xian)(xian))運用(yong)數字(zi)波(bo)(bo)形分(fen)析技術,采(cai)(cai)用(yong)諧(xie)(xie)波(bo)(bo)分(fen)析和(he)數字(zi)濾波(bo)(bo)等(deng)軟件抗(kang)干擾(rao)方法使測(ce)量(liang)(liang)結(jie)果準確(que)、穩(wen)定,可準確(que)分(fen)析出(chu)基波(bo)(bo)和(he)3~7次諧(xie)(xie)波(bo)(bo)的(de)(de)含量(liang)(liang),并能(neng)克服相間干擾(rao)影響,正(zheng)確(que)測(ce)量(liang)(liang)邊相避(bi)雷(lei)器(qi)的(de)(de)阻(zu)性電(dian)(dian)(dian)流。SG6820A氧(yang)(yang)(yang)化(hua)(hua)鋅避(bi)雷(lei)器(qi)帶電(dian)(dian)(dian)測(ce)試(shi)儀(yi)(yi)(無線(xian)(xian))配有高(gao)速面板式打印機,可充(chong)電(dian)(dian)(dian)電(dian)(dian)(dian)池(chi),試(shi)驗人員在現場使用(yong)十分(fen)方便(bian)。SG6820A氧(yang)(yang)(yang)化(hua)(hua)鋅避(bi)雷(lei)器(qi)帶電(dian)(dian)(dian)測(ce)試(shi)儀(yi)(yi)(無線(xian)(xian))采(cai)(cai)用(yong)獨特的(de)(de)高(gao)速磁隔離數字(zi)傳感器(qi)直接(jie)采(cai)(cai)集(ji)輸入(ru)的(de)(de)電(dian)(dian)(dian)壓、電(dian)(dian)(dian)流信號,保證了(le)數據(ju)的(de)(de)可靠性和(he)**性。
二、儀器特點(dian)
主要技術(shu)參數
全電流測量范圍:0~10mA有效(xiao)值
準(zhun)確度:±(讀數(shu)×5%+5uA)
阻性電流(liu)基(ji)波(bo)測量準確(que)度(有線不含(han)相(xiang)間干擾):±(讀數×5%+5uA)
電(dian)流諧波測量準確度:±(讀(du)數(shu)×10%+10uA)
電流通(tong)道(dao)輸入電阻(zu):≤2Ω
參考(kao)電(dian)壓輸入范(fan)圍:25V~250V有效(xiao)值
準(zhun)確度(du):±(讀(du)數(shu)×5%+0.5V)
電壓諧波測量準確度:±(讀數×10%)
參考電(dian)壓通道(dao)輸入電(dian)阻(zu):≥1800kΩ
電池連(lian)續工作(zuo)時(shi)間:8小時(shi)以上
電池充電時間(jian):6小時以上
交流充電:AC 220V ±10%,50Hz ±1%
儀(yi)器重(zhong)量:5kg(不含電纜(lan)箱)
儀器(qi)尺寸(cun):34cm×22cm×20cm