繼電保(bao)護(hu)測(ce)試(shi)儀分為(wei)主回(hui)(hui)路(lu)和輔回(hui)(hui)路(lu)兩(liang)個(ge)回(hui)(hui)路(lu)，主回(hui)(hui)路(lu)采用(yong)大旋鈕(niu)調節，輔回(hui)(hui)路(lu)采用(yong)小(xiao)旋鈕(niu)調節，主回(hui)(hui)路(lu)通過面(mian)板上(shang)“輸(shu)出選(xuan)擇"按鍵開關控(kong)制(zhi)其(qi)輸(shu)出的(de)各種(zhong)量，并且每切換一種(zhong)輸(shu)出的(de)同時，儀器上(shang)的(de)數字電壓/電流表(biao)可自動監視其(qi)輸(shu)出值。輔回(hui)(hui)路(lu)通過輸(shu)出開關控(kong)制(zhi)直接調節輸(shu)出，測(ce)量可外附萬用(yong)表(biao)測(ce)量。
主回路原理
輸(shu)入的AC220V電(dian)(dian)(dian)(dian)(dian)源經保險通過輸(shu)出(chu)控制繼電(dian)(dian)(dian)(dian)(dian)器(qi)K1進(jin)入雙碳刷調壓器(qi)T1輸(shu)入端，通過T1大(da)旋鈕調節的電(dian)(dian)(dian)(dian)(dian)量進(jin)入隔離變壓器(qi)T2（兼職升流(liu)(liu)器(qi)），升流(liu)(liu)器(qi)分三(san)個抽(chou)頭輸(shu)出(chu)，一(yi)(yi)(yi)個抽(chou)頭為(wei)(wei)AC0-250V輸(shu)出(chu)，額(e)定電(dian)(dian)(dian)(dian)(dian)流(liu)(liu)為(wei)(wei)3A；該抽(chou)頭輸(shu)出(chu)電(dian)(dian)(dian)(dian)(dian)壓經整(zheng)流(liu)(liu)濾波后可輸(shu)出(chu)0-350V直流(liu)(liu)電(dian)(dian)(dian)(dian)(dian)壓；第二(er)個抽(chou)為(wei)(wei)15V（10A），該抽(chou)頭一(yi)(yi)(yi)路經傳感器(qi)通過繼電(dian)(dian)(dian)(dian)(dian)器(qi)控制輸(shu)出(chu)0-10A交(jiao)流(liu)(liu)電(dian)(dian)(dian)(dian)(dian)流(liu)(liu)，一(yi)(yi)(yi)路經電(dian)(dian)(dian)(dian)(dian)阻(zu)輸(shu)出(chu)0-500mA交(jiao)流(liu)(liu)電(dian)(dian)(dian)(dian)(dian)流(liu)(liu)，一(yi)(yi)(yi)路經繼電(dian)(dian)(dian)(dian)(dian)器(qi)轉換可輸(shu)出(chu)0-10A或0-500mA直流(liu)(liu)電(dian)(dian)(dian)(dian)(dian)流(liu)(liu)；第三(san)個抽(chou)頭為(wei)(wei)10V（100A）大(da)電(dian)(dian)(dian)(dian)(dian)流(liu)(liu)端，該抽(chou)頭穿(chuan)過傳感器(qi)一(yi)(yi)(yi)次側直接輸(shu)出(chu)100A電(dian)(dian)(dian)(dian)(dian)流(liu)(liu)，該回路帶(dai)負載能(neng)力(li)較 強，但輸(shu)出(chu)稍有(you)過載，不(bu)能(neng)長時間處于大(da)電(dian)(dian)(dian)(dian)(dian)流(liu)(liu)狀態下。熱(re)繼電(dian)(dian)(dian)(dian)(dian)器(qi)校(xiao)驗(yan)儀
繼電保護測試儀輔回路
繼電(dian)(dian)保護測(ce)試儀器輔(fu)(fu)回路與主回路一樣(yang)，AC220V電(dian)(dian)源經保險進入雙碳刷調壓(ya)(ya)器T1小(xiao)(xiao)旋鈕調節(jie)的電(dian)(dian)壓(ya)(ya)量，通(tong)過隔離變壓(ya)(ya)器T4可(ke)直接調節(jie)輸(shu)出(chu)0-20V或0-250V交流電(dian)(dian)壓(ya)(ya)或0-350V直流電(dian)(dian)壓(ya)(ya)，此(ci)回路額定電(dian)(dian)流為1A。按下輔(fu)(fu)回路“輸(shu)出(chu)控制"開關，調節(jie)小(xiao)(xiao)旋鈕即可(ke)輸(shu)出(chu)。
測量(liang)回路
由大旋鈕調節的主(zhu)回路輸出量交流“0-250V"、“0-500mA"、“0-10A"、“0-100A"，直流“0-350V"、“0-500mA"、“0-10A"通(tong)過設(she)備內線路板上(shang)繼電器(qi)轉(zhuan)換(huan)，每(mei)切(qie)換(huan)一(yi)個檔(dang)，便函可監視所對應的輸出量。其中“0-500mA"檔(dang)包括在(zai)(zai)“0-10A"檔(dang)中。使用(yong)時，在(zai)(zai)“0-10A"兩(liang)下即是“0-500mA"監視。
時(shi)間測量
設(she)備內置(zhi)6位數顯秒表(biao)(biao)(biao)，電秒表(biao)(biao)(biao)可(ke)內部啟(qi)動，也可(ke)外部啟(qi)動。內部啟(qi)動時，按下“輸出控制"開(kai)關(guan)，即(ji)可(ke)啟(qi)動秒表(biao)(biao)(biao)，通過接點(dian)短(duan)接設(she)備面板上停(ting)表(biao)(biao)(biao)端子即(ji)可(ke)停(ting)止秒表(biao)(biao)(biao)。秒表(biao)(biao)(biao)單獨(du)設(she)有電源(yuan)開(kai)關(guan)，不用時可(ke)將秒表(biao)(biao)(biao)關(guan)掉(diao)。
聲(sheng)光(guang)提(ti)示
電(dian)路(lu)設備內置聲(sheng)光提示(shi)電(dian)路(lu)，在被測(ce)斷電(dian)器(qi)接點動(dong)作時，可將接點接入試驗(yan)箱聲(sheng)光提示(shi)插孔，試驗(yan)箱內發出(chu)報警聲(sheng)或發光，提示(shi)斷電(dian)器(qi)接點動(dong)作情況。
繼(ji)電(dian)保(bao)(bao)護測(ce)試(shi)(shi)(shi)(shi)儀(yi)又叫：三相(xiang)繼(ji)電(dian)保(bao)(bao)護測(ce)試(shi)(shi)(shi)(shi)儀(yi)、三相(xiang)微(wei)機繼(ji)電(dian)保(bao)(bao)護測(ce)試(shi)(shi)(shi)(shi)儀(yi)、六(liu)相(xiang)繼(ji)電(dian)保(bao)(bao)護測(ce)試(shi)(shi)(shi)(shi)儀(yi)、六(liu)相(xiang)微(wei)機繼(ji)電(dian)保(bao)(bao)護測(ce)試(shi)(shi)(shi)(shi)儀(yi)、微(wei)機繼(ji)電(dian)保(bao)(bao)護測(ce)試(shi)(shi)(shi)(shi)儀(yi)、繼(ji)保(bao)(bao)儀(yi)
