PRODUCT CLASSIFICATION
產品分類本(ben)章主(zhu)要介紹了微機繼電保護測試儀的五大(da)工作原(yuan)理(li)
繼(ji)電(dian)保護測試(shi)儀(yi)器分為主(zhu)回(hui)路(lu)(lu)(lu)和輔(fu)回(hui)路(lu)(lu)(lu)兩個回(hui)路(lu)(lu)(lu),主(zhu)回(hui)路(lu)(lu)(lu)采用(yong)大旋鈕調(diao)節(jie),輔(fu)回(hui)路(lu)(lu)(lu)采用(yong)小旋鈕調(diao)節(jie),主(zhu)回(hui)路(lu)(lu)(lu)通過(guo)面板(ban)上“輸(shu)(shu)出(chu)選擇”按鍵(jian)開關(guan)控(kong)制(zhi)其輸(shu)(shu)出(chu)的(de)(de)各種量(liang),并且每(mei)切換(huan)一種輸(shu)(shu)出(chu)的(de)(de)同時,儀(yi)器上的(de)(de)數字電(dian)壓(ya)/電(dian)流(liu)表可自動監視其輸(shu)(shu)出(chu)值(zhi)。輔(fu)回(hui)路(lu)(lu)(lu)通過(guo)輸(shu)(shu)出(chu)開關(guan)控(kong)制(zhi)直接調(diao)節(jie)輸(shu)(shu)出(chu),測量(liang)可外附萬用(yong)表測量(liang)。
1、繼(ji)(ji)電(dian)(dian)(dian)(dian)保護(hu)測試儀器(qi)(qi)主(zhu)回(hui)路原理:輸(shu)(shu)(shu)入的AC220V電(dian)(dian)(dian)(dian)源經保險通(tong)過輸(shu)(shu)(shu)出(chu)(chu)(chu)(chu)(chu)控(kong)制繼(ji)(ji)電(dian)(dian)(dian)(dian)器(qi)(qi)K1進(jin)入雙(shuang)碳刷(shua)調(diao)壓器(qi)(qi)T1輸(shu)(shu)(shu)入端(duan),通(tong)過T1大旋鈕調(diao)節的電(dian)(dian)(dian)(dian)量進(jin)入隔離變壓器(qi)(qi)T2(兼職升(sheng)(sheng)流(liu)(liu)(liu)器(qi)(qi)),升(sheng)(sheng)流(liu)(liu)(liu)器(qi)(qi)分三個抽(chou)頭輸(shu)(shu)(shu)出(chu)(chu)(chu)(chu)(chu),一個抽(chou)頭為AC0-250V輸(shu)(shu)(shu)出(chu)(chu)(chu)(chu)(chu),額定電(dian)(dian)(dian)(dian)流(liu)(liu)(liu)為3A;該(gai)抽(chou)頭輸(shu)(shu)(shu)出(chu)(chu)(chu)(chu)(chu)電(dian)(dian)(dian)(dian)壓經整流(liu)(liu)(liu)濾波后可輸(shu)(shu)(shu)出(chu)(chu)(chu)(chu)(chu)0-350V直流(liu)(liu)(liu)電(dian)(dian)(dian)(dian)壓;第(di)二(er)個抽(chou)為15V(10A),該(gai)抽(chou)頭一路經傳感(gan)器(qi)(qi)通(tong)過繼(ji)(ji)電(dian)(dian)(dian)(dian)器(qi)(qi)控(kong)制輸(shu)(shu)(shu)出(chu)(chu)(chu)(chu)(chu)0-10A交流(liu)(liu)(liu)電(dian)(dian)(dian)(dian)流(liu)(liu)(liu),一路經電(dian)(dian)(dian)(dian)阻輸(shu)(shu)(shu)出(chu)(chu)(chu)(chu)(chu)0-500mA交流(liu)(liu)(liu)電(dian)(dian)(dian)(dian)流(liu)(liu)(liu),一路經繼(ji)(ji)電(dian)(dian)(dian)(dian)器(qi)(qi)轉換可輸(shu)(shu)(shu)出(chu)(chu)(chu)(chu)(chu)0-10A或0-500mA直流(liu)(liu)(liu)電(dian)(dian)(dian)(dian)流(liu)(liu)(liu);第(di)二(er)個抽(chou)頭為10V(100A)大電(dian)(dian)(dian)(dian)流(liu)(liu)(liu)端(duan),該(gai)抽(chou)頭穿過傳感(gan)器(qi)(qi)一次側直接輸(shu)(shu)(shu)出(chu)(chu)(chu)(chu)(chu)100A電(dian)(dian)(dian)(dian)流(liu)(liu)(liu),該(gai)回(hui)路帶負載能力(li)較強,但(dan)輸(shu)(shu)(shu)出(chu)(chu)(chu)(chu)(chu)稍有(you)過載,不能長時間處于大電(dian)(dian)(dian)(dian)流(liu)(liu)(liu)狀態下(xia)。
2、繼電(dian)保(bao)護(hu)測(ce)試儀(yi)器(qi)(qi)輔(fu)回(hui)路(lu)(lu):繼電(dian)保(bao)護(hu)測(ce)試儀(yi)器(qi)(qi)輔(fu)回(hui)路(lu)(lu)與主回(hui)路(lu)(lu)一樣,AC220V電(dian)源(yuan)經保(bao)險(xian)進入雙碳刷調壓(ya)器(qi)(qi)T1小旋(xuan)鈕(niu)調節的電(dian)壓(ya)量,通過隔(ge)離(li)變壓(ya)器(qi)(qi)T4可直(zhi)接調節輸(shu)(shu)出0-20V或0-250V交(jiao)流(liu)電(dian)壓(ya)或0-350V直(zhi)流(liu)電(dian)壓(ya),此回(hui)路(lu)(lu)額定電(dian)流(liu)為1A。按下輔(fu)回(hui)路(lu)(lu)“輸(shu)(shu)出控制”開關(guan),調節小旋(xuan)鈕(niu)即可輸(shu)(shu)出。
微機繼電保護測試儀
3、繼電保護測(ce)(ce)試儀(yi)測(ce)(ce)量回路:由大旋(xuan)鈕調節的主回路輸出量交流“0-250V”、“0-500mA”、“0-10A”、“0-100A”,直流“0-350V”、“0-500mA”、“0-10A”通過設備內線路板上繼電器轉換,每切換一(yi)個檔(dang)(dang),便(bian)函可監視所對應的輸出量。其(qi)中(zhong)“0-500mA”檔(dang)(dang)包括在“0-10A”檔(dang)(dang)中(zhong)。使用時,在“0-10A”兩下是“0-500mA”監視。
4、繼電保(bao)護測試(shi)儀(yi)時間(jian)測量(liang):設(she)備內置(zhi)6位數顯(xian)秒(miao)(miao)表,電秒(miao)(miao)表可(ke)(ke)內部(bu)啟(qi)動(dong),也可(ke)(ke)外部(bu)啟(qi)動(dong)。內部(bu)啟(qi)動(dong)時,按下(xia)“輸出控制”開關,即(ji)可(ke)(ke)啟(qi)動(dong)秒(miao)(miao)表,通過(guo)接(jie)點短接(jie)設(she)備面(mian)板上(shang)停(ting)(ting)表端子即(ji)可(ke)(ke)停(ting)(ting)止秒(miao)(miao)表。秒(miao)(miao)表單獨設(she)有電源開關,不用(yong)時可(ke)(ke)將(jiang)秒(miao)(miao)表關掉。
5、繼電(dian)保護測試(shi)儀聲(sheng)(sheng)(sheng)光(guang)(guang)提示:電(dian)路設備內置聲(sheng)(sheng)(sheng)光(guang)(guang)提示電(dian)路,在被測斷電(dian)器接點動作(zuo)(zuo)時,可將接點接入試(shi)驗箱聲(sheng)(sheng)(sheng)光(guang)(guang)提示插孔,試(shi)驗箱內發(fa)出報警聲(sheng)(sheng)(sheng)或發(fa)光(guang)(guang),提示斷電(dian)器接點動作(zuo)(zuo)情況(kuang)。