繼電(dian)(dian)(dian)保護(hu)試驗箱輸(shu)(shu)(shu)(shu)入(ru)(ru)(ru)的AC220V電(dian)(dian)(dian)源(yuan)經保險通過(guo)(guo)輸(shu)(shu)(shu)(shu)出控制繼電(dian)(dian)(dian)器(qi)K1進(jin)入(ru)(ru)(ru)雙碳刷調壓器(qi)T1輸(shu)(shu)(shu)(shu)入(ru)(ru)(ru)端(duan)，通過(guo)(guo)T1大旋鈕調節(jie)的電(dian)(dian)(dian)量進(jin)入(ru)(ru)(ru)隔離變壓器(qi)T2（升(sheng)流器(qi)），升(sheng)流器(qi)分三(san)(san)個(ge)抽(chou)(chou)(chou)頭(tou)(tou)輸(shu)(shu)(shu)(shu)出，一(yi)(yi)個(ge)抽(chou)(chou)(chou)頭(tou)(tou)為(wei)(wei)(wei)AC0-250V輸(shu)(shu)(shu)(shu)出，額定電(dian)(dian)(dian)流為(wei)(wei)(wei)3A；該(gai)(gai)抽(chou)(chou)(chou)頭(tou)(tou)輸(shu)(shu)(shu)(shu)出電(dian)(dian)(dian)壓經整(zheng)流濾波后(hou)可(ke)輸(shu)(shu)(shu)(shu)出0-350V直流電(dian)(dian)(dian)壓；第(di)二個(ge)抽(chou)(chou)(chou)為(wei)(wei)(wei)15V（10A），該(gai)(gai)抽(chou)(chou)(chou)頭(tou)(tou)一(yi)(yi)路經傳感器(qi)通過(guo)(guo)繼電(dian)(dian)(dian)器(qi)控制輸(shu)(shu)(shu)(shu)出0-10A交流電(dian)(dian)(dian)流，一(yi)(yi)路經電(dian)(dian)(dian)阻輸(shu)(shu)(shu)(shu)出0-500mA交流電(dian)(dian)(dian)流，一(yi)(yi)路經繼電(dian)(dian)(dian)器(qi)轉(zhuan)換(huan)可(ke)輸(shu)(shu)(shu)(shu)出0-10A或0-500mA直流電(dian)(dian)(dian)流；第(di)三(san)(san)個(ge)抽(chou)(chou)(chou)頭(tou)(tou)為(wei)(wei)(wei)10V（100A）大電(dian)(dian)(dian)流端(duan)，該(gai)(gai)抽(chou)(chou)(chou)頭(tou)(tou)穿過(guo)(guo)傳感器(qi)一(yi)(yi)次側直接輸(shu)(shu)(shu)(shu)出100A電(dian)(dian)(dian)流，該(gai)(gai)回路帶負(fu)載能力較強，但輸(shu)(shu)(shu)(shu)出稍有(you)過(guo)(guo)載，不(bu)能長時間(jian)處(chu)于(yu)大電(dian)(dian)(dian)流狀態下。熱繼電(dian)(dian)(dian)器(qi)校驗儀

繼電保護試驗箱輔回路
繼電(dian)(dian)保護試驗箱(xiang)輔(fu)(fu)回(hui)(hui)路與(yu)主回(hui)(hui)路一樣(yang)，AC220V電(dian)(dian)源經(jing)保險進入雙(shuang)碳刷(shua)調(diao)壓(ya)(ya)器T1小旋鈕(niu)調(diao)節(jie)的電(dian)(dian)壓(ya)(ya)量，通過(guo)隔離(li)變壓(ya)(ya)器T4可(ke)直接調(diao)節(jie)輸(shu)出0-20V或(huo)0-250V交流(liu)電(dian)(dian)壓(ya)(ya)或(huo)0-350V直流(liu)電(dian)(dian)壓(ya)(ya)，此回(hui)(hui)路額(e)定(ding)電(dian)(dian)流(liu)為1A。按下輔(fu)(fu)回(hui)(hui)路“輸(shu)出控制”開關，調(diao)節(jie)小旋鈕(niu)即可(ke)輸(shu)出。

繼電保護試驗箱測量回路
由大旋鈕(niu)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(tong)過(guo)設備內線路板上繼(ji)電器轉換(huan)，每切(qie)換(huan)一個(ge)檔，便函(han)可監視(shi)所對(dui)應的輸出量。其(qi)中“0-500mA”檔包括在“0-10A”檔中。使用時，在“0-10A”兩下即是“0-500mA”監視(shi)。