A.固化定值,否則更換CPU插件B.切換定值區(qū)C.進(jìn)行一次軟壓板投退D.進(jìn)入出廠調(diào)試菜單進(jìn)行設(shè)置
A.相當(dāng)于直流接地B.直流母線對(duì)地電壓升高C.源構(gòu)成交流對(duì)地通道形成大電流D.接地信號(hào)變壓器燒毀
A.3B.5C.10D.30