Elaboroting several common breakdowns of PGMG11-100AH/220V high frequency entire auto matically exempts the maintenance continuons-current plant and the methods of removing them.

• 阐述了PGMG11-100AH/220V型高频全自动免维护直流电源装置的几点常见故障及排除方法,为变电所安全运行发挥了作用,确保了煤矿安全生产。