Installing centralizer is a practicable measure for the problem of controlling eceentric wear of sucker rods in highly d......

三电平变换器由于具有开关管应力小，母线承受电压高，广泛应用于中压大功率场合，包括电动汽车大功率充电，无功补偿，机车中压牵引系统等。......

阐述了电压互感器产生铁磁谐振的现象、原理及条件、对天生桥二级电站500kV变压器低压侧电压互感器产生铁磁谐振现象进行了详细分......