自主创新技术是中国近几年在工业领域全力支持和推动,作为核心竞争的有力因素,技术创新成为当下企业最看重和努力的一大工作内容。而今日,南瑞继保研发的直流电子式互感器产品在中国500 kV电网输电线路上的使用,更是表明了中国在战略上的胜利,大力推进国产化成效显著,摆脱了对国外的依赖。 Independent innovation technology is China’s full support and promotion in the field of industry in recent years. As a powerful factor in core competition, technological innovation has become the most important and most important task for the current enterprises. Today, the use of DC electronic transformer products developed by NARI following the 500 kV power transmission line in China further demonstrates China’s strategic victory. It has made remarkable efforts to promote localization and got rid of its dependence on foreign countries .