UPS输出端中性线接地问题探讨

摘要

从UPS工作原理入手，分析单相UPS和三相UPS “另起的系统”的接地问题，结论： UPS输出端的中性线做重复接地的规定有误。%The paper analyzes the grounding of“separately derived system” by single-phase UPS and three-phase UPS and then concludes that it is wrong for neutral conductor iterative grounding at UPS output end.