工业UPS并机系统输出隔离变压器接地探究

Research on Grounding of Output Isolation Transformer of Industrial UPS Parallel System

随着电力系统的迅猛发展,UPS电源在工业控制运用中供电质量等要求变得越来越高。而UPS系统的接地方式直接影响系统的供电质量,有待制定可行的UPS接地方案,可以提高UPS供电的可靠性,也可为减少UPS故障频次,这样大大减少了设备故障带来的损失。文章对工业UPS并机系统输出隔离变压器接地进行探究,总结出适合工程应用的接地方案。

With the rapid development of the power system,the requirements for UPS power supply quality in industrial control applications have become increasingly high.The grounding method of the UPS system directly affects the power supply quality of the system.A feasible UPS grounding plan needs to be developed,which can improve the reliability of UPS power supply and reduce the frequency of UPS faults,greatly reducing the losses caused by equipment failures.This paper explores the grounding of output isolation transformer of industrial UPS parallel system,and summarizes the grounding scheme suitable for engineering application.