变电所变压器0.4 kV侧中性点接地有关问题分析

摘要

对变电所变压器0.4 kV侧中性点的接地方式进行分析，提出防止在保护接地线（PE）中产生杂散电流的几种接地方式，避免建筑物内部共用接地系统时，对电子与信息设备及系统产生干扰。%This paper analyzes 0. 4 kV side neutral point earthing method of transformer in substation and puts forward several earthing methods to avoid stray current in protective earthing conductor (PE) so that interference on electronic and information equipment and system can be prevented when earthing system is shared inside buildings.