变电站内35kV中性点接地方式改造分析

Analysis on Transformation of 35kV Neutral Point Grounding Mode in Substation

叙述了220kV户外AIS变电站内35kV中性点接地方式改造工程的设计内容,包括工程现状、主要设备参数计算及选型、接地方式方案比选等。其中对接地装置改造的不同方案分别做了专项计算,并通过多方面的对比分析,选出本工程最优方案,进而确定该方案主要设备参数。

This paper describes the design content of 35kV neutral point grounding mode transformation project in 220kV outdoor AIS substation,including the project status,main equipment parameter calculation and selection,grounding mode scheme comparison and selection,etc.Among them,special calculation is made for different schemes of grounding device transformation,and the optimal scheme of the project is selected through comparative analysis in many aspects,and then the main equipment parameters of the scheme are determined.