Effects of the changes in IEEE std. 80 on the design and analysis of power system grounding

This paper discusses the major changes in the 2000 version of IEEE Guide for Safety in AC Substation Grounding (Standard 80-2000) with respect to the 1986 version (Standard 80-1986), which-affect the grounding design and analysis. Comparisons are made for the portions in the two versions of the guide where major changes occur. Examples have been presented to show the effects of the changes on the design and analysis of power system grounding.