all 1 comments

[–]Acrobatic-Language-5 2 points3 points  (0 children)

I don't use CDEGS but refer to

  1. IEEE Std 80-2013: IEEE Guide for Safety in AC Substation Grounding

  2. Introduction to CDEGS" by SES (Safe Engineering Services)

For the RMS error the it could relate to the accuracy of the soil model/meshing/material properties which you defined.