I am having some voltage drop issues at my house. Problem HAS been traced to the service and not in the house. PC was just out to swap out a service feeder that was 6 and 4ga to all 2ga but that did not change a thing and I was pretty surprised.
I was told that if we go any further, they want to install a meter monitor for a week to look at the issues. I have done plenty of testing and at 75A draw, I can get both legs below 10% or 108V. With a 100A inrush, I can pull it below 100V for 1-2sec. I realize inrush is a hard player so I am working with constant loading to prove my point.
At 100A draw, it is really struggling around 107-108V which is right on the edge. As I told them, if my constant draw is up and I try to start any motor, I have all sorts of problems and it is just getting worse. They are feeding 7 houses on a 50kva transformer and I am at the end of the run.
Where do power companies draw the line to upgrade a transformer, etc? I would really like to make sure this is an isolated issue and not something everyone experiences. I have never seen it this bad but I usually do not do this much testing.
At a modest 30A load, I am down 8-9V.