DetroitStillJockey

Thanks guys, much appreciated! I'm going to get to the bottom of all this, I will report back with what I find.

We have 2 large 3-phase agitator motors and one inverter/VFD controlling the motor on our receiving tank pump. The VFD is only engaged when we are filtering or transferring out of the tank so maybe average one hour per day. Does it produce noise even when not actually on? We also have a mash pump that's 4-wire 3 phase, run that at least an hour or two a day as well. As far as the grounding goes, I'm not even sure where to begin checking it all. I'm thinking the agitator motors are a likely culprit since they run 20 hours a day. We also have a hydrovane compressor that runs often, we are in an ancient neighborhood in Detroit in a 110 year old building... I've got my work cut out for me chasing this down I think. The main symptoms are manifesting in the boiler and in our labeler. The labeler NEVER works correctly. We have changed multiple parts at the manufacturer's instruction to no avail. Just ripped it apart and sent the whole labeling arm/servo back to them for testing/repair. The boiler has fried multiple control boards. We have lost temp control units on all of our bar coolers, we lost a bay door opener to a fried board... the list goes on. What do you think the chances are of it being my equipment producing the interference versus inadequate power quality at the main? Also, on the grounding topic.. has anyone ever researched the effects of a giant copper tank filled with swirling liquid on your power grid? I almost feel like just grounding the still itself might not be a terrible idea. Also to my knowledge there are no line reactors in place upstream of any of this equipment.

Hey guys, hoping someone can help me out here. We have been experiencing lots of "Gremlins" or 'Electrical demons" unexplained equipment malfunctions, ect. I think I have determined that we are suffering from Line Side Harmonic Distortion within our electrical system. Has anyone ever experienced this? What steps did you take to correct it?