Hi all, I am here struggling with power quality issues in a rural (not remote) town in Minnesota, we are near the end of the line for power distribution with Ottertail 120/240 2-phase service (appears to be two wire 10k volt setup).
The utility has replaced all connections from the transformer to our power mast, inside our panel and service feed was replaced (for upgrades, unrelated to issue) and quality hasn’t improved completely.
Original issue we had before we starting monitoring the power quality was dimming/flickering of lights usually during peak times in hot temperatures, our utility feels the issue was caused by increased usage during our hot spring & summer but since 6pm Monday Sept 7th our air conditioner has been off completely due to cooler weather and the power quality is still questionable.
All power connections are tight in the house and at the power panel (unknown about meter box/panel).
Our Utility claims they installed main line power regulators in our town to alleviate any power dips or spikes, I have a suspicion they might be defective aside from heavy loads from the Substation to us (lots of farms and animal barns).
Do you folks have any input or advice on what we are seeing on our power quality graphs?