I just noticed this today. I was running some water when I walked in
the barn. All of a sudden the barn lights went brown for a split
second, like there was a very heavy draw on the power.
I dont have any other heavy loads on my electrical service.
At first I thought it was either a power company surge, or the switch
for my barn lights was getting bad. Minutes later, I am still running
water when I walk in the garage and turn on the lights. Same thing
happens. That eliminates the switch. Still the possibility the power
company was having problems. However, I am wondering if this could be
something with the well pump. It's a 220V submercible. Never had
problems with it, but it's getting old. Yet, the water continued to
flow as it should.
The control box for the well is in the garage. It has a large
capacitor in it. I am wondering if that capacitor could be starting
to fail, and made a split second short circuit? Is that possible?
Of course I considered a wire that could be fraying inside the well
casing and shorting as the pump kicks in or out, the pump itself going
bad, or maybe it has nothing to do with the well at all, and there is
a wiring problem somewhere. However, this is a farm with multiple
overhead triplex feeds to different buildings. Since I noted the
problem in different buildings (on different overhead feeds), it seems
that if it's not the well, then there is a problem in my main panel,
or one of those overhead wires is momentarily arcing to a tree branch
or inside itself.
Today I will check for branches and any other noticable overhead wire
issues that I can see. Hopefully it was just the power company. It
has not happened since. I have used water, but not running it
constantly like I was when that occurred.
Anyone got any suggestions?
Could a failing pump capacitor do that?