After a large storm here in Michigan I began experiencing a problem in our barn's electrical system. Now all of the circuits were functioning fine up until this storm hit and I have checked everything I can possibly think of to try to repair the problem.
First,... a little description of the problem. When you turn on the lights in the tack room the bulb does light but it's on the dim side (60 watt bulb). Now with that light left on in the tack room,.. if I turn the lights on in my shop which is the room right next door the bulb in the tack room gets brighter (like a 100 watt bulb in brightness) Both of these circuits are on different breakers in the box. When I go to use any of the power tools in my shop there isn't enough amps/volts to drive the motors. IE chop saw, compressor, bench grinder. The power to the main breaker box in the barn is fed by the main box on the utility pole where the meter is mounted. the power is fed through a 100 amp breaker which supplies 2 seperate circuits to the breaker box in the barn, each is 120v ( I replaced this breaker to make sure it wasn't the problem and it made no difference in my barn problem) Now when I check my incoming voltages at both receiving legs in the barn breaker box I read 105 volts on the left leg and 135 volts on the right one. I have physically disconnected all of the circuits in the barns breaker box from all of the leg connections and tried each one seperatly to see if there was a problem in a individual circuit. None of the individual circuits have any change in the symptoms I have related to earlier by doing this. I have checked the grounds and neutrals in each circuit and can't find any problems in any of the individual barn lines. If I leave the power on in the barn for the tack room light & shop light so they are lit,.. the power for the lights within the barn area (stalls and such) will function (florescent fixtures) but if I turn off either of the other 2 lights (tack room or shop) the barn lights will go out also and come back on if I turn the tack light on or the shop light on depending on which one I had shut off originally.
Now remember,... EACH of these circuits are on their own circuit breaker and none are interconnected anywhere in the system with the exception of the MAIN power source to all of them. Quite frankly I AM Stumped!!
Is there ANYONE out there that could high-light me as to what the problem could be and what could be done to fix it???
ANY suggestions would be GREATLY apperciated !!!!!!!!!!!!!!!!!!!!!!!!!!!