Kevin lives in a rural area near Canton GA. He has a main breaker box in his house with a 125A main breaker that connects to his garage (150’ away) with underground 1/0 cable. The garage has a breaker box for the branch circuits there. Before the cold over Christmas and the flood, everything was working fine. After the flood he has low voltage (63 volts) instead of ~125.
At the main house breaker box, I get 121V on between each phase wire and the neutral on the 125A double breaker, and 240V between the 2 phase wires. HOWEVER, at the garage, I get 60 volts between each phase and the neutral or ground! I get NO VOLTS between the two phase wires!!!
Note that I am testing the garage at the incoming wire before it gets to the breaker feeding the rest of the garage. So this isolates the issue to just the wire and not anything else in the garage.
So there are some STRANGE things to note. First, the voltage is half at the garage than at the main breaker. Second, there is no voltage between the phases (.02xx volts) at the garage. Third, the is SOME continuity between the 2 phase wires (1200 on my resistance) when it should be 0 (after I turned off power).
We moved the main house breaker to another slot in the box just to see if anything was different, but it made no difference to anything.
Any suggestions would be appreciated.
At the main house breaker box, I get 121V on between each phase wire and the neutral on the 125A double breaker, and 240V between the 2 phase wires. HOWEVER, at the garage, I get 60 volts between each phase and the neutral or ground! I get NO VOLTS between the two phase wires!!!
Note that I am testing the garage at the incoming wire before it gets to the breaker feeding the rest of the garage. So this isolates the issue to just the wire and not anything else in the garage.
So there are some STRANGE things to note. First, the voltage is half at the garage than at the main breaker. Second, there is no voltage between the phases (.02xx volts) at the garage. Third, the is SOME continuity between the 2 phase wires (1200 on my resistance) when it should be 0 (after I turned off power).
We moved the main house breaker to another slot in the box just to see if anything was different, but it made no difference to anything.
Any suggestions would be appreciated.
