Yes, we checked with several different meters and we checked in various positions. We also check with a single meter on all three cables and the results are the same.I notice you have three different mfg meters. Did you happen to rotate them to check if they all read approximately the same?
Also put the clamp meter around any cable or conduit attached to the service meter enclosure and check if there's any current present.I suggest putting your clamp meter around any Romex cable, conduit, or grounding electrode conductor that exits the breaker panel, to the extent there are clearances to do so. Somewhere there has to be a return conductor for the stray current that's flowing on the service neutral.
SWER demonstrates the earth can reliably conduct utility power at transmission or medium-voltage levels. The right soil formations may also conduct 120v for short distances... removed the meter to kill power completely and we were still seeing 1-3 amps on the neutral.
I would have my main turned off, check the neutral current and if it is there, ask the neighbor if I can turn their main off and check the neutral current at your house again. If it goes away, your neighbor's neutral from the PoCo may be compromised. Even the PoCo guys would have to admit this.You guys are all very wise and I appreciate your comments. You have given me several ideas on ways to troubleshoot this. Is there any additional information I can provide that might help?
If there is a problem with the neutral then line to neutral voltages should unbalance as the current unbalances. I could be wrong but I think OP has stable voltages just stray neutral current that he hasn't figured out where it is coming from.I haven't seen this added:
Please verify the Neutral can carry the unbalanced load. Get one of L1 or L2 to at least 10 amps or more; such as running a microwave. then test the current on each L1, L2 and N. The N should be exactly the difference between L1 and L2. Ex: L1 10A - L2 5A = 5A. I have seen the N be 1 A off and found that the PoCo terminations was corroded. Also similar situation with customer having to replace circuit boards in appliances, we were able to access the service laterals at the PoCo and with the main off found the N measured .9A current at the PoCo . The lateral was in conduit so after we replaced lateral we cut the neutral and found corrosion throughout.
Kind of my thought too, if by some means the neutral/ground goes to his panel, if the pressure tank is in the house.Remove the power from the well and retest.
Not saying one should completely ignore it, but submersible wells are almost always 240 volts and don't utilize the neutral, shallow well jet pumps or even similar used as pressure booster can be 120 but majority of those also are usually 240 volts.Kind of my thought too, if by some means the neutral/ground goes to his panel, if the pressure tank is in the house.
It would also be helpful if we knew at what point this all started, what were the conditions around it at that time.
“ shoot low boys their riding shetland ponies”
120 watts on the neutral when no power is applied what so ever, can you pull the meter to see if that 1 amp goes away, maybe there is leakage somewhere on the line side of the meter ... either way I'd have a lot of fun trying all the tricks of troubleshooting I learned from the past, you certainly need to tell us what the culprit is when discovered.When turning off the power to the house, the neutral current drops to 1 amp.