Joe, one thing that is confusing is that when you first reported this issue in June, you measured:
"With leg A I get 20A leg B 15A and leg C 19A...?also I have two other 3 phase machines that run and the
currents measure the same on all three legs for those machines"
So this is no longer true?? (would be an extraordinary coincidence)
I want to be 100% sure I understand your measurements.? Can you look at the attached diagram, and confirm that with no other loads (shut off pool, A/C etc) the following is true:
1) With any of the three motors running, you measure ~20% low current on one leg.? Let's call the low leg L2 (for a 3P load, it doesn't make any difference whether the low leg the is wild leg or not, so it doesn't matter which leg you call L1 or L2 of L3, it only matters that we're consistent)
2) If you swap L1 and L2 leads to any motor, the low current follows.? For example, if you swap? L1 and L2 on each motor, the the current meter readings will be:
L3: N amps
L2: N amps
L1: 0.8N amps
If this is all true, then you have proven that there is a utility problem.??
