I was at a friends new tanning salon, and came across a strange voltage issue. I tested his outlets and found 2 plugs that read 140 volts, there was an original panel from shell and core, however because it's a tanning salon the original owner added 2 new panels in the space for the tanning beds which operate at 240 volts. Both panels are fed from individual 75kva transformer (208primary 240 secondary) the panel feeding the plug in the hall @140 volts is from the 240 secondary side of the transformer...note it is the third leg feeding these outlets at high voltage. What can cause this? I didn't test the lugs to see voltage inside panel because of time restraints.
Thanks,
H20
