Currently have two machines down. Both are rated for 208. Both are down due to the same issue (voltage drop). I checked voltage at the incoming source to each machine and i get two phases at 208vac and the third at 173vac. What can cause that voltage drop? I checked the power source feeding the bus bar and i have 208 across all three phases, but as soon as i check voltage at the bus boxes i get that 173vac at one of the phases.
Can that 173 cause the three phase induction (208vac) to single phase? What is causing the voltage drop to that one phase to drop to 173vac? Voltage to from the switch gear, into the bus bar is good at 208vac across all three phases. I lose voltage at one of the phases as power distributes throughout the bus bar.
Can that 173 cause the three phase induction (208vac) to single phase? What is causing the voltage drop to that one phase to drop to 173vac? Voltage to from the switch gear, into the bus bar is good at 208vac across all three phases. I lose voltage at one of the phases as power distributes throughout the bus bar.
