I was measuring my vacuum pumps amp draw so that i could get an appropriate thermal overload for it when I came across a surprise. I measured the three legs and 1 was 23 amps, 2nd was 17 amps and 3rd was 8 amps. That cant be good for the motor i'm thinking. I use to run the whole shop on this 20 hp converter and the voltages were always very close. Would this be a motor issue on the vacuum pump? I also measured the single phase amperage going to the phase converter when under no load....it was at 32 amps both legs...isnt that excessive for no load. Under load it was 54 and 53 with vacuum pump on. Is something up or should I just keep running the equipment?