Sorry for not replying until know. I am looking into this because phase converters are notorious for have a power factor of about 0.2 so I was looking into a way to measure this easily to since the amperage draw with it idling is can be upwards of near the full load motor amps. So far, the easiest thing to do is add capacitance across the L1 & L2 and that has great reduced the Line amps. The high amps on the Lines reduces the available amps on the other side of the converter for the machinery to run on.
Thanks,
Roger
