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John,
Check out eBay for a current transformer. A 50:5 unit will multiply
your DMM readings by factor of 10. They should be available for under
$20 with some diligent looking.
Just be careful to never put current through the transformer (CT)
without having a load, like your DMM on its amperes setting, across the
CT terminals. When unloaded, a CT tries to put out infinite voltage
which may break down its internal windings.
Then, you can investigate which arrangement of PFC caps works best for you.
Dave
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I'm at the point I need to add some motor run caps, I'm thinking the
same that go on your ac units in the 40-50uf 330-440v variety unless
someone has a better suggestion. Looks like I will need around 150uf
per transformer I have 3 12/60 NST. Biggest question is do I run all 9
parallel or run about 3 strings of 3 to each? Would before or after the
EMI filters make a difference. Blowing 20 amp fuses on variac, don't
have a clamp meter and my dmm is only good to 10 amps inline. I was
going to add some and then start measuring the current? John Cooper