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Testing Revisited
Sometimes it's embarrassing how focused I get.
... 'I need charged batteries to test' ...
until my wife asks me why I don't just 'plug in' the VFD. It's 208V, and that's 'close enough' to 240V isn't is?
Yes Dear, it is in fact WHY (some time ago) I CHOSE to use 208V for the test VFD. I had forgotten about that. I guess the charging of the batteries at all was a diversion from the goal of testing the 5 HP motor with my newer (well, newer to me) Square D VFD.
33A max output from the VFD, at an estimated output voltage of 50V, with a few factors thrown in and an unknown efficiency is still well under the 30A at 240V single phase rating for the diodes on the input section of the VFD. I likely don't need much more than 2000 watts, maybe 10 amps at 220V.
So I can forget about the batteries again (for a while)
and the charging problems
and the DC to AC inverter soldering
and focus on
1 - take apart a motor and see if the coils are easy to separate
2 - build my test frame again to check the stall torque of the 5 HP motor (likely one that I don't take apart)
A BIG THANK YOU to my lovely wife for the tip. And I always thought she was just smiling and nodding when I talked about my projects ...
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