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larry g
 
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Default VFD / Rotary phase converter question

I have been using a balanced rotary phase converter in the shop now for a
coupla years with no problems. Now I have acquired a couple of VFD drives.
One of the drives is rated for 220V single or 3-phase. Should I use these
drives fed from the single phase, or should I put them on the 3-phase side
of the RPC? I'm leaning toward using them downstream of the RPC so that the
VFD's are not derated. Is there any electrical reason not feed them from
the RPC?
Thanks
lg
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