[MRCG] Variable Frequency Motor Drive for 400Hz/800Hz Radio Power

[Mark J. Blair]

> On Dec 18, 2019, at 4:58 PM, Scott Johnson <scottjohnson1 at cox.net> wrote:
> 
> Mark-
> Not necessarily true on all VFDs.  I have successfully set up TECO and
> Automation Direct VFDs to run as inverters by fixing parameters voltage and
> frequency in the setup., and I have run bot ARC-58s and 618Ts from these
> VFDs.  The big caveat is that you will need to run either a delta to wye
> transformer or wye autotransformer to derive the neutral.

Interesting! Do I guess correctly that the VFD doesn't have a neutral output leg, but the 618T-2 needs one for the single phase 115VAC input for its servos, and thus the delta to wye transformer is needed?


-- 
Mark J. Blair, NF6X <nf6x at nf6x.net>
http://www.nf6x.net/