Hi Kevin,
What kind of boat and what kind of performance are you getting from this arrangement? It would be nice to objectively compare it to other drive solutions.
Fair winds,
Eric
Marina del Rey, CA
--- In electricboats@yahoogroups.com, Kevin Pemberton <pembertonkevin@...> wrote:
>
> Yes bought a VFD and motor off ebay. 3hp 2200w motor, 80%efficient VFD,
> Sine wave inverter and 110 to 220v transformer. Could not talk myself
> into a 200+ voltage battery bank with no real way to reduce the voltage
> in an event. So used the DC to AC stages built into an inverter. The
> losses are high but one advantage was the ability to use an off the
> shelf genset for extended motoring.
>
> If you feel the pot is a questionable device wire a harness for a plug
> in pot and only use military grade device.
>
> Can you do it? yes
> Would I do it again? maybe
>
> I am looking into Microchip development board and software to make my
> own VFD. Rewiring an old high efficiency 3phs motor to run with 48v
> supply and limit the voltage. I expect this to take many years but it is
> only a project to play with, and an excuse to spend the money.
>
> Kevin Pemberton
>
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