[RE-wrenches] Whisper Controller Conversion

[Windsine Inc.]

If the stator is now configured for 48v nominal, why not run it through a
conventional packaged 3 phase rectifier directly stalled to the 48v battery
bank through a fuse of course (that's sized to never blow under turbine
current). You can also add a shorting stop switch prior to the rectifier -
not after it. That's if you can't get your controller repaired.

You may lose a little operating efficiency but it works fine.
You could also run it through an mppt controller to get your efficiency
back but you will also have to add the rectifier and stop switch.

RoyR
On Feb 6, 2015 7:55 AM, "Mac Lewis" <maclewis1 at gmail.com> wrote:

> Hello wrenches,
>
> Yesterday, we converted a Whisper 200 over from 24V to 48V operation.  We
> lowered the turbine and rewired it.  We set the Dip switches in the
> controller (1 & 2 to off) and rewired the dump load as specified in the
> manual.  For some reason, when we put the 55V battery voltage to the
> controller, it smoked it.  We triple checked all of our connections and
> settings.  Everything looks like the manual specifies.
>
> Luckily for us, we happen to have a spare Whisper controller that I can
> give this guy.  If it was a fluke and the controller just had a bad
> component, fine, no problem.  However, I'd like to know if I'm missing
> something about the 48VDC conversion before we smoke another one.  Are
> there known issues, operating this controller at 48V?
>
> Any insights are appreciated.  Thanks, in advance.
>
>
>
> --
>
>
>
> Mac Lewis
>
> *"Yo solo sé que no sé nada." -Sócrates*
>
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