[RE-wrenches] Overcurrent error SW4024

[Dan Fink]

Hi Mac;

We are having a similar problem at our metal shop with two stacked
SW4024s. They are stacked so that inverter #2 idles until something
240V is turned on -- well pump and welder are the only 240 VAC loads.
We are getting an overcurrent error and shutdown by just turning the
welder's power switch on -- NOT when starting to weld.

Any help from the list appreciated!

-- 
Dan Fink,
Executive Director;
Otherpower
Buckville Energy Consulting
Buckville Publications LLC
NABCEP / IREC accredited Continuing Education Providers
970.672.4342 (voicemail)

On Thu, Mar 29, 2012 at 8:25 AM, mac Lewis <maclewis1 at gmail.com> wrote:
> Hello wrenches,
>
> I have a customer that I have been working with over the phone.  He has a SW
> 4024, with a T240 transformer feeding a 2 HP well pump on a timer.   The
> system has worked well for years, but recently, he has been getting
> overcurrent errors when the well pump starts.  It's not every time, but
> about every other time.  He also did an experiment where he turned off the
> well pump, and gets the overcurrent error just energizing the transformer.
>  Does this indicate the transformer is failing?  What are other explanations
> for this behavior?
>
> Thanks for any advice
>
> --
>
>
>
> Mac Lewis