Well pumps and SWs revisited [RE-wrenches]

[Allan Sindelar]

Ken,
You're looking for a new pump. A 5548 might have handled a 3-wire pump, but
not a two-wire.
Allan @+NRG

----- Original Message ----- 
From: "Ken Hulet, Engineering Services Co." <esco at revolutionearth.com>
> I know this has been beaten to death but I got a call a year ago about
> a potential PV install. The owner was building and so we went through
> some of the basics. You know, 115V well pump if possible and if not,
> smaller and efficient. I never hear from the guy until... months later
> we get to put in a SW 5548 system. I'm concerned about the pump because
> the well pump installer laughed when our customer mentioned a 115V pump.
>
> We put in the T-240 and learned the pump is a 1.5HP, TWO wire and
> SURPRISE the 5548 trips on high current when the well pump calls for
> power. Using a Fluke clamp on I measured 29.7A inrush (100ms) on one of
> the 230V lines when using the generator to power the pump.
>
> Any retrofit/improvement ideas or are we looking for a new pump?

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