Well pumps and SWs revisited [RE-wrenches]

[Jay Peltz, Peltz Power]

Hi Ray,

The subject of the 5548's not being able to surge has been  discussed at
great length here on the site.  It has caught a LOT of people and put them
into some real problems.
There are no fixes ( except really change the loads or get new inverters)
for the problem.

Good luck,

jay

Peltz Power

----- Original Message ----- 
From: "Ray Walters" <remotech at taosnm.com>
To: <RE-wrenches at topica.com>
Sent: Wednesday, October 01, 2003 7:03 PM
Subject: RE: Well pumps and SWs revisited [RE-wrenches]


> NO one has mentioned in this thread that the SW5548 is terrible at surges.
> I've been disappointed that it trips its over current switch when a lowly
> DR2424 can hang in there.( on air compressors for example) This has been
> covered on the list before.
> I've run a 2 hp pump with a T240 and DR3624 before in an emergency. It
> started and stopped flawlessly even at 350 ft and 40 psi in the pressure
tank.
> I  put the SW5548 in the same pile as the PS series ,XTR sun tie etc. I
> won't sell em!
>
> Ray
>
> At 06:54 AM 10/1/2003 -0700, you wrote:
> >I recently installed a SQ 1/2 hp two wire and it starts flawlessly on
> >the VFX inverter I am currently running. Really does not have any surge
> >to speak of starts at low current and ramps up.  Lovely thing.
> >
> >Ezra
> >
> >-----Original Message-----
> >From: Jay Peltz, Peltz Power [mailto:jay at asis.com]
> >Sent: Tuesday, September 30, 2003 9:07 AM
> >To: RE-wrenches at topica.com
> >Subject: Re: Well pumps and SWs revisited [RE-wrenches]
> >
> >
> >Hi Ken,
> >
> >If you are looking for a pump answer then go with a Grundfos SQ pump.
> >They come in 240 and have no surge, therefor they work great especailly
> >with those 5548's.
> >
> >jay
> >
> >Peltz Power
> >----- Original Message -----
> >From: "Ken Hulet, Engineering Services Co." <esco at revolutionearth.com>
> >To: "RE wrenches topica.com" <RE-wrenches at topica.com>
> >Sent: Tuesday, September 30, 2003 5:27 AM
> >Subject: Well pumps and SWs revisited [RE-wrenches]
> >
> >
> > > 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?
> > >
> > >
> > > Ken & Chris Hulet
> > > Engineering Services Co.
> > > P.O. Box 4
> > > Blanchardville, WI 53516
> > >
> > > 608.523.3726
> > >
> > > http://www.revolutionearth.com
> > >
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