Well pumps and SWs revisited [RE-wrenches]

[Joel Davidson]

Ray,
Thanks for sharing your experience. Is anyone else seeing better performance
(surge, etc.) from SW4024s versus SW4048s?
Best regards,
Joel Davidson

Ray Walters wrote:

> My experience is that the DR 2424 out surges the 4024 which out surges the
> 4048 which out surges the 5548. I do sell the Sw4024 and 48, but only for
> systems that need the extra bells & whistles like auto gen start etc. For
> the money the DR series are still making people happy. I am interested in
> the SW plus, but have not tried one yet. FYI, if a load has problems with
> the mod sine wave of the DR, it usually isn't cured with the pyramid wave
> of the SW series either. The pure wave of the Exeltech or Outback FX is
> sometimes the only cure. A DR inverter and an Exeltech together are still
> cheaper than a SW4024 and offer better wave form, lower no load draw, and
> better surge. Its not the most elegant wiring solution though.
>
> Still waiting for a better inverter,
>
> Ray
>
>   At 08:12 PM 10/1/2003 -0700, you wrote:
> >Wow!  Ray, does your pile include the SW4048/24 as well with its
> >respective/relative surge capacity?
> >
> >PD
> >ASAP POWER!
> >
> >-----Original Message-----
> >From: Ray Walters [mailto:remotech at taosnm.com]
> >Sent: Wednesday, October 01, 2003 7:03 PM
> >To: RE-wrenches at topica.com
> >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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