inverter overload (was transformer inrush) [RE-wrenches]

Darryl Thayer daryl_solar at yahoo.com
Tue Jan 6 18:43:04 PST 2004


Allan & Kirk
where do you purchase your current relays?  What do
you recommend?
Daryl

--- "Kirk Herander, VSE" <kirk at vtsolar.com> wrote:
> Allan,
> 
> True, but I'm also concerned about less surge
> headroom should the inverter
> already be loaded down by both fridges running at
> the same time and a pump
> turns on.
> 
> Kirk
> 
> Vermont Solar Engineering
> North American Board of Certified Energy
> Practitioners Certified Solar PV
> InstallerT
> Xantrex Certified Dealer Charter Member
> Kirk Herander
> PO Box 697
> Burlington, VT. 05402
> www.vermontsolar.com
> www.backeastsolar.com
> 800.286.1252 - 802.863.1202
> fax 802.863.7908
> 
> ----- Original Message -----
> From: "Allan Sindelar"
> <allan at positiveenergysolar.com>
> To: <RE-wrenches at topica.com>
> Sent: Tuesday, January 06, 2004 5:15 PM
> Subject: Re: inverter overload (was transformer
> inrush) [RE-wrenches]
> 
> 
> >
> > ----- Original Message -----
> > From: "Kirk Herander, VSE" <kirk at vtsolar.com>
> > > 2) Use several current sensing relays to
> prioritize the pumps and
> fridges.
> > > For instance, if current is sensed on the septic
> pump circuit, the relay
> > #1
> > > will cut power to the well pump.
> > > If current is sensed on fridge #1 circuit, relay
> #2 will cut power to to
> > > fridge #2.
> >
> > Kirk,
> > Normally fridges don't draw enough surge to
> warrant sequencing. I'd be
> more
> > concerned about the pumps. Start with the biggest
> surges as your dominant
> > priority loads.
> > Allan @+E


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