DC Flex installation 1000Amp shunt required [RE-wrenches]

[Darryl Thayer]

Hello
When I had the problem on my 12 inverter system, I
paralleled two 500 amp shunts, and paralleled the
(kelvin) sence circuits.  The Parallel shunt is 25 mV
at 500 amps or 50 mV at 1000 amps.  It seems to work,
but I have been told that a 1000 amp shunt is
avaiable.  However I think it is not 50 mV at 500
amps, (100 mv at 1000 Amps) but some other value, so
you must recalibrate the data you collect.
Darryl
  
--- Blair May <tump at hughes.net> wrote:

> 
> 
> Wrenches & Wrenchetts,
>  
> Installing the DC Flex net w/ a quad stack of 2435
> VFXs. I am required
> to install an additional shunt (paralleling 2 /500
> A,using Cu buss bar
> stock)in order to meet the required ampacity rating,
> 
> 1 500 A shunt won't make it! (how about a OB factory
> option  Chris
> ????1000Amp Shunt assembly ?????) 
> So do I need to use just one set of the shunt wires
> to my NOW 1000A buss
> bar/shunts or both ?shunts need to be connected? 
> I am looking to monitor; 1) Inverters DC n/out, 2)PV
> source n/out, 3) my
> DC input into batteries from Hydro 
>  
>      <mailto:Tump at hughes.net> Tump at hughes.net
> <http://www.swnl.net/> www.SWNL.net
>            Solarwinds Northernlights   
>    Serving Mid Coast Maine & Northern California
>      Me.# 207-832-7574  Cl.#  610-517-8401
> 
>       ********  MAINE'S CHARTER ********
>      NABCEP    "Certified PV Designer & Installer" 
>    
>       ********  MAINE'S CHARTER ********
>    Trace Xantrex "Certified" Dealer / Installer"
>    
>   
>  
> 
> [Non-text portions of this message have been
> removed]
> 
> 
> - - - -
> Hosted by Home Power magazine
> 
> To send a message: RE-wrenches at topica.com
> 
> Archive of previous messages:
> http://lists.topica.com/lists/RE-wrenches/read
> 
> List rules & how to change your email address:
> www.mrsharkey.com/wrenches/etiquette.php
> 
> Check out participant bios:
> www.mrsharkey.com/wrenches/
> 
> Moderator: michael.welch at homepower.com
>
> 
> 
> 



      ____________________________________________________________________________________
Never miss a thing.  Make Yahoo your home page. 
http://www.yahoo.com/r/hs


- - - -
Hosted by Home Power magazine

To send a message: RE-wrenches at topica.com

Archive of previous messages: http://lists.topica.com/lists/RE-wrenches/read

List rules & how to change your email address: www.mrsharkey.com/wrenches/etiquette.php

Check out participant bios: www.mrsharkey.com/wrenches/

Moderator: michael.welch at homepower.com
--^----------------------------------------------------------------
This email was sent to: michael.welch at re-wrenches.org

EASY UNSUBSCRIBE click here: http://topica.com/u/?bz8Qcs.bz9JC9.bWljaGFl
Or send an email to: RE-wrenches-unsubscribe at topica.com

For Topica's complete suite of email marketing solutions visit:
http://www.topica.com/?p=TEXFOOTER
--^----------------------------------------------------------------