Re: [RE-wrenches] Magnum Frequency Shift

Sat, 13 Jun 2020 15:05:33 -0700 

Jay,

Do you use an NO or NC solid state relay?

Mark

On 6/13/2020 7:46 AM, Jay wrote:

Hi Mark,

Then the relay method is easy and reliable to use.

Relay trips at whatever battery voltage you don’t want to exceed.

I use a solid state relay with a good heat sink, only switching one leg.

Jay







On Jun 13, 2020, at 7:05 AM, Mark Frye <ma...@berkeleysolar.com> wrote:



On.

On 6/12/2020 7:27 PM, Jay wrote:

Hi Mark

Is this off grid or on?

Jay


On Jun 12, 2020, at 7:09 PM, Mark Frye <ma...@berkeleysolar.com> wrote:



I see.
What you say about the frequency shift being slow makes me again doubt the value of even using it in my application.
I have a controller that can regulate the AC dump load. That same controller has a high limit switch which I could use to cut the AC feed to the GT inverters. But then both functions are in the same device. On the other hand, it is a very reliable device so....perhaps sufficient. 

On 6/12/2020 6:37 PM, Bradley Bassett wrote:
I have a relay on the XW+ Aux and also frequency shift which is usually slower, so the relay usually cuts out first. I also have a DC coupled array feeding the system. 

Brad
On Fri, Jun 12, 2020 at 4:34 PM Mark Frye <ma...@berkeleysolar.com <mailto:ma...@berkeleysolar.com>> wrote: 

    Yes an elite group within an elite group.

    So the SB240 does not have frequency shift /wattage control.
    How are you implementing charge control in stand alone mode?

    On 6/12/2020 4:28 PM, Bradley Bassett wrote:

    Wow! Someone else with SMA SB240's, I have 12 of them that
    I've AC coupled to an XW+5548. They are very solid performers.

    Brad
    AEE Solar

    On Fri, Jun 12, 2020 at 3:39 PM Mark Frye
    <ma...@berkeleysolar.com <mailto:ma...@berkeleysolar.com>> wrote:

        Hello,

        I have a small array of 8 - SMA SB240 microinverters on
        the roof. Peak
        power out of the array has never exceeded 1800 W.

        I am adding a Magnum MS-PAE 4448 with a 315 AH flooded
        Lead Calcium
        battery bank.

        Cheers

        On 6/12/2020 12:31 PM, Chris Schaefer wrote:
        > G'Day Mark,
        >
        > Which grid tied inverter are you attempting to AC
        couple with. I
        > apologize if you already called it out in the thread.
        >
        > Christopher
        _______________________________________________
        List sponsored by Redwood Alliance

        List Address: RE-wrenches@lists.re-wrenches.org
        <mailto:RE-wrenches@lists.re-wrenches.org>

        Change listserver email address & settings:
        http://lists.re-wrenches.org/options.cgi/re-wrenches-re-wrenches.org

        List-Archive:
        
http://www.mail-archive.com/re-wrenches@lists.re-wrenches.org/maillist.html

        List rules & etiquette:
        www.re-wrenches.org/etiquette.htm
        <http://www.re-wrenches.org/etiquette.htm>

        Check out or update participant bios:
        www.members.re-wrenches.org
        <http://www.members.re-wrenches.org>


    _______________________________________________
    List sponsored by Redwood Alliance

    List Address:RE-wrenches@lists.re-wrenches.org  
<mailto:RE-wrenches@lists.re-wrenches.org>

    Change listserver email address & settings:
    http://lists.re-wrenches.org/options.cgi/re-wrenches-re-wrenches.org

    
List-Archive:http://www.mail-archive.com/re-wrenches@lists.re-wrenches.org/maillist.html

    List rules & etiquette:
    www.re-wrenches.org/etiquette.htm  
<http://www.re-wrenches.org/etiquette.htm>

    Check out or update participant bios:
    www.members.re-wrenches.org  <http://www.members.re-wrenches.org>


    _______________________________________________
    List sponsored by Redwood Alliance

    List Address: RE-wrenches@lists.re-wrenches.org
    <mailto:RE-wrenches@lists.re-wrenches.org>

    Change listserver email address & settings:
    http://lists.re-wrenches.org/options.cgi/re-wrenches-re-wrenches.org

    List-Archive:
    http://www.mail-archive.com/re-wrenches@lists.re-wrenches.org/maillist.html

    List rules & etiquette:
    www.re-wrenches.org/etiquette.htm
    <http://www.re-wrenches.org/etiquette.htm>

    Check out or update participant bios:
    www.members.re-wrenches.org <http://www.members.re-wrenches.org>


_______________________________________________
List sponsored by Redwood Alliance

List Address:RE-wrenches@lists.re-wrenches.org

Change listserver email address & settings:
http://lists.re-wrenches.org/options.cgi/re-wrenches-re-wrenches.org

List-Archive:http://www.mail-archive.com/re-wrenches@lists.re-wrenches.org/maillist.html

List rules & etiquette:
www.re-wrenches.org/etiquette.htm

Check out or update participant bios:
www.members.re-wrenches.org


_______________________________________________
List sponsored by Redwood Alliance

List Address: RE-wrenches@lists.re-wrenches.org

Change listserver email address & settings:
http://lists.re-wrenches.org/options.cgi/re-wrenches-re-wrenches.org
List-Archive: http://www.mail-archive.com/re-wrenches@lists.re-wrenches.org/maillist.html 

List rules & etiquette:
www.re-wrenches.org/etiquette.htm

Check out or update participant bios:
www.members.re-wrenches.org



_______________________________________________
List sponsored by Redwood Alliance

List Address:RE-wrenches@lists.re-wrenches.org

Change listserver email address & settings:
http://lists.re-wrenches.org/options.cgi/re-wrenches-re-wrenches.org

List-Archive:http://www.mail-archive.com/re-wrenches@lists.re-wrenches.org/maillist.html

List rules & etiquette:
www.re-wrenches.org/etiquette.htm

Check out or update participant bios:
www.members.re-wrenches.org


_______________________________________________
List sponsored by Redwood Alliance

List Address: RE-wrenches@lists.re-wrenches.org

Change listserver email address & settings:
http://lists.re-wrenches.org/options.cgi/re-wrenches-re-wrenches.org
List-Archive: http://www.mail-archive.com/re-wrenches@lists.re-wrenches.org/maillist.html 

List rules & etiquette:
www.re-wrenches.org/etiquette.htm

Check out or update participant bios:
www.members.re-wrenches.org



_______________________________________________
List sponsored by Redwood Alliance

List Address: RE-wrenches@lists.re-wrenches.org

Change listserver email address & settings:
http://lists.re-wrenches.org/options.cgi/re-wrenches-re-wrenches.org

List-Archive: 
http://www.mail-archive.com/re-wrenches@lists.re-wrenches.org/maillist.html

List rules & etiquette:
www.re-wrenches.org/etiquette.htm

Check out or update participant bios:
www.members.re-wrenches.org


_______________________________________________
List sponsored by Redwood Alliance

List Address: RE-wrenches@lists.re-wrenches.org

Change listserver email address & settings:
http://lists.re-wrenches.org/options.cgi/re-wrenches-re-wrenches.org

List-Archive: 
http://www.mail-archive.com/re-wrenches@lists.re-wrenches.org/maillist.html

List rules & etiquette:
www.re-wrenches.org/etiquette.htm

Check out or update participant bios:
www.members.re-wrenches.org

Reply via email to