[RE-wrenches] Magnum MS4024 grief

drake.chamberlin at redwoodalliance.org drake.chamberlin at redwoodalliance.org
Sun Dec 18 10:25:05 PST 2022


If all else fails, cut the equipment ground prong from the attachment
plug to the generator. The generator is internally grounded. You appear
to have an internal ground in your system somewhere.  

---

On 2022-12-16 13:35, Kirk Herander via RE-wrenches wrote:

> You may have neutral and ground connected at more than 1 location, meaning at the genset and in house panel, which means the ground is carrying current back to the generator in parallel with the neutral. 
> 
> I remember with some Honda portables we had to float the neutral at the genset or the inverter would trip the generator's GFI when trying to charge the batteries. 
> 
> On Fri, Dec 16, 2022 at 1:16 PM Dave Angelini Offgrid Solar via RE-wrenches <re-wrenches at lists.re-wrenches.org> wrote: 
> 
> The easy answer is try another genset !  You have to be more specific, did it ever work? Is it new? etc.  Good Luck !
> 
> Dave Angelini Offgrid Solar
> "we go where powerlines don't"
> http://members.sti.net/offgridsolar/
> e-mail  offgridsolar at sti.net
> text 209 813 0060
> 
> On 2022-12-16 10:04 am, Chris Daum via RE-wrenches wrote: 
> Hi folks:
> 
> We have a new Magnum MS4024 mounted on an E-Panel using a MidNite Classic 150 and Whiz-Bang JR with power coming from an array of Trina TSM365-De06X-05(II) (three strings of three) with the ME-RC50 and a HUP SolarOne 6-85-14/24 battery.
> When we attempt to use the PFC (Power Factored Charger), the Gen Set's GFCI outlets trip.  Thus far we have verified the connections are secure, assured that the gen set is grounded, disconnected the jumper within the E-Panel between the ground buss and neutral, checked AC voltages, removed the MNSPD's from the buss(s)...  Stumped now on what an appropriate next step should be.  How do we get the PFC to function properly?  What are we missing?
> 
> Best,
> 
> Chris Daum
> Oasis Montana Inc.
> 406-777-4309 or 4321
> 406-777-4309 fax
> www.oasismontana.com [1] 
> 
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  -- 

Kirk Herander / kirkh at vermont.solar 

Owner|Principal, VT Solar, LLC 

_Celebrating our 31st Anniversary 1991-2022!!_ 

www.vermont.solar [2] 

dba Vermont Solar Engineering 

802.863.1202 
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