[RE-wrenches] "DC current Injection": Whazzat?

[RE Ellison]

If getting rid of the blender which is the easier choice or at least trying a different blender to see if that does it is out of the question

How about the possibility of changing the solar edge to the magnum version of the panel inverter that they use to see if there are more compatible?

Possibly disconnect all and try just 1 new panel mount 
to test ?

Just a thought,
Bob ellison

> On Aug 17, 2017, at 9:51 AM, Mick Abraham <mick at abrahamsolar.com> wrote:
> 
> Hi, Wrenchies~ 
> 
> My client has an AC coupled battery based setup. The batteries are good ol' lead floodies in pretty good health, the battery based inverter is Magnum MS4448PAE, & the string inverter is SolarEdge. There's also a Magnum ACLD "AC Load Diversion" control to regulate battery state of charge when there's no grid power. 
> 
> When there's no grid power & the system is on it's own, the SE inverter sometimes throws an error code 36 "DC current injection". This happens when the mongo blender is operated (Vitamix brand, older model) & again in a >no public power grid< situation. The error causes the synchronizing string inverter to de-couple from the Magnum then the standard five minute time-out ensues before a re-couple.
> 
> I think DC current injection is when the transformer-less SE inverter pumps a blip of DC into the grid--or micro-grid when there's no grid power--and I guess DC injection is IEEE verboten because it compromises power quality/power purity. Can the experts confirm if this is correct understanding, explain how DC can show up on the AC, and offer suggestions other than a replacement blender?
> 
> Thanks as always. The Wrench List is the Bomb!
> 
> Mick Abraham, Proprietor
> www.abrahamsolar.com
> 
> Landline: 970-731-4675
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