[RE-wrenches] Solectria TL woes

[Jerry Shafer]

Andrew
What is the AC Voltage when this occurs, to much VAC will shut down the
inverter. It also looks like you are clipping all the inverters during the
mid day, is due to low temps or does this always happen. What is the DC
MPPT voltage, is it at the upper limit.
Jerry
NABCEP PV inspector

On Tue, Feb 25, 2020, 12:02 PM Andrew Truitt <atruitt at gmail.com> wrote:

>
> Wrenches,
>
> I have a couple of Solectria 36TLs at a small community solar site in CO
> that shut themselves down occasionally for what appears to be no reason.
>
> [image: image.png]
>
> Voltages and frequency are normal, firmware is updated, IR scan shows
> nothing irregular, and the other 2 inverters at the site (50TLs) are fine.
> It can happen under sunny or cloudy conditions.  Solectria will RMA the
> inverters but before I go out and replace I'm curious if anyone has seen
> this behavior?
>
>
> Regards,
>
> Andrew Truitt
>
> www.dr.ventures
> d: 202.486.7507
>
> NABCEP Certified PV Installation Professional ID: 032407-66
> Colorado Journeyman Electrician License No.: 600132
>
> <https://www.linkedin.com/in/andrewtruitt/>
>
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