Re: [RE-wrenches] SMA -40 Arc Faults

2019-08-01 Thread Matt Partymiller
Dana, We continue to have this issue across the majority of SMA and Tigo systems. Many sites go months or years with no issues, then a nuisance trip. Sites with just SMA are fine. SMA/Tigo seem entirely disinterested in acknowledging an issue. One SMA tech did tell us the new -41 inverters h

Re: [RE-wrenches] SMA -40 Arc Faults

2019-08-01 Thread Dana Brandt
Hi everyone, We're experiencing a large number of nuisance AFCI trips on -40 inverters with Tigo. Both SMA and Tigo claim there are no compatibility issues and that our experience is unique and others aren't having this problem. Are the rest of you still having issues with this? Thanks, Dana Da

Re: [RE-wrenches] SMA -40 Arc Faults

2018-05-08 Thread Blake Gleason
Hi Matt - A couple of years ago, I worked extensively with an inverter manufacturer (sorry I can't name) who was seeing a lot of arc-fault nuisance tripping on systems with Tigo. They had some fancy test equipment and did a bunch of analysis and found that Tigo was creating a lot of noise on the

[RE-wrenches] SMA -40 Arc Faults

2018-05-08 Thread Matt Partymiller
Wrenches, I recall seeing some past threads about SMA arc fault issues but am curious if others are using SMA -40 inverters extensively and NOT seeing intermittent arc faults? If so, I would be curious what your DC installation practices look like? Are you ensuring that homerun ends use connecto