So yesterday afternoon I decided to move my load CTs from measuring only the load to the house, to measure everything behind the meter, which is where most users would have them. The CTs basically sit between the meter and the main breaker in the panel. In my case, I have a fused disconnect immedi…

Here’s a simplified diagram showing the before and after change I made to the Mains/Usage CTs: [image]

It seems to me like you might have to tell it this is a brand new installation and start from scratch as what Sense is seeing down stream is totally different than what it was seeing before. I would send this new diagram to support directly and get their input.

Thanks I will do that. Power Meter from just now. It is very obvious what is going on. My sense needs to be told to subtract out the Solar CT readings from the Mains CTs readings. Right now it is just reading the Mains CTs without applying the needed correction factor. [image]

Based on something I just did, try swapping your main CTs so that they’re on opposite legs. I wonder if when you swapped them you inadvertently put them on the reverse legs of AC.

I was careful to label my L1 legs with Blue tape and my L2 legs with Red tape when I installed everything. I did not reverse the CTs when I moved them. I did another Solar re-calibration at noon today, and lo and behold, it seems that took care of the issue. [image] [image] So either doing a …

[image] peter: My sense needs to be told to subtract out the Solar CT readings from the Mains CTs readings. Right now it is just reading the Mains CTs without applying the needed correction factor. @peter It seems like Sense polarity issues is being done manually by technicians, where I beli…

I have been following that thread as well. Like I said above, I’m 99% sure that I did not reverse my solar CTs when I moved them from being on the feed to the house panels, to being on the feeder to my whole site. I do still have the issue where one of my Solar CTs drop out. [image] You can cle…

100% email unfortunately. I’m surprised someone hasn’t interjected here yet, I’ve posted a couple @Maarja-Liis call-outs already today. They’re not quite like genies, it seems :frowning:

I wonder if you’d be up for something? I’ve got a second pair of cts on the way - we can’t figure out why my solar is under-reporting, and I wanted to see if a different pair of cts would behave any differently. The curves are all perfect, they just read about 6% less than my inverter and meter is …

Sure, I’d be up for that. My POCO installed a new meter at my place last week, so I now get daily DE (kWh delivered to me), RE (kWh they receive from me) and NET (overall usage) reports from my meter. So I can compare Sense production numbers to what my RE readings are on a daily basis. POCO is s…

Moved load CTs to feed from meter and Sense is really confused now

Technical Questions

miracj February 17, 2017, 6:16pm 10

@peter It seems like Sense polarity issues is being done manually by technicians, where I believe it could easily be done programmatically during solar setup. See my post here Reverse power detection

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Moved load CTs to feed from meter and Sense is really confused now

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