Hi,

I purchased a WEM3080T to monitor a 5500W, 50AAC 120V single-phase inverter which is part of an entirely off-grid solar system with 48VDC battery storage, and a 120VAC generator back-up.  Since we have no grid tie, I was thinking of putting CT-1 between the AC generator and the inverter, substituting "Generator" for "Grid"... obviously most of the time it will read zero, and we'll never be selling power back to the generator.  Thoughts?  CT-2 and CT-3 are a little confusing -- it seems to me they will be monitoring the same thing -- A/C output of the inverter.  The A/C power from our inverter supplies our A/C load, but my understanding is that the 48VDC batteries are charging directly from the PV Solar Charge controllers, which are all DC.  The only time the batteries would possibly charge from the inverter is if the generator were to be engaged.  If I am only able to utilize two of the three monitors (generator & load) that's fine, I'm just wondering if there's a better way to set things up.

thanks,

david

Hi:

Sorry, our products (WEM3080,WEM3080T) can only measure AC parameter .

Compared with grid-tied system, the WEM3080T can do little work in off-grid system.

The usage I recommend is what you have mentioned in above post, like this pic.

BR

No need to apologize.  Our inverter can't be networked directly nor can the loads be monitored remotely, so being able to do those things, as well as integrate notifications and other triggers via IFTTT is a great step forward for our system.  We can monitor the DC solar controller data online, so the WEM3080T will complete everything we need to keep track of.

thanks for the reply and the drawing... that's exactly how I was thinking of setting it up.

d