Continuing the discussion from North America, CTs and Calibration : I also recently acquired an emonpi and have it running monitoring 2 circuits on my electrical panel. As far as that goes, it is working fine. But, I neglected to check that the standard CT’s would fit over the supply wires when I or…

Hopefully, your CTs will obey the same convention as the USA, so look at the “ Use in North America ” page for details: “For consistency with the standard YHDC CT supplied by the shop, connect the white wire to the plug tip and the black wire to the sleeve. There should be no connection to the ring.” …

did some pretty nasty soldering and got them connected with the white to the tip and black to the rim or sleeve. I get outside, and by this time is cold and dark. I manage to open up the panel but the two copper wires that feed in from the meter side are too close together for the CT to slip aroun…

Those of us who are engineers would have looked inside the panel first, before buying anything. (He says - too late!) You might be able to split the cables apart with some gentle persuasion, but this is where experience is necessary to know when to stop - before you do damage. A photo might help.

i am familar with my panel and I’m not an engineer. What I didn’t know was the size of the CTs they are very chunky and no dimensions were on the webpage and, anyway, I had no choice of what I was to get and I see others stating that they sometimes have to make changes to the hardware to allow them…

[image] Duncan_Cunningham: and no dimensions were on the webpage That would depend on which web page you looked at. On the “Use in North America” page of ours, there are dimensions for some and links to the manufacturers or distributors’ websites for the remainder. We can’t speak for c.t’s th…

Robert, I’m not attacking or criticizing anyone, I’m stating that when I ordered from the company I didn’t look for dimensions because I’m not smart enough to realise that maybe the CT would be larger thickness from the inside to the outside and more difficult to fit into place. If I’ve offended an…

[image] Duncan_Cunningham: “[The] use in North America” that I’ve look at many times isn’t helping me all the areas I’m dealing with. So let me know in what areas it isn’t helping, and maybe it can be improved. There seems to be a lot more interest now from that continent than when the page w…

the service panel I have is the type that most new homes in America might have. so maybe it would be a good example to work from. anything else should have smaller gauge cabling. Maybe I’m not doing this right but my setup for EmonPi is a little different because I read both hots coming in because…

"If it’s not connected to another c.t hardware-wise (i.e. it’s physically wired in parallel), then you don’t need daylight. You can put a minus sign in front of its scale factor in the “scales = …” I’m sorry, I don’t know what that means yet. Scale Factor? I’ve been going through the inputs and I…

[image] Duncan_Cunningham: Maybe I’m not doing this right Oh but you are doing it right. Even though you’ve tried to balance the loads, which in itself is the correct thing to do, you’ll never achieve perfect balance all of the time. There will inevitably be an imbalance most of the time. You…

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