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I think two ct clamps can be used this way (although I'venot actuallytried it myself): ideally a matched pair, but ct clamps with an identical turns ratio ought to work (not sure what that would be for your inverter but a ratio of 2000:1 is common from memory) - or a ct clamp that can take both cabl...

Not looked at the vid (very slow copper wire broadband). As there's little room to add a Henley between the existing Henley and the meter, can you instead add one to the right of the existing live henley (in the house c.u. tail), with enough room between the henleys to fit the ct clamp, then transfe...

My 2p worth: position 1 is essentially identical to where the ct is now, so won't be any different. Position 2 would mean the house and ev charger are both running off the grid instead of the battery, I think. I'm not sure CP's position 3 would work as you want, but I'm not certain that it wouldn't ...

I can only guess:- Assuming the 'warm' panel is in a string of 4 with the three below it, and the four lower panels on the right are the other dc string. There is a tree shadow on the other three of that string so it would naturally be warmer, but also (depending on the minimum startup voltage for t...

Greetings! Here under my actual name, having retired from the off-grid world some years back, so now no association with any particular company, installation, ideology. I remember when ... settings were done by jumper blocks on live circuit boards, logging usage by modified battery alarm clocks, an...

The brief voltage transient looks like a normal mppt 'scan' to me too. If the general mppt voltage has dropped from 340-370 to around 310-330(?) That might suggest you've 'lost' one panel - one panel has shorted bypass diodes perhaps - but that's quite unusual. Edit: if one of your panels is pariall...

An adjustable voltage sensitive no relay that can break under load would be nice. Would have to hook it up on battery side so it broke at say 50.1V. This may become more of a PITA than its worth. Not yet though! Yes a voltage sensing relay would be my next idea: Possibly something like this:- https...

Great answer from the nice man in China "can't". :D Had a look about and this looks like it will work. I bought the built unit rather than the diy board. https://www.aliexpress.com/item/1005008627585436.html?spm=a2g0o.productlist.main.7.1b516a7ankbBPT&algo_pvid=fcb6e9ab-4b7b-488e-8984...

I suspect the main issue would be if it has an overvoltage protection circuit which kicks in if the output exceeds nominal by a few %. If it just goes into fault mode and needs turning off and on to reset, that may not be a problem: - it's already done it's job by the time it faults out. A blocking ...

Ok, I think I understand: With the recommended 300kg preload, the internal pressure should never exceed that, so not cause the cells to expand against the springs. Whereas if you put them in a standard rigid case without preload, they will expand at some point until any residual wiggle room has been...