[quote=“Robert.Wall, post:4, topic:15653, full:true”]
If those are the YHDC ones from the shop, then you should be OK, but I wouldn’t leave one on an energised circuit and not short it. As I wrote above, you’re depending on the protective diode inside.
To me, this is a clamp - busbar variety:
Aahh! Ok… got it… yeah, that’s a proper clamp… there you go when a n00b is trying to explain. But yes, they’re all from the shop.
If the advice is to short them - how is this done?
So that effectively rules out monitoring the shed feed at the main switchboard - unless of course you’re prepared to neglect the usage out there. What about the practicality of getting a radio signal from the shed - either WiFi or ISM band? 50 m isn’t silly if there’s a reasonably clear path, but if there’s another shed (metal), or a metal caravan or truck parked in the line of sight, or several thick walls, you may struggle. I’m not a fan of mains-borne Ethernet adapters, but that’s another possibility.
I have both wifi and switched ethernet out there, so have the option of hooking into existing network. The switched network is the same whereever on the property it is… and the wifi is a mesh wifi with the shed on a cat6 backhaul configured (Netgear Orbi). Seems to work well for all network requirements back there…
Is there a way then to use the existing network to hook in the solar / inverter usage of sorts?
[> quote=“jskogsta, post:3, topic:15653”]
Perhaps a emonPi which could be used for the solar
That doesn’t make too much sense. If that’s where your emonCMS runs, you’ve got to get data from the 3 emonTx’s out there, and the web pages back. If you have an emonBase in the house, the only reason you need the RPi in the shed is to get an Ethernet/WiFi output: you could have another emonTx out there and go serial to Ethernet to mains in the shed, and mains to Ethernet to router in the house; or have the WiFi enabled emonTx and WiFi to mains instead.
Hmm… yeah, that makes sense… see there’s several options. As I mentioned above, I have network in the shed as well… just that where the mains board is, it is wifi only. Could stretch a cat5/6 cable there, but have not to date. But have both wifi + switched ethernet by the shed board + inverter…
It does sound like you will want the emonBase in the house. It’s a Raspberry Pi with a fairly small module sitting on the GPIO connector, that sits no higher than the stacked USB sockets. You can look at it as an emonPi with no energy monitoring, display or box. It can easily go in a not very large plastic project box.
Ah… ok… yeah, that makes sense… the emonBase in the house and then emonTX’s at the front + then I guess the question is the shed. Can a emonTX be used there for the solar/inverter monitoring? How does that get configured then in the emonTX or emonBase as a solar monitoring system? Sorry to ask, but never configured this setup before. Very handy with UNIX and shell and all of that, but not familiar with this system and don’t have the units to play with yet. Trying to figure out what to buy to then start coniguring it.
You could of course go belt & braces and have both emonPi in the shed and emonBase in the house, and cross-feed the data so that each gets a complete set of data and is a backup to the other. The fly in that ointment is SD cards tend to fail if you get a mains failure, so both could get damaged simultaneously (Sod’s Law).
Ah… yes, that could also work I guess. So if i understand it right, I just need to get the clamps in the right spots in the shed for the inverter monitoring… and it does not really matter whether that is emonTX or emonPi?
Can take off the covers to take a closer look at the switches & cables as to where I need things connected if that helps.
Greatly appreciated for the quick and detailed responses! Really looking forward to getting this up and running!