Hi I have put a CT on solar output which has a maximum of 5KW, I am recording upto 8Kw, any ideas how I can fix this, thanks in advance
Most likely something with the configuration setup. Could you post a screenshot of the input setup, a screenshot of your status display, and if possible, a picture of the panel showing the CT installed on the inverter output?
I see that you have the solar CT configured as generic. I’ll need to know what you have specified for turns ratio as that is almost certainly incorrect and the source of the error.
Thankyou, I used the data sheet to set up the generic CT, I’ll replace it with one I was sent and let you know how I get on, thanks for your speedy response and great support
Thankyou all fixed, I had also checked double as I am in Australia, but records properly with double unchecked?
Right. In North America the service is split-phase with both 120V and 240V. Typical IoTaWatt installation uses a 120V reference and “doubles” for 240V circuits. Your reference is 240V so you do not double for the 240V circuits. I should have noticed the (2x) on the inputs in your earlier post. None of those circuits should be doubled.
Thanks again, now all I need to do is decide whether to use a server so I can monitor when I am away?
If you only need to see your solar generation and consumption, I’d recommend giving PVoutput a try. It’s free (nominal donations welcome), easy to setup, and has a decent phone app.
Don’t overlook the IoTaWatt’s capabilities for remote access. Most routers support port forwarding and dynamic DNS, which allows access to specific devices. If you do expose the web server to the internet, you can activate access control by setting a password, which is reasonably secure.
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Thankyou I’ll try the PVoutput
I did find this functionality already and have it set up on all my installations, but sometimes when opening the Graph+, I have to enter 3 times the account info before I can use the system. Is this normal behaviour?
It seems to be related to how the various browsers implement the digest authorization. Unlike basic authorization where the browser simply collects the username and password then passes those values in a plaintext header for every subsequent interaction, digest maintains a context with the server where there is a nonce (number used once) and a transaction sequence number as components of the encrypted authorization. I don’t claim that IoTaWatt does it perfectly - it’s very complicated and I had to code a unique handler to allow multiple concurrent sessions - but it does seem to work OK after the initial handshake. What different browsers do when transitioning to new pages seems to vary.
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thanks for clarifying 