Discuss ct clamps too close together? in the Solar PV Forum | Solar Panels Forum area at ElectriciansForums.net
If each inverter has it's own individual AC isolator just turn two off, removing CTs will not do anything helpful.
Has this system ever worked for any extended period of time without faulting ?
Hi - Some invertor manufacturers advise using 100mA RCD on them. If you've the details we might be able to check. Also please confirm if you mean 30mA where you've said 30ms in #24 .
Changing the consumer unit RCD from 30mA to 100mA may not be possible here as the 30mA RCD may still be required for the other circuits.
Hi - thanks - do you know the installation earthing type and any test results?
Ok, what is attached to the RCD that trips?
I will try that when I get home. Is it ac off first then dc off? to turn on is it ac on then dc on?
If each inverter has it's own individual AC isolator just turn two off, removing CTs will not do anything helpful.
Has this system ever worked for any extended period of time without faulting ?
If each inverter has it's own individual AC isolator just turn two off, removing CTs will not do anything helpful.
Has this system ever worked for any extended period of time without faulting ?
Yes, those inverters do have inbuilt export limitation.
If you could confirm how the panels are configured (how many to each inverter) you should be able to get at least one working - don't forget the CTs are directional.
Again, has the system ever worked without faulting for any lengthy period of time ?
It would interesting to view the inverters log files, they should show what grid voltage the inverters are seeing - I suspect it's going above it's expected range.
I did get the installer to make sure the voltage from the inverters was above the grid voltage to make sure it was used in preference to the grid. I don't know how to check the log files I'm afraid.
That's not quite how it works, but let's hope they've not altered any grid parameters.
You should quite easily be able to figure out how to access the statistics and logs, there's likely to be a Bluetooth connected app.
That'll likely be the second thing on the to do list of anyone you got to site.
If 260 was indeed your mains grid voltage, you'd probably be best advised to turn all inverters off, and get someone out to site.
That's way outside of the allowable range.
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