We had a power cut earlier, now the power is back on it's stuck on a grid voltage fault. I've tried restarting and also isolating from the mains and re-connecting.
I do notice the grid is reported at 269v which is higher than before the cut (was around 240v), but still within specification.
Any ideas?
A grid supply of 269 Vac is not within specification.
The UK allowed values are 230 Vac + or - 10%, so 207 V minimum and 253 V maximum.
The inverter should not restart until the grid voltage is within these limits.
This condition should be reported to your DNO as it is not doing your appliances any good.
https://www.energynetworks.org/customers/find-my-network-operator
Thanks, I called them and they admitted there is an issue in the area and they are working on it.
But it still begs the question why the inverter can't work given it's in spec?
tsouthwell it's not in spec... 269V > 253V
Givenergy's data sheet: https://www.givenergy.co.uk/pdfs/products/Version%202.0/Hybrid%20Inverter.pdf says:
"AC Range 180V - 280V"
@"tsouthwell" #p16300 that's what the hardware could work with in theory. However, to connect to the power network in the UK, it needs to be compliant with the limits in the UK regs. 263V max. 263V is set in software to ensure safe operation with other equipment.
Okay that makes sense, thanks for your replies.
[unknown] ,
Thanks, I called them and they admitted there is an issue in the area and they are working on it.
So the DNO have acknowledged they know about the problem. Have you got it in writing?
Does that mean they will provide compensation for household appliances that have expired due to the significant over voltage?
Has anyone had any experience of this circumstance?
[unknown] ,
Thanks, I called them and they admitted there is an issue in the area and they are working on it.
So the DNO have acknowledged they know about the problem. Have you got it in writing?
Does that mean they will provide compensation for household appliances that have expired due to the significant over voltage?
Has anyone had any experience of this circumstance?
The GE inverters will have a 'country' setting, so the relevant regulatory limits will be applied regardless of the full range capability.
[unknown] When I reported a network overvoltage to my DNO (Western Power) they were all over it very quickly, needed to change some transformer taps further back in the network, done in less than 2 hours. Their Customer Service people even 'phoned me back to let me know it had been sorted.
[unknown]
I have knowledge here.
The DNO will provide compensation or repair for electrical equipment damaged by the network.
The item has to be inspected and a report of the damage supplied to them. the damage found clearly needs to be that which could have feasibly been affected by the fault.
Those charged with repairing do know what could have been damaged.
Each DNO will have an organisation they use to collect and inspect items and will arrange that if there is a record on the network of a potential fault.
In the south west this was or could still be a firm called Pace.
I would be very surprised if you even managed to get an inspection with the over voltage value you state.
Simon_C Yes in fact they were offering to repair/replace damaged equipment. Luckily we had no damage.