OP
Ramjam
We use SB400TL inverters all the time...
I think you've got the meter the wrong way around, easily done, the L&G meters come with 0.7kWh on from the factory
Having had a problem with an inverter I had a chat with SMA technical who explained... the inverters are made for a wholsaler and to a spec, if a UK wholsaler bought them direct then they would be set to G83 but often they are parallel improrted by european wholsalers and so have been configured to different settings. The correct procedure is to fire up the inverter and see what it's set to and if it's not G83 then switch off, set the dials and then power up again and it will re-configure. If can only re-configure with a good DC supply and it can confuse itself part way through, especially if you do it just as the sun is setting and the system shutting down then you need a grid guard code to reset it. We always set the dials prior to powering up and have had no problems.
We install SB4000TL and register them with SSE all the time, never had a problem. The inverter used is a matter for the DNO not the energy company so I wouldn't worry about SSE.
You can't change the grid voltage or frequency tollerance without prior authorisation from the DNO, it's a bad thing to do, I doubt they will let you.
Lets say a transformer is on a pole and as is often the case is tapped at the lowest setting but still producing 250volts. With volt drops this comes out at 245volts at the appliance, this is what the DNO want because in times of high demand you will still have plenty of volts.
Now lets take the inverter trying to push back into the grid, this is done by raising the voltage output from the inverter higher than the supply the inverter is now operating in the 250-253 range of G83 and at 253 the inverter will cut out due to over-voltage.
The transformers were designed to be one way devices and the taping range is always high and leaves little room for microgeneration. THe DNO can supply at 253volts if the want at which point inverters will not work. Our DNO (Western Power) will do their best to sort it out but they don't have to. It happened to one of our customers and the DNO installed a new transformer as it was near the end of it's projected life but it was a close call.
Oh and the SB4000TL-20 is a 20amp inverter and therefore technically falls outside of G83 hence SMA getting it G59 accredited but it can be capped at 16amps by the installer using a grid guard code if neccessary but most likely the DNO will accept that it has a G59 certificate and therefore even though it's over 16amps it is still safe to connect. We install under G83 and never have a problem.
Hope that helps?
I think you've got the meter the wrong way around, easily done, the L&G meters come with 0.7kWh on from the factory
Having had a problem with an inverter I had a chat with SMA technical who explained... the inverters are made for a wholsaler and to a spec, if a UK wholsaler bought them direct then they would be set to G83 but often they are parallel improrted by european wholsalers and so have been configured to different settings. The correct procedure is to fire up the inverter and see what it's set to and if it's not G83 then switch off, set the dials and then power up again and it will re-configure. If can only re-configure with a good DC supply and it can confuse itself part way through, especially if you do it just as the sun is setting and the system shutting down then you need a grid guard code to reset it. We always set the dials prior to powering up and have had no problems.
We install SB4000TL and register them with SSE all the time, never had a problem. The inverter used is a matter for the DNO not the energy company so I wouldn't worry about SSE.
You can't change the grid voltage or frequency tollerance without prior authorisation from the DNO, it's a bad thing to do, I doubt they will let you.
Lets say a transformer is on a pole and as is often the case is tapped at the lowest setting but still producing 250volts. With volt drops this comes out at 245volts at the appliance, this is what the DNO want because in times of high demand you will still have plenty of volts.
Now lets take the inverter trying to push back into the grid, this is done by raising the voltage output from the inverter higher than the supply the inverter is now operating in the 250-253 range of G83 and at 253 the inverter will cut out due to over-voltage.
The transformers were designed to be one way devices and the taping range is always high and leaves little room for microgeneration. THe DNO can supply at 253volts if the want at which point inverters will not work. Our DNO (Western Power) will do their best to sort it out but they don't have to. It happened to one of our customers and the DNO installed a new transformer as it was near the end of it's projected life but it was a close call.
Oh and the SB4000TL-20 is a 20amp inverter and therefore technically falls outside of G83 hence SMA getting it G59 accredited but it can be capped at 16amps by the installer using a grid guard code if neccessary but most likely the DNO will accept that it has a G59 certificate and therefore even though it's over 16amps it is still safe to connect. We install under G83 and never have a problem.
Hope that helps?
yes its heavy! yes its old technology!yes it may not be (but not far behind) the performance of the TL but u get NO HASSLE!!!!!!!!!!!!!!!SIMPLES!!!!!!!!!!!!!!!!!!!
