fromport
Solar Addict
I have been looking at the luxpower/eg4 18kPV12k inverter hookup schematics and I don't get the example with the supply side hookup;
Page 33 of the eg4 2.1 version manual:
I erased some of the information that is imo not relevant.
The setup is currently: the manual transfer switch is set to pass by so the main breaker panel is fed by the manual transfer switch -> 200 amp main service breaker coming from the 200 amp rated meter (socket).
Because of the supply side setup, isn't it _possible_ (however unlikely) that 200 amps will be pulled from the grid from the main panel while at the same time it is possible that the AIO inverter starts to charge it's battery from the grid : 200amps @58 volts = 11,600 watts / 240 volt AC (ignoring efficiency battery charger) = 48 amps extra at 240 volt.
That with the full load of the main breaker panel, technically 248 amps could be flowing through the meter (socket) that is only rated for 200 amps.
That is 124% of nominal load, and how ever small of chance that that load is ever pulled IRL, shouldn't in this case the 200amp main breaker be de-rated to 150 amps?
Just trying to understand why this is suggested.
I hope to have an "aha" moment and say "of course, why didn't I think of that ?"
Page 33 of the eg4 2.1 version manual:
I erased some of the information that is imo not relevant.
The setup is currently: the manual transfer switch is set to pass by so the main breaker panel is fed by the manual transfer switch -> 200 amp main service breaker coming from the 200 amp rated meter (socket).
Because of the supply side setup, isn't it _possible_ (however unlikely) that 200 amps will be pulled from the grid from the main panel while at the same time it is possible that the AIO inverter starts to charge it's battery from the grid : 200amps @58 volts = 11,600 watts / 240 volt AC (ignoring efficiency battery charger) = 48 amps extra at 240 volt.
That with the full load of the main breaker panel, technically 248 amps could be flowing through the meter (socket) that is only rated for 200 amps.
That is 124% of nominal load, and how ever small of chance that that load is ever pulled IRL, shouldn't in this case the 200amp main breaker be de-rated to 150 amps?
Just trying to understand why this is suggested.
I hope to have an "aha" moment and say "of course, why didn't I think of that ?"