Friends:
Below is a quote from the Sunny Island manual. I am interested if anyone can interpret this for me, please. If there are no additional fuses installed between the generator or utility grid and the Sunny Island, the Sunny Island knows whether it has a connection to the utility grid/to the generator. The Sunny Island can then draw current from the utility grid/from the generator. If there are additional fuses or switches installed between the Sunny Island and the utility grid/ the generator, the Sunny Island cannot determine whether fuses or switches are separated or whether there is no voltage available from the utility grid/the generator. In either case the Sunny Island cannot charge its battery and the loads that are in operation will discharge the Sunny Island battery. Check the additional fuses and switches regularly in order that the Sunny Island battery only discharges when there is no voltage available from the utility grid/the generator. Here is what I think it means: if there is additional power distribution connected to the Sunny Island AC input, those loads may be powered by inversion, inadvertently depleting the batteries. What is unusual here is that with a standard off-grind inverter, loads connected to the input side can never be powered by the batteries, but they can be with an AC coupled inverter? Is this correct? Also, I have not found it in the manual although I have looked: Can the Sunny Island provide generator support (sync to and provide additional power to loads that exceed the capability of the generator? Thank you all very much. William Miller
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