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Sunsynk Grid disconnect with no cut in grid supply

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Hello, this has happened a few time over the last few days. My Sunsynk Inverter sends a Grid Disconnect notification and then a minute or so later sends a Grid Connection restored notification. However, there is not interruption in the Grid Supply. The latest example is shown below where the Grid Power is 0 but frequency & voltage etc. seems normal.

Does anyone know what the explanation for this could be? 

Many thanks in advance

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10 hours ago, rgt.dnl said:

Hello, this has happened a few time over the last few days. My Sunsynk Inverter sends a Grid Disconnect notification and then a minute or so later sends a Grid Connection restored notification. However, there is not interruption in the Grid Supply. The latest example is shown below where the Grid Power is 0 but frequency & voltage etc. seems normal.

Does anyone know what the explanation for this could be? 

Many thanks in advance

Mine does it is as well from time to time, last 3 days ago. No cause for concern. A guess is it's not happy with some aspect of the quality of power coming in and disconnects until it's happy again

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