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Growatt SPF5000 ES PV power cuts at ~1700W

Adnano
in Inverters

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Hi folks,

My Growatt has the issue on PV, when the power consumption reached around 1700W from PV either feeding the output or charging the battery, it turns out to PV drop in power and voltage until 0V and 0W, few seconds and the process restart again, and so on.

The utility is working well, output is well, battery discharge is well. The problem is only in PV.

I debug the MPPT board, it had some teared wires due to humdity, so i fixed them out, and changed the TL072 to make sure the existing one is not broken. I tried out and still same issue.

What do you think the problem is coming from? Might it be from other parts in MPPT? or in the controller?

Thanks

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