Does anyone has Idea about best practices for grounding in PV Inverters on DC side?

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Kaushik Makwana

Is grounding mandatory on DC Side ? However you can see the relevant standards.

Isolated DC should not be a problem if the overall support systems (Protection, SCADA) do not demand the same.

Aalok Bhatt

Thank you for the answer Kaushikbhai. Actually it is market demand for DC negative grounding. However, the problem is circulating current due to this grounding. Therefore, searching some materials.

Anupsingh Chandel

Mostly the DC link grounding is done for ciculating current. If you can manage the DC voltage unbalance, your circulating current will be quite low.

In my previous project on solar inveter we have seen competitors offering DC link negative grounding but never tested.