Grounding Of Inverter - Sungrow SG2KTL-S User Manual

5 Electrical Connection
Check the positive and negative polarity of the PV cells. After confirmation,
you can insert the DC connectors into the input terminals on the bottom of
the inverter.
For the same MPPT, reverse connection of a single string is prohibited. A
permanent failure of the system or inverter may follow if otherwise.
Plug the positive and negative DC connectors into corresponding terminals
Step 3
until there is an audible click.
* Image shown here is for reference only. Actual product you receive may differ.

5.6 Grounding of Inverter

Because of the transform-less design of the inverter, DC positive pole and
DC negative pole are not permitted to be grounded. A permanent destroy to
the inverter may follows if otherwise.
All non-current carrying exposed metal parts of the equipment and other
enclosures in the PV power system should be grounded (e.g., PV arrays frame and
inverter enclosure).
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