SMA sunny boy 2000hf-us, Руководство по установке

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SMA America, LLC Troubleshooting
Installation Guide SB20_25_30HFUS-eng-IUS113711 89
Example:
The ground fault is between the second and third module in this case.
4. The installer must remedy the ground fault in the respective string.
5. Close the SMA DC-Disconnect (see section 8.3 ”Closing the SMA DC-Disconnect” (page 67)).
6. Commission the Sunny Boy (see section 7 ”Commissioning” (page 63)).
☑ The PV array has been checked for ground faults.
11.2 Correct Grounding Fuse Fault
Proceed as follows to correct the error < Ground fuse fault - check ground fuse >:
7. Disconnect the Sunny Boy from voltage sources (see section 8.1 ”Disconnect the Sunny Boy
from Voltage Sources” (page 65)).
8. Open the SMA DC Disconnect (see section 8.2 ”Open SMA DC Disconnect” (page 66)).
9. Make a note of the type of generator grounding (" − " or " + ").
10. Remove the SMA Plug-in Grounding. Turn it in counterclockwise direction and then pull it down.
11. Check the PV array for a ground fault (see section 11.1 ”Checking the PV array for Ground
Fault” (page 88)).
12. Close the SMA DC-Disconnect (see section 8.3 ”Closing the SMA DC-Disconnect” (page 67)).
WARNING
High voltages in the PV plant. Death or serious injury due to electric shock.
• Only qualified personnel must carry out the installation of PV modules.