SMA SUNNY BOY 10000TL?US, Руководство по установке

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Troubleshooting SMA America, LLC
56 SB8-10TL-IUS103811 Installation Guide
2. Measure the voltages between the plus and minus pole of a string against the ground potential.
If voltage is found, there is a ground fault in the corresponding string.
The approximate position of the ground fault can be determined from the ratio of the measured
voltages between plus against ground potential and minus against ground potential.
Example:
The ground fault is between the second and third module in this case.
3. Repeat step 2 for each string.
4. Fix the ground fault in the affected string.
5. Restart the Sunny Boy as described in section 8.2 ”Closing the Sunny Boy” (page 49).
NOTICE
Excessive voltages can destroy the measuring device.
• Only use measuring devices with a DC input voltage range up to at least 600 V.
DANGER
In case of a ground fault, the PV generator may carry high voltages.
Risk of lethal electric shock.
• Do not touch the frame of the PV generator.
• Do not touch PE.
• Wait until no voltage can be measured.
• Do not connect strings with ground faults to the Sunny Boy.