SMA Solar Technology AG Electrical Connection
Installation Guide SMC9-11TLRP-IEN100640 43
•PowerGuard
This setting can be selected, if the entire PV plant consists of three 3 Sunny Mini Central inverters
only and in case of a failure the unbalanced load shall be limited to 5 kVA over a 10-minute
average.
– If one of the three inverters indicates a grid voltage fault or device fault and stops feeding
in, the other two inverters automatically limit their power to 5 kVA over a 10 minute average.
Unbalanced load limitation in case of SMC 9000TL-10/IT / 10000TL-10/IT /
11000TL-10/IT (applies exclusively to Italy)
In the case of the Sunny Mini Central 9000TL-IT /10000TL-IT / 11000TL-IT, the
unbalanced load is limited to 6 kVA.
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