SMA Solar Technology AG Electrical Connection
Installation Guide SMC9-11TLRP-IEN100640 41
•PhaseGuard
This operating mode allows to implement a three-phase grid voltage monitoring.
– If one of the three inverters indicates a grid voltage fault and stops feeding in, the other
two inverters also disconnect from the grid automatically.
– If one of the three inverters indicates a device fault and stops feeding in, the other two
inverters are not affected and continue to feed in at full power.
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