All Sungrow’s inverters are compliant with the standard AS/NZS 4777 related to grid protection requirements. Those standards dictate for example, that if the line voltage or frequency goes outside pre-determined parameters, the inverter must shut down and decouple from the grid. [pdf]
[FAQS about Sungrow inverter unit voltage protection]
The GT Series is a true VFI (Voltage & Frequency Independent) on-line double conversion, transformerless, intelligent and high performance UPS. This UPS provides critical power protection to suit a wide range of IT Networks, Telecom and other applications. [pdf]
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