inverter
FRT
Also known as: Fault Ride-Through, LVRT, HVRT
Inverter capability to remain connected to the grid during voltage disturbances rather than disconnecting immediately.
Fault Ride-Through (FRT) is the capability of an inverter to remain connected and operating during grid voltage disturbances (Low-Voltage Ride-Through, LVRT) or high-voltage events (HVRT). FRT requirements are codified in grid codes like IEEE 1547-2018 and EN 50549, and are essential to maintain grid stability when faults occur.
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