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inverter

Anti-Islanding

Inverter protection that disconnects from the grid when an islanded condition is detected, for safety.

Anti-islanding protection detects when an inverter is operating into an islanded (disconnected from utility) portion of the grid and disconnects within a specified timeframe. Required by safety standards (IEC 62116, IEEE 1547) to protect utility line workers and prevent damage. Grid-forming inverters require careful coordination with anti-islanding logic.

Related terms

  • FRT Inverter capability to remain connected to the grid during voltage disturbances
  • Grid-Following Inverter Conventional inverter that senses grid voltage and injects power, requires an ex