Operating Procedure with Generators with Autostart Function

The generator management system requests the generator.

The Sunny Island starts the generator.

Open, the stand-alone grid is not connected to the generator.

The generator starts.

The generator voltage builds up.

The generator management system measures the time until the generator voltage is within the configured thresholds for voltage and frequency. If a maximum time is exceeded, the generator management system terminates the generator start.

The generator voltage is within the configured thresholds for voltage and frequency.

The generator management system starts the warm-up time.

The warm-up time is running.

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The warm-up time ends.

The Sunny Island synchronizes the stand-alone grid with the generator voltage.

The stand-alone grid is synchronized.

The Sunny Island connects the stand-alone grid to the generator.

Closed, the stand-alone grid is connected to the generator.

The stand-alone grid is connected to the generator.

The generator feeds current into the stand-alone grid.

The generator management system starts the minimum run time.

The minimum run time is running.

Even if the generator management system no longer requests the generator, the stand-alone grid remains connected to the generator.

The minimum run time ends.

If the generator management system continues to request the generator, the stand-alone grid remains connected to the generator.

The generator management system no longer requests the generator.

The Sunny Island supplies the stand-alone grid and carries out load-free disconnection of the generator from the stand-alone grid.

Open, the stand-alone grid is not connected to the generator.

The generator management system starts the power-down time.

The power-down time is running.

During the power-down time, the generator management system cannot request the generator again and the Sunny Island cannot reconnect the stand-alone grid to the generator.

The power-down time ends.

The Sunny Island stops the generator.

The generator management system starts the minimum stop time.

The minimum stop time is running.

The Sunny Island cannot start the generator. It is also not possible to perform a manual start at the Sunny Island.

The generator management system cannot request the generator.

The minimum stop time ends.

The generator management system can request the generator.

The generator can be started at the Sunny Island.