| 摘要 |
<p>The method involves detecting the onset of unintentional islanding in response to the change in the idle current. The change of the period length (9,10) of the alternating voltage (8) is detected with one or more time measurements. The idle current is changed at intervals. The unintended island formation is detected based on the variation of the idle current at intervals and the change in the period length of the alternating voltage. An independent claim is included for a device for detecting unintended island formation in alternating current network.</p> |
