Patent ID: 11929608
Assignee: SCHWEITZER ENGINEERING LABORATORIES, INC.
Field: Electrical machinery, apparatus, energy (Electrical engineering)
Classification: CPC H | IPC H

Claim 8:
9. A fault current detector configured to:
measure a first power flow associated with a point of common coupling breaker;
determine that the first power flow is below a threshold;
provide instructions to increase an operating frequency of an inverter higher than an initial operating frequency in response to determining that the first power flow is below the threshold;
measure a second power flow associated with the point of common coupling breaker;
determine that the second power flow is equal to or above the threshold based at least in part on increasing the operating frequency of the inverter; and
provide instructions to open the point of common coupling breaker in response to determining that the second power flow is equal to or above the threshold based at least in part on increasing the operating frequency of the inverter.