Method for coordinating switches in multiple reclosers in a distribution feeder line in response to detection of a fault
US11081878B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Aug 26, 2019 |
| Grant date | Aug 3, 2021 |
| Priority date | — |
| Expiry date | Apr 27, 2040 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH02H3/063
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
A method for controlling multiple switching devices in an electrical power distribution network in response to detecting a fault. The method determines that a fault current is present, and opens a switch in each of the switching devices in response thereto. The method then initiates a current pulse in the switch in a farthest upstream switching device for a first pulse duration time, closes the switch in the farthest upstream recloser if no fault current is detected during the first pulse duration temporarily changes the TCC curve of the farthest upstream recloser to a second TCC curve that is an instantaneous or near instantaneous TCC curve, and initiates a current pulse in the switch in a next farthest upstream switching device that is downstream of the farthest upstream switching device after the switch in a farthest upstream switching device is closed.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.