High impedance fault location in DC distribution systems
US9791495B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Dec 31, 2015 |
| Grant date | Oct 17, 2017 |
| Priority date | — |
| Expiry date | Jan 13, 2036 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY04S10/52
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
Unique systems, methods, techniques and apparatuses of fault location in DC power distribution systems are disclosed. One exemplary embodiment is a DC power distribution system comprising at least one DC power distribution network and at least two protective devices operatively coupled to the DC power distribution network. Each protective device is structured to sense one or more electrical characteristics associated with the DC power distribution network and to controllably interrupt current through the DC power distribution line. A control system is structured to determine the location of a high impedance fault between two of the protective devices using one or more electrical characteristics sensed by the two protective devices to calculate the inductance and resistance of the portion of the DC power distribution line between one of the protective devices and the high impedance fault.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.