Fault detection and location system for power transmission and distribution lines
US5343155A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Dec 20, 1991 |
| Grant date | Aug 30, 1994 |
| Priority date | — |
| Expiry date | Dec 20, 2011 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH02H1/0007
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
A system for detecting and locating faults on a power system includes the e of fault detection and transmitting devices on each pole of the system. The fault detection apparatus includes detecting coils mounted on the static line on either side of each pole, and a third detecting coil positioned so as to detect an orthogonal magnetic flux due to a phase-to-phase fault. A microprocessor on each pole analyzes the type of fault from the output of the three coils, and transmits the identification of the pole and pertinent fault data, when appropriate, to a repeater system. Thus, fault information from an entire power system can be fed through the repeater system into a central location.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.