Detection of the position of a fault on an electric link
US4325098A · kind A · utility
7Cited by
3References
8Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Oct 22, 1979 |
| Grant date | Apr 13, 1982 |
| Priority date | — |
| Expiry date | Oct 22, 1999 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH02H7/267
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
A method for the directional detection of faults on power transmission lines is described. According to one embodiment applied to a link comprising several lines in parallel each provided, towards each of their respective ends, with a directional relay, the indications from all of these relays in response to the detection of a fault on the link, are combined to determine the presence or the absence of the fault on the lines under consideration. In particular, this method is applicable to lines compensated with series capacitors at the beginning of the line.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.