Method for locating a fault on a line near to a measuring location with the aid of substitute signals
US4063166A · kind A · utility
18Cited by
9References
4Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | May 24, 1976 |
| Grant date | Dec 13, 1977 |
| Priority date | — |
| Expiry date | May 24, 1996 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH02H7/265
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
A method for locating a fault on a line wherein starting from a fault-free operating state of the line there is derived a substitute-measurement voltage signal which corresponds at least approximately to a frequency component of a line voltage both in magnitude and phase and is approximately independent of breakdown of the line voltage at least for a limited time interval. The substitute-measurement voltage signal is used to form at least one substitute-traveling wave signal and a substitute-evaluation signal.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.