Digital fault-location calculation system
US4107778A · kind A · utility
Assignees
Inventors
Key dates
| Filing date | Feb 15, 1977 |
| Grant date | Aug 15, 1978 |
| Priority date | — |
| Expiry date | Feb 15, 1997 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01R31/088
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
Provided is a digital fault-location calculation system which comprises first means for obtaining data including voltage and current information of a power transmission system subjected to fault-location calculation, a computer, and second means coupled between the first means and the computer for transferring the obtained data to the computer from the first means. The computer has at least two functions, one of which is the detection of occurrence of a faultin the transmission line and the other is the calculation of distance from the point of installation of the system to the fault point, in response to the data transferred through the second means and in accordance with predetermined processes. The distance to the fault point is computed by the other function of the computer only upon the detection of occurrence of a fault in the transmission line by the one function of the same.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.