G - Physics – 01 – R
Patent
G - Physics
01
R
324/58.03
G01R 31/08 (2006.01)
Patent
CA 1056907
INVENTORS: OTTO LANZ and MICHAEL VITINS INVENTION: PROCESS AND APPARATUS FOR LOCATING FAULTS ON A LINE ABSTRACT OF THE DISCLOSURE A process and apparatus for locating faults on a line, wherein at least one signal (travelling-wave signal) associated with a travelling wave on the line and corresponding to the temporal progression thereof at the measuring location is formed from the voltage and current at a measuring location. There are formed travelling-wave signals corresponding in number to the phases or conductors in the line and decoupled from one another in relation to the line inductances and line capacitances. At least two time-integrals are formed with these travelling-wave signals or signals derived therefrom as integrands, each time integral being associated with one direction of wave-propagation on the line. These time- integrals are processed by an evaluating function which characterises by way of its sign and magnitude the direction and distance of the fault from a predetermined reference location on the line, which function corresponds to a relationship prevailing at the fault location between the travelling waves proceeding in opposite directions on the line.
250639
Lanz Otto
Vitins Michael
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