Fault location in a multi-terminal network

Details Fault location in a multi-terminal network Fault location in a multi-terminal network

G - Physics

01

R

G01R 31/08 (2006.01)

Patent

CA 2045884

A procedure and means for fault locating in a multi-terminal network consisting of a main power line having power lines leading from a number of tap points (A l, --A n) and where all end stations are provided with terminals for measuring current and voltage the readings then being combined in a common calculation and evaluation unit (1). With knowledge of the characteristic data the voltages in all the tap points can be calculated. By comparing the calculated voltage in a tap point departing from values measured in the terminals of adjacent line sections or from calculated values in the nearest tap points, it can be determined whether a fault exists in any line section.

Cette invention concerne une procédure et un moyen de localisation des défauts dans un réseau multiterminal composé d'une alimentation principale et de lignes de distribution partant d'un certain nombre de points de branchement (A l, --A n) et dont tous les postes de fin de ligne sont équipés de terminaux de mesurage de l'intensité et de la tension du courant, les valeurs lues y étant regroupées dans une même unité de calcul et d'évaluation (1). A partir de ces données, il est possible de calculer la tension à chacun des points de branchement. En comparant la tension calculée à un point de branchement aux valeurs mesurées aux terminaux de tronçons de ligne adjacents ou aux valeurs calculées aux points de branchement les plus proches, on peut déterminer si l'un quelconque des tronçons présente un défaut.

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