EP 1982200 A2 20081022 - METHOD AND DEVICE FOR DETECTING GROUND FAULTS IN A SUPPLY CABLE
Title (en)
METHOD AND DEVICE FOR DETECTING GROUND FAULTS IN A SUPPLY CABLE
Title (de)
VERFAHREN UND EINRICHTUNG ZUR ERDSCHLUSSERFASSUNG IN EINEM VERSORGUNGSKABEL
Title (fr)
PROCÉDÉ ET DISPOSITIF POUR DÉTECTER UNE MISE À LA TERRE D'UN CÂBLE D'ALIMENTATION
Publication
Application
Priority
- EP 2007051012 W 20070202
- DE 102006006350 A 20060207
Abstract (en)
[origin: WO2007090791A2] The invention relates to a method for detecting a ground fault of a multi-strand energy supply cable (3) carrrying alternative current. The method consists in determining an average potential of the energy supply cable, entering the average potential or a variable derived from said average potential into an evaluation unit (7) and comparing the average potential or the variable derived form the average potential with a threshold value by means of said evaluation unit (7). The aim of the invention is to provide a method allowing the detection of grounding faults in a reliable and less expensive manner. To achieve this, the method is designed in such a way that a grounding fault is indicated once the value falls below the threshold.
IPC 8 full level
G01R 31/02 (2006.01)
CPC (source: EP US)
G01R 31/52 (2020.01 - EP US)
Citation (search report)
See references of WO 2007090791A2
Designated contracting state (EPC)
AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HU IE IS IT LI LT LU LV MC NL PL PT RO SE SI SK TR
DOCDB simple family (publication)
DE 102006006350 A1 20070816; CN 101371149 A 20090218; EP 1982200 A2 20081022; JP 2009526203 A 20090716; US 2009167314 A1 20090702; WO 2007090791 A2 20070816; WO 2007090791 A3 20071115
DOCDB simple family (application)
DE 102006006350 A 20060207; CN 200780002985 A 20070202; EP 07726289 A 20070202; EP 2007051012 W 20070202; JP 2008552813 A 20070202; US 27866707 A 20070202