EP 1904862 A1 20080402 - A METHOD OF EARTH FAULT IDENTIFICATION AND LOCATION IN THREE-PHASE ELECTRICAL NETWORK
Title (en)
A METHOD OF EARTH FAULT IDENTIFICATION AND LOCATION IN THREE-PHASE ELECTRICAL NETWORK
Title (de)
VERFAHREN ZUR ERDFEHLERIDENTIFIKATION UND -LOKALISIERUNG IN EINEM ELEKTRISCHEN DREIPHASENNETZWERK
Title (fr)
PROCEDE D'IDENTIFICATION ET DE LOCALISATION DES DEFAUTS A LA TERRE DANS UN RESEAU ELECTRIQUE TRIPHASE
Publication
Application
Priority
- LT 2006000006 W 20060718
- LT 2005067 A 20050720
Abstract (en)
[origin: WO2007011196A1] The invention relates to the area of electrical power network and may be applied to a method of permanent or short-term earth fault identification in a three-phase electrical distribution network and distance determination to the fault place. Better accuracy for the earth fault place location is achieved by performing registrations not longer than 100 µs and with time intervals smaller than 100 ns, thus decreasing the influence of noises of lower than 10 kHz frequency. The distance between the beginning of the feeder's section and earth fault place is defined by minimising the goal function f <SUB>2</SUB>,
IPC 8 full level
G01R 31/08 (2006.01)
CPC (source: EP)
G01R 31/086 (2013.01); Y04S 10/52 (2013.01)
Citation (search report)
See references of WO 2007011196A1
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)
WO 2007011196 A1 20070125; WO 2007011196 B1 20070329; EP 1904862 A1 20080402; LT 2005067 A 20060227; LT 5337 B 20060425; RU 2008105543 A 20090827
DOCDB simple family (application)
LT 2006000006 W 20060718; EP 06769357 A 20060718; LT 2005067 A 20050720; RU 2008105543 A 20060718