EP 2082248 A4 20120314 - APPARATUS FOR MEASURING IMPEDANCE OF TROLLEY LINE AND METHOD OF LOCATING FAULT USING THE SAME
Title (en)
APPARATUS FOR MEASURING IMPEDANCE OF TROLLEY LINE AND METHOD OF LOCATING FAULT USING THE SAME
Title (de)
VORRICHTUNG ZUR MESSUNG DER IMPEDANZ EINER HÄNGELEITUNG UND VERFAHREN ZUM FINDEN EINES FEHLERS UNTER VERWENDUNG DIESER
Title (fr)
APPAREIL POUR MESURER L'IMPÉDANCE D'UNE LIGNE DE TROLLEY ET PROCÉDÉ POUR LOCALISER UN DÉFAUT AU MOYEN DUDIT APPAREIL
Publication
Application
Priority
- KR 2007001708 W 20070409
- KR 20060091608 A 20060921
Abstract (en)
[origin: WO2008035841A1] The present invention provides an apparatus for measuring the impedance of a trolley catenary. The apparatus is mounted on a crossing which includes a pantagraph connected to a trolley line and a ground part connected through a rail and which is movable on the rail. The apparatus includes a power analysis unit (P) disposed between the pantagraph and the ground part and adapted to measure a voltage, a current and a power factor; and a current limiter (110) connected in series between a rear end of the power analysis unit and the ground part. As described above, the present invention is advantageous in that it can measure the impedance of a trolley catenary by adjusting an actual fault current, which is currently being activated.
IPC 8 full level
G01R 31/08 (2006.01); B60L 3/00 (2006.01); G01R 27/16 (2006.01); G01R 27/18 (2006.01)
CPC (source: EP KR)
B60L 3/0069 (2013.01 - EP); G01R 27/00 (2013.01 - KR); G01R 27/08 (2013.01 - EP); G01R 27/16 (2013.01 - EP); G01R 31/08 (2013.01 - KR); G01R 31/086 (2013.01 - EP); B60L 2200/26 (2013.01 - EP); G01R 31/008 (2013.01 - EP)
Citation (search report)
- [A] EP 0555946 A2 19930818 - ELPRO AG [DE]
- [A] JP H08248074 A 19960927 - RAILWAY TECHNICAL RES INST, et al
- [A] JP 2003072431 A 20030312 - TOKAI RYOKAKU TETSUDO KK, et al
- [A] KR 20060018597 A 20060302 - P & C TECHNOLOGIES CO LTD [KR]
- [A] JP H07128374 A 19950519 - MEIDENSHA ELECTRIC MFG CO LTD
- See references of WO 2008035841A1
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 MT NL PL PT RO SE SI SK TR
DOCDB simple family (publication)
WO 2008035841 A1 20080327; EP 2082248 A1 20090729; EP 2082248 A4 20120314; KR 100821702 B1 20080414; KR 20080026712 A 20080326
DOCDB simple family (application)
KR 2007001708 W 20070409; EP 07745871 A 20070409; KR 20060091608 A 20060921