EP 1328818 A2 20030723 - ARRANGEMENT FOR POTENTIAL-FREE MEASUREMENT OF HIGH CURRENTS

Title (en)

ARRANGEMENT FOR POTENTIAL-FREE MEASUREMENT OF HIGH CURRENTS

Title (de)

ANORDNUNG ZUR POTENTIALFREIEN MESSUNG HOHER STRÖME

Title (fr)

DISPOSITIF POUR LA MESURE EXEMPTE DE POTENTIEL DE COURANTS ELEVES

Publication

EP 1328818 A2 20030723 (DE)

Application

EP 01987882 A 20011015

Priority

DE 10051138 A 20001016
EP 0111903 W 20011015

Abstract (en)

[origin: WO0233424A2] The invention relates to an arrangement comprising a current sensor, containing a bypass-branch (3) which is electrically connected in a parallel to a defined section of the current conductor (1) and a current probe (5) for measuring the current in the bypass-branch (3), a fixed dividing ratio for the current passing therethrough existing between the bypass-branch (3) and the bridged section of the current conductor (1). The dividing ratio and the electric resistance of the bypass-branch (3) are relatively high in comparison to the resistance of the bridged section of the current conductor (1), whereby the contact resistances (Rk) between the current conductor (1) and the bypass-branch (3) are negligible in relation to the resistance (RBY) of the bypass-branch (3).

IPC 1-7

G01R 15/14

IPC 8 full level

G01R 15/18 (2006.01)

CPC (source: EP)

G01R 15/185 (2013.01)

Citation (search report)

See references of WO 0233424A2

Citation (examination)

US 4182982 A 19800108 - LOCKE PHILIP F JR [US], et al
DE 3133042 A1 19820401 - AISIN SEIKI [JP]
WO 9836283 A1 19980820 - VACUUMSCHMELZE GMBH [DE], et al
DE 19844726 A1 20000413 - VACUUMSCHMELZE GMBH [DE]
DE 4229948 A1 19940310 - VACUUMSCHMELZE GMBH [DE]

Designated contracting state (EPC)

AT BE CH DE FR GB LI

DOCDB simple family (publication)

WO 0233424 A2 20020425; WO 0233424 A3 20021107; DE 10051138 A1 20020502; EP 1328818 A2 20030723

DOCDB simple family (application)

EP 0111903 W 20011015; DE 10051138 A 20001016; EP 01987882 A 20011015