EP 3430412 A1 20190123 - MEASURING APPARATUS WITH A MEASURING RESISTOR AND OPTICAL SIGNAL TRANSMISSION
Title (en)
MEASURING APPARATUS WITH A MEASURING RESISTOR AND OPTICAL SIGNAL TRANSMISSION
Title (de)
MESSVORRICHTUNG MIT MESSWIDERSTAND UND OPTISCHER SIGNALÜBERTRAGUNG
Title (fr)
DISPOSITIF DE MESURE À RÉSISTANCE DE MESURE ET TRANSMISSION OPTIQUE DE SIGNAUX
Publication
Application
Priority
EP 2016058757 W 20160420
Abstract (en)
[origin: WO2017182070A1] The invention relates to a measuring apparatus (1) for measuring an electrical current in an electrical line (3) with a measuring resistor (2) which can be inserted into the electrical line. The invention is distinguished by an electro-optical unit (44) which is arranged at high-voltage potential and is intended to convert a current-dependent electrical measurement signal produced at the measuring resistor (2) into an optical measurement signal, an optical transmission line (5) for transmitting the optical measurement signal from the high-voltage potential to earth potential level, and an opto-electrical unit (8) which is arranged close to the earth potential and is intended to convert the transmitted optical measurement signal into an electrical output signal. The invention also relates to a method for measuring current by means of the measuring apparatus and to a converter arrangement having a converter and the measuring apparatus.
IPC 8 full level
G01R 15/14 (2006.01); G01R 19/00 (2006.01)
CPC (source: EP)
G01R 15/14 (2013.01); G01R 15/146 (2013.01)
Citation (search report)
See references of WO 2017182070A1
Designated contracting state (EPC)
AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR
Designated extension state (EPC)
BA ME
DOCDB simple family (publication)
WO 2017182070 A1 20171026; CN 210119519 U 20200228; EP 3430412 A1 20190123
DOCDB simple family (application)
EP 2016058757 W 20160420; CN 201690001651 U 20160420; EP 16719814 A 20160420