METHOD FOR MEASURING AN IMPEDANCE OF AN ELECTRIC CABLE, A COUPLER ARRANGEMENT AND USES THEREOF

The invention relates to a method for cable condition monitoring of an electric cable. The method comprises inducing a test current in the electric cable, measuring a resulting current in a measurement point of the electric cable by measuring a magnetic nearfield of the electric cable, measuring a r...

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Bibliographic Details
Main Authors KOLBERG, Sigbjørn, FALLET, Truls
Format Patent
LanguageEnglish
French
German
Published 23.10.2019
Subjects
MEASURING
MEASURING ELECTRIC VARIABLES
MEASURING MAGNETIC VARIABLES
PHYSICS
TESTING
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Summary:The invention relates to a method for cable condition monitoring of an electric cable. The method comprises inducing a test current in the electric cable, measuring a resulting current in a measurement point of the electric cable by measuring a magnetic nearfield of the electric cable, measuring a resulting voltage in the measurement point of the electric cable by measuring an electric nearfield of the cable, calculating an impedance of the electric cable based on the resulting current and the resulting voltage by a line resonance analysis system, and analysing the impedance by the line resonance analysis system establishing a condition of the electric cable. A coupler arrangement providing a non-galvanic connection to the cable is also disclosed.
Bibliography:Application Number: EP20170880709