Voltage measuring device

Methods and apparatus for measuring the voltage of at least one conductor (121, 122, 123) of an electrical power cable (10) comprise providing a container (22) made from a conductive material around a portion of the cable and at least one electric field sensor (301, 302, 303, 304) between the contai...

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Bibliographic Details
Main Authors Gaborit Gwenaël, Grau Anne, Duvillaret Lionel, Schmitt Gilbert, Lecoche Frédéric
Format Patent
LanguageEnglish
Published 07.11.2017
Subjects
MEASURING
MEASURING ELECTRIC VARIABLES
MEASURING MAGNETIC VARIABLES
PHYSICS
TESTING
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Summary:Methods and apparatus for measuring the voltage of at least one conductor (121, 122, 123) of an electrical power cable (10) comprise providing a container (22) made from a conductive material around a portion of the cable and at least one electric field sensor (301, 302, 303, 304) between the container and the cable and bringing the container to a constant potential and measuring the electric field with a sensor. The voltage is determined by comparing the measured electric field with electric fields simulated for a plurality of configurations of punctual electric charges.
Bibliography:Application Number: US201414894038