IDENTIFICATION AND DIRECTIONAL DETECTION OF A DEFECT IN A THREE-PHASE NETWORK

The device (15) has a current representative parameter processing unit (30) with a computing unit (44) to compute current resulting from sum of parameter and resultant frequency analysis units (46, 48) with comparison of zero harmonic components (I0pDC) and two harmonic components (I0p 2F) with resp...

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Bibliographic Details
Main Authors Verneau, Guillaume, Cumunel, Pascal
Format Patent
LanguageEnglish
French
German
Published 27.06.2018
Subjects
CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
ELECTRICITY
EMERGENCY PROTECTIVE CIRCUIT ARRANGEMENTS
GENERATION
MEASURING
MEASURING ELECTRIC VARIABLES
MEASURING MAGNETIC VARIABLES
PHYSICS
TESTING
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Summary:The device (15) has a current representative parameter processing unit (30) with a computing unit (44) to compute current resulting from sum of parameter and resultant frequency analysis units (46, 48) with comparison of zero harmonic components (I0pDC) and two harmonic components (I0p 2F) with respect to proper frequency of a three-phase network. Activation units (32) activate the processing units based on a defect occurrence detection signal (D) in the network, and interpretation units (40) interpret processing results with the processing unit to determine if defect is biphasic. Independent claims are also included for the following: (1) a short circuit default indicator comprising current sensors arranged on each phase conductor (2) a method for identifying defect in a three-phase network (3) a method for identifying and relative localization of defect in a three-phase network (4) a method for protecting a current line.
Bibliography:Application Number: EP20110354008