Electronic tripping device with phase reconstruction and circuit breaker with such a trip device

The breaker has a processor (1) that receives signals (Is1, Is3) from current transducers, which are processed (11,12) to fi current amplitudes, which are used to compute (15) signals representing phase shift between the transducer signals. These are us to compute an estimate of current in the unmea...

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Bibliographic Details
Main Author BOUDAUD, DOMINIQUE
Format Patent
LanguageEnglish
French
German
Published 17.02.2016
Subjects
BASIC ELECTRIC ELEMENTS
CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
ELECTRIC SWITCHES
ELECTRICITY
EMERGENCY PROTECTIVE CIRCUIT ARRANGEMENTS
EMERGENCY PROTECTIVE DEVICES
GENERATION
RELAYS
SELECTORS
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Summary:The breaker has a processor (1) that receives signals (Is1, Is3) from current transducers, which are processed (11,12) to fi current amplitudes, which are used to compute (15) signals representing phase shift between the transducer signals. These are us to compute an estimate of current in the unmeasured phase. This is used with the measured currents to determine circuit breaker operation.
Bibliography:Application Number: EP20000410020