Differential detection toroid and device

In order to improve the reliability of differential protection and reduce mistrip, a detection toroid is improved. According to the invention, different methods are provided for homogenizing magnetic flux in the toroid (2) at ends (8) of a band (4) made of magnetic material, in particular, a wedge p...

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Hauptverfasser: KEDOUS-LEBOUC AFEF, CHILLET CHRISTIAN, COLIN BRUNO, BUFFAT SEBASTIEN, MAS PATRICK
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creator KEDOUS-LEBOUC AFEF
CHILLET CHRISTIAN
COLIN BRUNO
BUFFAT SEBASTIEN
MAS PATRICK
description In order to improve the reliability of differential protection and reduce mistrip, a detection toroid is improved. According to the invention, different methods are provided for homogenizing magnetic flux in the toroid (2) at ends (8) of a band (4) made of magnetic material, in particular, a wedge portion (20) and slots (30, 40) are arranged on the end parts (18) of the band (4), for example, on the whole turn (61) on the end parts (18) of the band (4).
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language chi ; eng
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subjects BASIC ELECTRIC ELEMENTS
CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
ELECTRIC SWITCHES
ELECTRICITY
EMERGENCY PROTECTIVE CIRCUIT ARRANGEMENTS
EMERGENCY PROTECTIVE DEVICES
GENERATION
INDUCTANCES
MAGNETS
RELAYS
SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
SELECTORS
TRANSFORMERS
title Differential detection toroid and device
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