Method for protection device to use pulse quantity to distinguish CT secondary side line breaking

Method for protection device to use pulse quantity to distinguish CT secondary side line breaking

A method for a protection device to use a pulse quantity to distinguish CT secondary side line breaking is disclosed. The method comprises the following main steps that the protection device collects a secondary current in real time during an operation process; when a pulse current is measured, prot...

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Hauptverfasser: WEI HUILI, WU YEKAI, HUANG SHAOFENG, ZHAO ZHIHONG, ZHANG YUEPIN, FAN WEI
Format: Patent
Sprache:eng
Schlagworte:
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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creator WEI HUILI
WU YEKAI
HUANG SHAOFENG
ZHAO ZHIHONG
ZHANG YUEPIN
FAN WEI
description A method for a protection device to use a pulse quantity to distinguish CT secondary side line breaking is disclosed. The method comprises the following main steps that the protection device collects a secondary current in real time during an operation process; when a pulse current is measured, protection is started; after a condition is satisfied, the CT secondary side line breaking is determined and then an alarm signal and an alarm message are emitted; protection without locking is performed. The method can be served as a supplement of an original CT secondary side line breaking criterion.
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subjects CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
ELECTRICITY
EMERGENCY PROTECTIVE CIRCUIT ARRANGEMENTS
GENERATION
MEASURING
MEASURING ELECTRIC VARIABLES
MEASURING MAGNETIC VARIABLES
PHYSICS
TESTING
title Method for protection device to use pulse quantity to distinguish CT secondary side line breaking
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