Directional detection of a fault in a network of a grounding system with compensated or insulated neutral point

In a voltage power system, especially a power system with a compensated or insulated neutral point, the positioning of a single-phase fault according to the present invention is based on that: the fault is detected through the change of a zero sequence voltage (V0); in a continuous fault condition,...

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Bibliographic Details
Main Authors CUMUNEL PASCAL, VERNEAU GUILLAUME
Format Patent
LanguageChinese
English
Published 11.06.2014
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:In a voltage power system, especially a power system with a compensated or insulated neutral point, the positioning of a single-phase fault according to the present invention is based on that: the fault is detected through the change of a zero sequence voltage (V0); in a continuous fault condition, the phase difference is determined directionally, especially through the symbol of an angle or product between the derivative (dI0/dt) of the zero sequence voltage and the zero sequence voltage (V0).
Bibliography:Application Number: CN20131757374