IMPROVEMENTS INTRODUCED IN MONITORING SYSTEM OF DIELECTRIC STATE OF HIGH VOLTAGE EQUIPMENTS WITH CAPACITIVE INSULATION, SUCH AS CONDENSIVE BUSHINGS, CURRENT TRANSFORMERS, POTENTIAL TRANSFORMERS AND SIMILAR

A system and method for monitoring a dielectric state of high voltage equipment. A leakage current is measured and compared to a programmed limit value. An alarm is activated if the leakage exceeds the limit value to indicate that insulation has seriously deteriorated. The leakage current measuremen...

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Bibliographic Details
Main Author SANTOS, EDUARDO PEDROSA
Format Patent
LanguageEnglish
French
German
Published 08.07.2015
Subjects
CONTROL OR REGULATING SYSTEMS IN GENERAL
CONTROLLING
CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
ELECTRICITY
EMERGENCY PROTECTIVE CIRCUIT ARRANGEMENTS
FUNCTIONAL ELEMENTS OF SUCH SYSTEMS
GENERATION
MEASURING
MEASURING ELECTRIC VARIABLES
MEASURING MAGNETIC VARIABLES
MONITORING OR TESTING ARRANGEMENTS FOR SUCH SYSTEMS ORELEMENTS
PHYSICS
REGULATING
TESTING
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Summary:A system and method for monitoring a dielectric state of high voltage equipment. A leakage current is measured and compared to a programmed limit value. An alarm is activated if the leakage exceeds the limit value to indicate that insulation has seriously deteriorated. The leakage current measurement is verified using a comparison of individual leakage currents with a change in a vector sum of leakage currents.
Bibliography:Application Number: EP20100848636