A PROCESS AND APPARATUS FOR TESTING THE CONDITION OF AN INSULATING SYSTEM

A PROCESS AND APPARATUS FOR TESTING THE CONDITION OF AN INSULATING SYSTEM

A process, and apparatus, for testing the condition of an insulating system consists in charging the insulating system with direct voltage through insulated, electrically conducting parts, then discharging it and determining from parameters of the recovery voltage from which to assess the state of t...

Ausführliche Beschreibung

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Bibliographische Detailangaben
Hauptverfasser: BOGNAR, ALAJOS, KALOCSAI, LASZLO, HAMOS, ISTVAN, CSEPES, GUSZTAV, SCHMIDT, JANOS
Format: Patent
Sprache:eng
Schlagworte:
MEASURING
MEASURING ELECTRIC VARIABLES
MEASURING MAGNETIC VARIABLES
PHYSICS
TESTING
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Beschreibung
Zusammenfassung:A process, and apparatus, for testing the condition of an insulating system consists in charging the insulating system with direct voltage through insulated, electrically conducting parts, then discharging it and determining from parameters of the recovery voltage from which to assess the state of the insulating system. The charging period is 10 - 10 s; the ratio of charging and discharging periods is kept between 0.1 -100, and the ratio of the peak value of the recovery voltage and the charging voltage is measured. Then the measurement cycle is repeated several times with other charging/discharging periods but at constant charge/discharge period ratio as a function of charging period. Comparing the spectrum thus obtained with a reference spectrum the state of the insulating system can be assessed.