METHODS FOR ACCELERATING THE INSULATION RESISTANCE MEASUREMENT IN AN UNGROUNDED POWER SUPPLY SYSTEM

Methods are provided for accelerating the insulation resistance measuring for determining an insulation resistance according to a pulse measuring method in an ungrounded power supply system. After indicating a target charging state of the network capacities available, a target point in time is calcu...

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Bibliographic Details
Main Authors Huang, Zhongkui, Gruen, Matthias
Format Patent
LanguageEnglish
Published 11.07.2024
Subjects
MEASURING
MEASURING ELECTRIC VARIABLES
MEASURING MAGNETIC VARIABLES
PHYSICS
TESTING
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Summary:Methods are provided for accelerating the insulation resistance measuring for determining an insulation resistance according to a pulse measuring method in an ungrounded power supply system. After indicating a target charging state of the network capacities available, a target point in time is calculated at which the network capacities have reached the target charging state. A first wait time is calculated from the current point in time as the difference between the target charging state and the current point. Alternatively, a target charging rate reflects a sufficiently stationary charging state of the capacitors, valid for measuring the insulation resistance. The target charging rate corresponds to the derivative of the first order of the target charging voltage and thus linked to the target point in time. Using the derivatives of the first order, a time difference is calculated as a second wait time.
Bibliography:Application Number: US202318383303