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[07-08, 2001] 

Journal of Electrical Engineering, Vol 52, 07-08 (2001) 230-233

MATHEMATICAL MODEL OF TEMPERATURE DEPENDENCES OF THE DIELECTRIC CHARACTERISCTICS OF INSULATION SYSTEMS

Pavol Šandrik - Ján Zlatovský

   The contribution treats a model of the temperature dependences of dielectric quantities needed for evaluating the diagnostic measurements on the insulating systems of rotating electric machines. The model is based on experimentally determined dependences. The choice of the model is based on the coefficient of determination tested for statistical significance. The outcome is a mathematical model, which can be used to process the results of diagnostic measurements.

Keywords: dielectric properties of insulation system, temperature conditions, conversion to a reference value, insulation resistance, dielectric losses, permittivity, partial discharges, electrical strength, mathematical model


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