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Analysis of Dielectric Properties in High-Voltage Insulator by Dielectric Spectroscopy (DRS)

Lukáš Kruželák
Department of Electric Power Engineering/ PhD student

     Last modified: 2017-06-15

This article aims to investigate the dielectric properties of high-voltage insulator. For this purpose, be the method chosen dielectric relaxation spectroscopy (DRS), which was carried out on the plastic support insulator. In this experiment, we used two measuring device with different frequency range and different voltage range. The first apparatus have a frequency range of 0.1 mHz to 10 kHz, depending on voltage value It has been set in the range of 1V to 160 V. The other device have a frequency range of 10 Hz to 2 MHz at a constant voltage of 2 V. The use of the two devices to obtain polarization describe processes in a broad spectrum of 0.1 mHz to 2 MHz at a chosen voltage 2V. The next time the measurement was in one of the devices increased value voltage due to polarization investigations of processes at different value applied voltage. This device can measure the surface resistance of the insulator, which is also reviewed in this publication. When measuring was used serial and parallel RC model for both devices on the compare measurement results.


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