In the thesis the insulation properties of hybrid insulating systems, which consist of electrodes with a dielectric coating and SF
6 as insulating gas, were investigated theoretically and experimentally. By using hybrid insulating systems in electrode arrangements with inhomogeneous field distribution, the maximum electric field in the gas gap can be reduced significantly compared to electrode arrangements without coating. This leads to increased inception voltages for discharges in the gas gap and to increased withstand voltages. As main factors, which influence the insulation properties, the thickness of the coating, the dielectric constant and the field utilization factor of the electrode arrangement were studied. The results of the calculations of the theoretical improvement of the breakdown voltage, which can be reached with dielectric coatings, were experimentally verified.
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In the thesis the insulation properties of hybrid insulating systems, which consist of electrodes with a dielectric coating and SF
6 as insulating gas, were investigated theoretically and experimentally. By using hybrid insulating systems in electrode arrangements with inhomogeneous field distribution, the maximum electric field in the gas gap can be reduced significantly compared to electrode arrangements without coating. This leads to increased inception voltages for discharges in the gas gap a...
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