Abstract:In hybrid AC/DC overhead transmission lines outdoor insulators are exposed to superimposed AC and DC field stress. As the pollution flashover performance of insulators under pure AC and pure DC field stress differs, the impact of superimposition of field stress is not predictable and has to be investigated on experimental basis. A suitable test set up for such investigations based on simplified specimen geometry is developed. As the test bench uses hybrid AC/DC test voltage for hybrid field generation several … Show more
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