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The air-gaps will appear in the ice-layer during icing and ice-melting process of composite insulators. The icing flashover process and flashover voltage are obviously affected by the air-gaps. In order to research the influence of the air-gaps on the icing flashover performance of composite insulators, the icing flashover tests were carried out by using the plate model of insulators. The influence...
Typical icing morphology, including bridged and non-bridged icicles, affects the electrical strength of energized transmission line insulators under melting conditions. This paper is concerned with melting process of multi-icicles and its flashover performance. Two different models with the same gap length was tested and compared. It was found that partial discharge in bridged icicle occurred from...
According to the ice morphology captured in field experiment, bridged and non-bridged icicles were proposed. Droplet ejection and its impact on voltage-time distribution and probability of flashover were analyzed under energized condition. During the experiments, impact factors including applied water conductivity, icicle length, combinations of air gap and icicle length were investigated and flashover...
Typical icing morphology, including bridged and non-bridged icicles, affects the electrical strength of energized transmission line insulators under melting conditions. During the experiment result shown in this paper, there are two kind of discharge patterns due to icing morphology difference. For non-bridged icicles, melting leading to droplet ejection was analyzed during flashover experiments....
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