Model for partial discharges associated with treeing breakdown: III. PD extinction and re-growth of tree
Model for partial discharges associated with treeing breakdown: III. PD extinction and re-growth of tree
复制标题
与树木击穿相关的局部放电模型：III。
DOI：
10.1088/0022-3727/33/10/312
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发表时间：
2000
期刊：
影响因子：
--
通讯作者：
Hengkun Xie
中科院分区：
文献类型：
--
作者：
Kai Wu;Y. Suzuoki;T. Mizutani;Hengkun Xie
当电极间隔较长或施加的电压较低时，树枝不能直接生长到平面电极，并且在长时间后可以观察到局部放电（PD）的熄灭和新通道的重新生长。在PD消光之前，PD的发光从整个树状结构变为仅在针尖附近的区域，PD图案也从翼状变为乌龟状。这些现象被认为与PD增加沟道电导率有关。假设在树尖或树沟道中的沟道电导率高于针尖附近的沟道电导率，模拟结果与实验结果一致。
When the electrode separation is long or the applied voltage is low, the tree cannot directly grow to the plane electrode, and extinction of partial discharge (PD) with the re-growth of new channels can be observed after a long time. Before PD extinction, the light emission of the PD changes from the whole tree structure to only the region near the needle tip, and the PD pattern also changes from wing-like to turtle-like. These phenomena are considered to be related to the increase of channel conductivity by PDs. Assuming the channel conductivity is higher in the region at tree tips or in the tree channels than near the needle tip, the simulation results coincide with the experimental results.