XLPE电缆绝缘中电树枝生长的阶段性特性实验研究

Study on growing stages of electrical tree in XLPE

本文研究发现,XLPE电缆绝缘中电树枝的生长过程多数呈阶段性特征,并且在较低的电压频率下伴随着两种不同的电树枝结构。但在较高的电压频率下电树枝生长的阶段性不甚明显,并且仅仅存在一种电树枝结构。本文最后分析了产生这个实验现象的原因。

It is found in this paper that most growing processes of electrical tree are with stages, and are accompanied with two kinds of different treeing structures in XLPE at lower frequency. But there is only one kind of structure in higher frequency. The mechanism for these experimenting phenomena is also analysed.