电容器是一种全密封设备，其绝缘老化状况的判定十分困难。
It is very difficult to predic insulation ageing of the power capacitor because it is a complete closed equipment.
本文试图根据电容器极对壳绝缘的局部放电试验结果，对其绝缘老化进行判断。
This paper tries to predict the insulation ageing of power capacitor according to the pole-to-case partial discharge test.
变压器的预警系统、现场诊断、趋势分析、状态检修是寿命管理的内容，防止变压器绝缘老化是关键。
With the prevention of insulation aging as the key, service life management for transformers includes transformer fault forecast, on the spot fault diagnosis, trend analysis and state examination.
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