This paper deals with the selection lightning impulse insulation level of electrical apparatus in 500kv sub-stations by using the statistical method.
本文主要用统计方法对500千伏变电所电气设备，在雷击线路沿导线侵入雷电波情况下，雷电冲击绝缘水平的选择作了分析和探讨。
Like all electrical apparatus, these units contain insulation that must be protected against dirt and moisture.
如同所有电子机器它包含着要从灰尘与湿度受到保护地绝缘物。
The study of partial discharge (PD) in power apparatus is one of the most important subjects in the field of insulation diagnosis in electrical power system.
电力设备局部放电检测技术是当今电力系统绝缘诊断的一项重要研究课题。
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