紫外检测；数据库；信息管理；图像处理；外绝缘状态评估。
UV detection; database; information management; image processing; external insulation status evaluation.
系统还可以实时自动存储放电数据，查询放电参数的变化趋势，进行绝缘状态评估。
The history data can be stored automatically and real time. Moreover, the developing trend of discharge parameters can be queried and analyzed for the condition evaluation of insulation.
监测系统工作原理是通过监测电缆放电信号和直流泄漏电流信号综合评估电缆绝缘状态。
The working principle of the developed monitoring system is to assess comprehensively the insulation status of DC feeder cable through monitoring discharge signal and DC leakage current signal.
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