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电力设备在线监测是指通过技术手段实时监测电力设备运行状态下产生的声、光、电、热、化学组份等参数,通过这些参数的特点和变化趋势,专业人员可以了解电力设备的健康水平。运行中的电气设备主要由容性设备(互感器、避雷器)、开关设备(断路器、隔离开关)、主变、母线、线路等构成。停电试验主要是检测其绝缘性能和机械性能、导电性能。测量的项目主要有介质损耗因数、泄漏电流(绝缘电阻原理相同)、设备电容量、局部放电量、导电电阻值、气体组份。这些参数现在都可以由在线监测手段获取或反映出来。主流的在线监测技术有:容性设备的在线绝缘监测(基于电气)、局部放电在线监测
On-line monitoring of power equipment refers to the real-time monitoring of the acoustic, optical, electrical, thermal, chemical composition and other parameters generated by the operation of power equipment through technical means. Through the characteristics and trends of these parameters, professionals can understand the health level of power equipment . Electrical equipment in operation mainly consists of capacitive equipment (transformers, surge arresters), switchgear (circuit breakers, disconnectors), main transformers, busbars, lines and the like. Power failure test is to test its insulation and mechanical properties, electrical properties. Measured items are the dielectric loss factor, leakage current (the same insulation resistance principle), equipment capacity, partial discharge capacity, the value of conductive resistance, gas composition. These parameters can now be obtained or reflected by online monitoring. Mainstream online monitoring technologies include: Online insulation monitoring of capacitive devices (electrical based), online partial discharge monitoring