电气设备状态监测与故障诊断技术的现状与展望

介绍电气设备监测与诊断技术的意义和监测诊断系统的组成，阐述了几种设备的监测诊断技术。对变压器，主要介绍局部放电和油中溶解气体监测；对电容式设备，主要介绍介质损耗因数、电容量及三相不平衡电流监测；对金属氧化物避雷器，主要介绍阻性电流监测。监测诊断技术的发展趋势是：加强信号处理、识别诊断、人工智能等新技术的应用；综合性、分布式、远程监测与诊断系统和电力设备虚拟医院的研发；以可靠性为中心的维修策略的研究及推广等。

Present Situation and Prospects of Condition Monitoring and Fault Diagnosis Technology for Electrical Equipments

This paper briefly introduces the significance of condition monitoring and fault diagnosis technology and the composition of monitoring and diagnosis system for electrical equipments, and describes the monitoring and diagnosis technology for some kinds of equipments. Partial discharge and monitoring of dissolving gas in oil for transformer, dielectric loss factor and capacitance and three-phase unbalanced current for capacity type equipments, monitoring of resistance current for metal oxide lightning arrester are mainly introduced. It is pointed out that the development tendency of monitoring and diagnosis technology is to strengthen the new technical applications such as signal processing, identification diagnosis and artificial intelligence; to research and develop comprehensive and distributive remote monitoring, diagnosis system and virtual hospital of power equipment; to research and popularize the maintenance strategy based on reliability.