The increasing of the electricity demand and consumption puts forward higher requirements for the safety and stability of the power system. The condition monitoring and fault diagnosing of the power systems are essential for ensuring the reliability, safety, and efficiency of electrical power transmission and distribution. Condition monitoring involves the collection and analysis of data from various sensors and measurement devices installed on power system equipment. This data is used to assess the equipment's operational status, identify potential faults before they become critical, and to calculate criteria in relay protection actions if a failure occurs. In the past decades, with the development of advanced analytics, machine learning, and artificial intelligence techniques, advanced power system condition monitoring and fault diagnosis from multiple sources can help reduce downtime, improve the sensitivity of power system relay protection, and lower maintenance costs. In the meanwhile, progress has also been made in environmental compatibility with the adoption of advanced power system condition monitoring and fault diagnosis technologies.

This Research Topic, entitled "Advancements in Power System Condition Monitoring, Fault Diagnosis and Environmental Compatibility", aims to present the most recent advances related to power system condition monitoring, fault diagnosis methods, relay protection techniques, and methods and the environmental compatibility of the developing power system. We believe that the findings of this Research Topic will contribute to the power system protection community, thereby promoting the safety and reliability of the power system as well as the advancement of the power system fault diagnosis technologies.

This Research Topic encourages the contributions of original research articles with new data, information, and findings, and comprehensive reviews on the power system condition monitor, fault diagnosis, relay protection, environmental compatibility and other relevant topics. Topics of interest for publication include, but are not limited to:
1. Power system condition monitoring and maintenance
2. Power system fault diagnosis
3. Power system condition monitoring and relay protection
4. Bus system monitoring and fault diagnosis
5. Transformer condition monitoring and fault diagnosis
6. Distribution networks condition monitoring and fault diagnosis
7. Intelligent fault diagnosis of power system
8. Transient high voltages and overvoltage monitoring and protection
9. Dielectric insulation test for power condition monitoring
10. Multi-source information fusion technology and its application in power system monitoring
11. Environmental compatibility during power system monitoring and maintenance

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Frontiers in Energy Research

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