The On-line Monitoring System for Power Cable Fault Circulating Current developed by Ningbo Taifengyuan Electric boasts multiple advantages including rapid response, compatibility with various industrial sensors and professional monitoring systems, capability to access and process thousands of data points, high monitoring accuracy, strong compatibility, built-in diverse communication protocols, easy access to other system platforms, adaptability to unattended operation scenarios, and support for alarm modes such as SMS alerts. It facilitates the accurate location of cable faults and safe monitoring of power systems.