Research on Intelligent Terminal Unit for Power Distribution Automation and Maintenance

In order to mitigate the cost of manpower and resource in maintenance of power distribution assets, and to deal with the inefficiency caused by the separated protection / automation system and maintenance / management system , a 4-in-1 intelligent terminal unit is proposed, which combines the functions of protection, measurement and control, online monitoring, and maintenance. It covers all the functions of a conventional distribution automation terminal unit and additionally provide maintenance functions based on multi-dimensional analysis to the online monitoring data collected through multiple sensors for temperature, mechanical characteristics, contacts movements, etc.