Design And Implementation Of The Condition-Based Maintenance Management System For Relay Protection Equipment

With the application of intelligent substation technology advancement, substation primary equipment with condition monitoring function has become a development trend of technology. Also with the development of the total life cycle management mode, the regular maintenance mode of traditional primary equipment is gradually transform into the condition-based maintenance mode. In the relay protection device, because the protective system covers analog input and output of the protection device and switch links, and microcomputer protection can only inspect about 80% links. Therefore, it still takes the traditional mode of the regular maintenance.In 2007, State Grid Group began to organize a work for condition based maintenance of power equipment, and published the "power transmission equipment status inspection and acceptance rules". Therefore equipment maintenance management system will gradually transform from the plan maintenance to condition-based maintenance.Based on primary equipment condition-based maintenance, relay protection department Shanghai Power Co carefully learn from the substation primary equipment condition-based maintenance experience, research on the structure and technical characteristics of relay protection equipment, and establish a condition-based relay protection equipment maintenance management system,which was based on the evaluation of the equipment's status, and standard operation for the protection. In this project. Firstly, following the guidelines for evaluation of condition-based maintenance is studied, according to the characteristics of the equipment in Shanghai have set guidelines for the assessment of Shanghai in line with the actual situation. Then the requirement analysis was carry out for relay protection conditioned-based maintenance system. Based the requirement analysis of the protection equipment condition-based maintenance, the outline design, detailed design was carried out for the system; at last, through the programming language to realize the condition-based maintenance of relay protection System. After the completion of system development,through the combination of manual test and system test method to test the system in detail. At present the system has been in Shanghai power Co and subordinate power supply company for practical application, obtained the consistent high praise.