Development Of Condition Based Maintenance Information Management System For Oil-filled Transformer (reactor)

For all the time, Time-Based Maintenance (TBM) is the main tactics for internal electrical power industry. However this kind of method is becoming more and more unsuitable for keeping the stability of equipment and decreasing maintenance spending. In order to change the situation , the transition from TBM to Condition-Based Maintenance(CBM) is in urgent need. It is based on the state of health of equipments,and a flexible and pertinent maintenance mode is needed. This paper presents related concepts about CBM, analyses the significance and inevitable trend of developing CBM in electrical power equipments maintenance, introduces the ideas and development process of a CBM information management system for 500kv oil-filled transformer(reactor) in details. The development of the system consults the latest published CBM related regulation and technical standards from State Grid Corporation. The technology adopted to develop the system is ASP.NET from Microsoft , it is used to construct a web project with Browser/Server style. The programming language is C# , the database tool is MS SQL Server 2005, and the popular AJAX technology is combined into the system to complete user interface,all the development is under the environment of Visual Studio 2005. A multi-layer structure is used for the system, it makes the program more hierarchic, readable and extensible. At the same time, the functionality, security and efficiency are under consideration. The system realizes the user privilege management, it restricts the two kinds of administrator power and substation management power within their respective scopes. It accomplishes the functions of information entry, search, modification. It could gather the equipments maintenance evaluation information, generate the evaluation results and reports automatically, what's more, all the condition maintenance information over the years could be searched in the system.Other useful functions are also designed: such as verification control, log enquiry.IT application is an important factor to make the work of CBM more efficient and regular, the application of the system will meet the needs of CBM information management and make related work have a progressive approach.