Development of historical database for SF6 extra high voltage circuit breaker intelligent monitoring system

Considering the importance of the SF6 extra high voltage circuit breakers in the power supply system, an intelligent monitoring system is developed. And a historical database system is designed for this monitoring system in this article. This historical database can store and manage such information as historical data, historical fault information, report and device information, etc. Furthermore, there is a simple device expert database in this historical database developed to assist fault detect. The SQLite, a lightweight relational database, is adopted as the backend database in this historical database system. According to the specific requirements of the actual application for monitoring task, the Entity-Relationship model is designed. Application experiments in the actual working environment reveal that this historical database system can well accomplish the information storage and management work and completely meet the requirements of the intelligent monitoring system.