Information Modeling & SCL Description of IEC61850-Based Transformer Condition-Monitoring IED
Since power transformer is the important power transformation equipment in electric system, it's imperative for us to monitor its condition. As the international standards on substation communication network and system, IEC61850 aims at unifying the existing transformer substation automatic systems that are different from one another to achieve interoperability of intelligent electronic devices made by different manufacturers. This paper discussed IEC61850 information modeling technology and modeling procedures for state monitoring IED, analyzed its reporting services, modeled actual transformer state-monitoring IED through reasonable extension and use of the logical nodes and data in IEC61850 standards according to the characteristics of transformer state-monitoring, and described the model with substation configuration language. The model description file passed the test performed on it in standard syntax (Schema mode).