Information modeling and SCL description of IED for transformer condition monitoring based on IEC61850

Transformer is an important substation device of power system and monitoring of its condition is imperative. IEC61850 standard as an international standard of substation communication networks and systems is aimed at harmonizing the current stand-alone substation automation systems and realizing the interoperation of intelligent electronic devices (IED) made by different manufacturers. This article discusses the information modeling techniques of IEC61850 and modeling steps of condition-monitoring IED, analyzes the reporting service, focuses on the characteristics of transformer condition monitoring, rationally develops and makes use of logical nodes and data in the IEC61850 standard, conducts modeling for the actual intelligent electronic device (IED) of transformer condition monitoring and describes the model with substation configuration description language (SCL). The configuration file of this model has passed the test done with standard syntax (Schema mode).