The vibration on-line monitoring system of power transformer is an important part of power equipment on-line monitoring technology whose model should meet the requirements of IEC 61850. Based on an analysis of the system’s data processing and function distribution

and by using logical nodes for power system equipment

status monitoring and sensors including TVBR and SVBR in accordance with the newest IEC 61850 edition 2.0

the information model for vibration on-line monitoring system intelligent electronic devices (IEDs) is developed. The real-time communication mechanism is realized using the buffered report control block and file transfer model respectively for information transmission with alarm data

measurement data and vibration data waveform files. An on-line monitoring system based on the above modeling has been successfully applied on the spot.