The Design and Operation of IEC 61850 – Based Transformer Measuring Device

Abstract

The submitted paper presents the results of research on the development of a monitoring system for HV power transformers using the IEC 61850 communication standard. The characteristic feature of this system is its implementation on Linux-based programmable PLC. Data registration functionality, aggregation, archiving and data visualization are merged on one controller. Data registration is performed through built-in digital and analogue input cards, Ethernet and serial ports used for communication with external devices. Data aggregation and archiving is based on the MySQL database system, through data visualization and presentation thanks to an in-built HTML server with an implemented HTML web page that shows the most important parameters in real time. In addition, the implemented IEC 61850 stack enables a direct communication with the SCADA system. The stack has been implemented within the controller in such a way that the need for additional equipment, such as standard machine translation, is reduced. Both the device and all the algorithms developed in the Institute of Electrical Engineering allow collecting and recording the signals in real time, and moreover make a preliminary diagnosis of the transformer.