Instruments for On-line Monitoring of Transformers

Authors

  • V. Mentlík University of West Bohemia, Faculty of Electrical Engineering, Department of Technologies and Measurement Author
  • P. Prosr University of West Bohemia, Faculty of Electrical Engineering, Department of Technologies and Measurement Author
  • R. Polanský University of West Bohemia, Faculty of Electrical Engineering, Department of Technologies and Measurement Author
  • J. Michalík Research Centre of Mechatronics Systems EVPÚ a.s. Nová Dubnica and Faculty of Electrical Engineering ŽU in Žilina Author
  • M. Brandt Research Centre of Mechatronics Systems EVPÚ a.s. Nová Dubnica and Faculty of Electrical Engineering ŽU in Žilina Author

DOI:

https://doi.org/10.24084/repqj07.297

Keywords:

electrotechnological diagnostics, dissolved gases, experimental laboratory, winding temperature, operation characteristics, SFRA analysis

Abstract

The main objective of the paper is to describe the experience with newly developed monitoring system for transformers with oil-paper insulation system. From the view of operation reliability, it is necessary for operators to provide a monitoring of transformer’s failure free operation. The application of monitoring system enables to warn timely of the rising failure and also decrease of degradation of single subsystems of machine. When failure is detected, it is important to support this detection by other measurements that would lead to exact determination of the failure. SFRA analysis (Sweep Frequency Response Analysis) is such additional method in our monitoring.

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Published

2024-01-24

Issue

Vol. 7 No. 1 (2009)

Section

Articles