Publication detail

UHF system for detection and spatial localization of partial discharge in high voltage power transformers

ČÁP, M. FIALA, P. KAŠKA, M. KOČIŠ, L.

Original Title

UHF system for detection and spatial localization of partial discharge in high voltage power transformers

Type

conference paper

Language

English

Original Abstract

The article presents a new approach to the detection of a very weak electromagnetic (EM) signal, which is generated by partial discharge (PD) in a high-voltage, oil-filled power transformer. The new technique is based on the discrimination of signals with origin in outside of the transformer which are detected by external sensing head. Performed measurement process contain several different measurement modes with corresponding arrangement of sensing heads. The time-shifts of the waveforms related to transient process occurrence in the signals are the main input parameters for localization methods. In order to estimate the position of the signal source in the 3D space a minimum of four antennas has to be used, since the time of the PD is unknown.

Keywords

partial discharge, UHF method, high-voltage power transformer, insulation

Authors

ČÁP, M.; FIALA, P.; KAŠKA, M.; KOČIŠ, L.

RIV year

2015

Released

25. 5. 2015

Publisher

Institute of Measurement Science, Slovak Academy of Science

Location

Bratislava, SK

ISBN

978-80-969672-9-2

Book

Proceedings of 10th International Conference on Measurement

Pages from

237

Pages to

240

Pages count

4

BibTex

@inproceedings{BUT114647,
  author="Martin {Čáp} and Pavel {Fiala} and Miloš {Kaška} and Lubomír {Kočiš}",
  title="UHF system for detection and spatial localization of partial discharge in high voltage power transformers",
  booktitle="Proceedings of 10th International Conference on Measurement",
  year="2015",
  pages="237--240",
  publisher="Institute of Measurement Science, Slovak Academy of Science",
  address="Bratislava, SK",
  isbn="978-80-969672-9-2"
}