NDLI: Investigating suitable positions in power transformers for installing UHF antennas for partial discharge localization

Content Provider	IEEE Xplore Digital Library
Author	Mirzaei, H.R. Akbari, A. Zanjani, M. Miralikhani, K. Gockenbach, E. Borsi, H.
Copyright Year	2012
Description	Author affiliation: Department of Electrical Engineering, K. N. Toosi University of Technology, Tehran, Iran (Mirzaei, H.R.; Akbari, A.; Zanjani, M.) \|\| HV Test Field, Iran-Transfo Co., Zanjan, Iran (Miralikhani, K.) \|\| Institute of Electric Power Systems, Schering-Institute, University of Hannover, Germany (Gockenbach, E.; Borsi, H.)
Abstract	One of the critical points in the UHF partial discharge (PD) localization in power transformers is the installation position of the UHF antennas inside the transformer or on its tank. In the UHF localization method which is based on comparing the differences of the arrival times of the partial discharge electromagnetic waves, ideally at least four antennas must be used to have an effective localization. Mechanical limitations such as the existence of iron tank and high electric field intensity inside transformer must be considered in installing UHF antenna. Beside these problems, the effect of antennas positions on localization accuracy must be taken into account. The positions of the antennas have a direct relation with arrival time differences for potential PD positions inside transformer. In this paper a method to identify best places for antennas installation is proposed to obtain more accurate defect localization.
Starting Page	625
Ending Page	628
File Size	263368
Page Count	4
File Format	PDF
ISBN	9781467310192
e-ISBN	9781467310208
DOI	10.1109/CMD.2012.6416223
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2012-09-23
Publisher Place	Indonesia
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Partial discharges power transformer Correlation UHF localization UHF antennas Oil insulation Power transformers partial discharge
Content Type	Text
Resource Type	Article

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