On-Line Condition Monitoring for Power Transformers Based on UHF PD Measurements

Abstract:

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An on-line monitoring system based on ultra high frequency (UHF) partial discharge (PD) measurements was developed for power transformers. The UHF PD signals were coupled by a UHF sensor and preprocessed by peak envelope detection technique. The system has high sensitivity, strong ability of interference suppression and well real-time capability according to the simulated experiment in lab and field test of a power transformer. Experimental results showed that the forepart PD faults could be discovered by the analysis of UHF PD signals. The on-line monitoring system has already been applied on a power transformer for years.

Info:

Periodical:

Advanced Materials Research (Volumes 614-615)

Edited by:

Mojie Sun, Gangui Yan and Yingjie Zhang

Pages:

1158-1162

DOI:

10.4028/www.scientific.net/AMR.614-615.1158

Citation:

M. J. Liu et al., "On-Line Condition Monitoring for Power Transformers Based on UHF PD Measurements", Advanced Materials Research, Vols. 614-615, pp. 1158-1162, 2013

Online since:

December 2012

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Price:

$35.00

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