• ISSN 0258-2724
  • CN 51-1277/U
  • EI Compendex
  • Scopus
  • Indexed by Core Journals of China, Chinese S&T Journal Citation Reports
  • Chinese S&T Journal Citation Reports
  • Chinese Science Citation Database
Volume 21 Issue 3
Jun.  2008
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Article Contents
ZHOU Kai, WU Guangning, HE Jingyan, LIU Jun, TONG Laisheng. Extraction and Counting of Partial Discharges under Pulse Voltage[J]. Journal of Southwest Jiaotong University, 2008, 21(3): 319-324.
Citation: ZHOU Kai, WU Guangning, HE Jingyan, LIU Jun, TONG Laisheng. Extraction and Counting of Partial Discharges under Pulse Voltage[J]. Journal of Southwest Jiaotong University, 2008, 21(3): 319-324.

Extraction and Counting of Partial Discharges under Pulse Voltage

  • Received Date: 29 Jan 2007
  • Publish Date: 25 Jun 2008
  • The extraction and counting method for partial discharge(PD) under pulse voltage was proposed.dB6 and dB2 wavelet packages were used to filter high and low frequency interferences respectively based on an analysis on correlation coefficient between simulation signals and extracted signals.A phase window was used to remove oscillating signals of PDs generated by sensors according to the characteristics of PDs under pulse voltage.PD phases were defined based on sampling rate,sampling length and zero-crossing of pulse voltage to analyze phase resolved patters(e.g.,-n and -q-n plots) under pulse voltage.Experiment results indicate that the proposed methods are effective for extraction and counting of PDs.

     

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