Relaxation studies to identify aging with oil filled transformers : analysis
Sivaswamy, Birlasekaran, Ledwich, Gerard F., & Mathew, Joseph (2009) Relaxation studies to identify aging with oil filled transformers : analysis. In 9th International conference on Properties and Applications of Dielectric Materials, 19-23 July 2009, Harbin, China. (In Press)
Reliable condition indicating parameters are needed in the energy sector with web based information structure and with increased number of aged power apparatus operating in digital switching and loading environment. This project for oil-filled power transformers is taken up by Cooperative Research Centre for Integrated Engineering Asset Management (CIEAM) to develop knowledge models for prediction of remaining life of operating transformers and for other asset decision making processes in prognosis of failure rate. The aims at Queensland University of Technology (QUT) are to come up with partial discharge (PD) and relaxation condition indicators. In this paper, analysis of the earlier paper results is presented to arrive at condition indicators for aging. The time domain results are analyzed with three techniques and frequency domain results are analyzed with four techniques based on the reported dielectric response models. The study yields new dynamic information on aged status to develop the multiple diagnostic models for the prediction of the remaining life, rate of degradation and developing faults.
Impact and interest:
Citation counts are sourced monthly from and citation databases.
These databases contain citations from different subsets of available publications and different time periods and thus the citation count from each is usually different. Some works are not in either database and no count is displayed. Scopus includes citations from articles published in 1996 onwards, and Web of Science® generally from 1980 onwards.
Citations counts from theindexing service can be viewed at the linked Google Scholar™ search.
Full-text downloads displays the total number of times this work’s files (e.g., a PDF) have been downloaded from QUT ePrints as well as the number of downloads in the previous 365 days. The count includes downloads for all files if a work has more than one.
|Item Type:||Conference Paper|
|Keywords:||Dielectric Relaxation, Polarization, Low Frequency Domain Spectroscopy or Dielectrometry, Polarization Index, Condition monitoring.|
|Divisions:||Current > Research Centres > CRC Integrated Engineering Asset Management (CIEAM)
Past > QUT Faculties & Divisions > Faculty of Built Environment and Engineering
Past > Schools > School of Engineering Systems
|Copyright Owner:||Copyright 2009 IEEE, QUT and CIEAM|
|Deposited On:||23 Apr 2009 22:48|
|Last Modified:||29 Feb 2012 13:57|
Repository Staff Only: item control page