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Normalization for FDS of Transformer Insulation Considering the Synergistic Effect Generated by Temperature and Moisture
- Source :
- IEEE Access, Vol 8, Pp 202013-202021 (2020)
- Publication Year :
- 2020
- Publisher :
- Institute of Electrical and Electronics Engineers (IEEE), 2020.
-
Abstract
- Frequency domain spectroscopy (FDS) technique is widely applied in the condition assessment of the oil-paper system in power transformers. However, the synergistic effect generated by moisture and temperature on the FDS data cannot be analyzed by the existing model since the single independent variable (moisture or temperature) is considered in the construction of the model. To quantify such the synergistic effect, a novel method that utilized for normalizing (or standardizing) the FDS curve is reported based on the theory of the power series and fitting analysis. The present findings reveal that the reported method is capable of predicting the dielectric loss (tan $\delta$ ) curve under diverse test conditions, in which the average error is less than 7%. The synergistic effect can be also explored by using the extracted feature parameters. The potential application is then proved to make up for the measurement errors during the FDS test, the findings are expected to promote the moisture analysis of the transformer insulation.
- Subjects :
- Power series
Materials science
General Computer Science
Frequency domain spectroscopy
media_common.quotation_subject
temperature effect
02 engineering and technology
01 natural sciences
law.invention
law
moisture
0103 physical sciences
General Materials Science
frequency domain spectroscopy (FDS)
Transformer
media_common
010302 applied physics
Observational error
Variables
Moisture
General Engineering
021001 nanoscience & nanotechnology
Moisture analysis
oil-paper insulation
Dielectric loss
lcsh:Electrical engineering. Electronics. Nuclear engineering
0210 nano-technology
Biological system
lcsh:TK1-9971
Subjects
Details
- ISSN :
- 21693536
- Volume :
- 8
- Database :
- OpenAIRE
- Journal :
- IEEE Access
- Accession number :
- edsair.doi.dedup.....3deafb988cdb3a79ebf429054fef715e