Evaluation of Frequency Domain Dielectric Spectroscopy of Generator Statorbar Insulation
In order to investigate the influence of ambient humidity on the dielectric characteristics of the maininsulation of the generator，and eliminate the influence of temperature on the dielectric spectrum test，insulation samples with different aging states were prepared in this paper，and subjected to mo...
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| Main Authors: | , , , , |
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| Format: | Article |
| Language: | zho |
| Published: |
Harbin University of Science and Technology Publications
2021-06-01
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| Series: | Journal of Harbin University of Science and Technology |
| Subjects: | |
| Online Access: | https://hlgxb.hrbust.edu.cn/#/digest?ArticleID=1963 |
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| Summary: | In order to investigate the influence of ambient humidity on the dielectric characteristics of the maininsulation of the generator，and eliminate the influence of temperature on the dielectric spectrum test，insulation samples with different aging states were prepared in this paper，and subjected to moisture test and temperature-varying dielectric spectrum test. The research results show that the dielectric loss integral spectrum is very sensitive to the damp state of insulation，and can stably characterize the damp state of insulation. Introducing the frequency temperature shift factor and constructing the main curve can eliminate the influence of temperature on the test. At the same time，the universality of the theory of frequency temperature translation in different aging states is verified， confirming the reliability of the master curve by calculating the sample activation energy. |
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| ISSN: | 1007-2683 |