Sinaga, Herman Halomoan and Phung, Toan and Blackburn, Trevor (2013) UHF Sensor Array for Partial Discharge Location in Transformers. IEEE International Conference on Condition Monitoring and Diagnosis, CMD. ISSN 978-1-4673-1020-8
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Abstract
The application of the ultra-high frequency (UHF) partial discharge (PD) detection method has proven effective in GIS. This method is now also being applied to detect PDs in oilfilled power transformers. In this paper, the localization of the PD source in transformer is discussed. This is achieved by applying an array of four sensors to capture the PD signals at the same time. To determine the PD location, two methods (first peak and cross-correlation) are used to determine the difference in time of arrival between sensor signals and followed by numerical triangulation. The sensor positions and array size influence the PD waveform patterns captured, and thus the accuracy of the PD localization. Experimental results and analysis indicate the first peak method yields better location accuracy than the cross correlation method. However, the traditional external acoustic detection method performs better than the UHF detection method under the same test configurations.
| Item Type: | Article |
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| Subjects: | T Technology > TK Electrical engineering. Electronics Nuclear engineering |
| Divisions: | Fakultas Teknik (FT) > Prodi Teknik Elektro |
| Depositing User: | DR. Herman H Sinaga |
| Date Deposited: | 11 Apr 2023 07:25 |
| Last Modified: | 11 Apr 2023 07:25 |
| URI: | http://repository.lppm.unila.ac.id/id/eprint/50211 |
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