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Application of the Ultrasonic Detection System for the Power Transformer  

Kweon, Dong-Jin (한전 전력연구원)
Koo, Kyo-Sun (한전 전력연구원)
Kim, Jae-Chul (숭실대학 전기공학과)
Publication Information
The Transactions of the Korean Institute of Electrical Engineers C / v.54, no.12, 2005 , pp. 553-557 More about this Journal
Abstract
This paper describes the application results of an ultrasonic detection system for the power transformer. The ultrasonic detection system with 6 sensors was applied to detect partial discharge in a 154kV transformer with a dangerous levels of $C_{2}H_{2},\;C_{2}H_4$ and $CH_{4}$ gases. The ultrasonic detection tests were carried out 2 times, respectively, to confirm the existence and location of the partial discharge in the transformer. As a result of internal inspection, the arc trace between the pressure ring and core due to the partial discharge was found at the estimated position based on the amplitude and arriving time of the ultrasonic signals. Therefore, it was verified that the ultrasonic detection system is effective as a preventive diagnosis method for the power transformer. Also, the reliability of the ultrasonic detection system in detecting partial discharges in the transformer was also confirmed. It is expected, therefore, that the ultrasonic detection system will have beneficial effects on applications and verifications in detecting partial discharges for the power transformer.
Keywords
Ultrasonic; Preventive Diagnosis; Partial Discharge; Power Transformer; Location;
Citations & Related Records
Times Cited By KSCI : 2  (Citation Analysis)
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1 H. Kaward., 'Partial Discharge Automatic Monitor for Oil-Filled Power Transformer.' IEEE Trans. Power App. Syst., vol. PAS-103, no. 2, pp. 422-428, 1984   DOI   ScienceOn
2 E. Howells, 'Acoustic Emission Detection of Partial Discharge in Power Transformer,' EPRI Report, pp.1-1-1-2, 1985
3 E. Lemke, 'User's Manual of the Partial Discharge Measuring System LDS-6,' LEMKE Diagnostics GmbH, pp.5-79, 2000
4 'User's Manual of the OLTC Monitoring System,' MR, pp.1-13, 1999
5 Dong- Jin Kweon. et al., 'The Analysis of Ultrasonic Signals by Partial Discharge and Noise from the Transformer,' IEEE Transactions on Power Delivery, Vol.20, No.3, pp.1976-1983, July 2005   DOI   ScienceOn
6 User's Manual of the TNU and Hydran 201i, Syprotec, pp.1-48, 1999
7 D.J. Kweon, et al., 'On-Line Estimation of Partial Discharge Location in Power Transformer,' Journal of Electrical Engineering and Information Science, Vol.1, No.2, pp.45-51, 1996   과학기술학회마을
8 D.J. Kweon, 'An Application of the On Line Partial Discharge Measurement Method in Transformer,' The Korea Institute of Electrical Engineers, Vol.50C, No.8, pp.394-400, 2001   과학기술학회마을
9 E. Howells and E. T. Norton, ''Detection of partial discharge in transformer using acoustic emission techniques.'' IEEE Trans. Power App. Syst., vol.PAS-97, no.5, pp.1538-1549, 1978   DOI