Full Text:   <2700>

CLC number: TM403.2

On-line Access: 2011-04-11

Received: 2010-05-01

Revision Accepted: 2010-05-31

Crosschecked: 2011-01-31

Cited: 0

Clicked: 3892

Citations:  Bibtex RefMan EndNote GB/T7714

-   Go to

Article info.
1. Reference List
Open peer comments

Journal of Zhejiang University SCIENCE C 2011 Vol.12 No.4 P.345-350

http://doi.org/10.1631/jzus.C1000126


Detection and location of partial discharge in cast-resin dry-type transformers using a waveguide and a new acoustic emission sensor pair design


Author(s):  Ching-chau Su, Ya-wen Tang, Cheng-chi Tai, Jiann-fuh Chen

Affiliation(s):  Department of Electrical Engineering, National Cheng Kung University, Taiwan 70101, Tainan City

Corresponding email(s):   ea006@mail.njtc.edu.tw

Key Words:  Partial discharge, Acoustic emission, Cast-resin dry-type transformer, Waveguide, Acoustic emission sensors


Share this article to: More <<< Previous Article|

Ching-chau Su, Ya-wen Tang, Cheng-chi Tai, Jiann-fuh Chen. Detection and location of partial discharge in cast-resin dry-type transformers using a waveguide and a new acoustic emission sensor pair design[J]. Journal of Zhejiang University Science C, 2011, 12(4): 345-350.

@article{title="Detection and location of partial discharge in cast-resin dry-type transformers using a waveguide and a new acoustic emission sensor pair design",
author="Ching-chau Su, Ya-wen Tang, Cheng-chi Tai, Jiann-fuh Chen",
journal="Journal of Zhejiang University Science C",
volume="12",
number="4",
pages="345-350",
year="2011",
publisher="Zhejiang University Press & Springer",
doi="10.1631/jzus.C1000126"
}

%0 Journal Article
%T Detection and location of partial discharge in cast-resin dry-type transformers using a waveguide and a new acoustic emission sensor pair design
%A Ching-chau Su
%A Ya-wen Tang
%A Cheng-chi Tai
%A Jiann-fuh Chen
%J Journal of Zhejiang University SCIENCE C
%V 12
%N 4
%P 345-350
%@ 1869-1951
%D 2011
%I Zhejiang University Press & Springer
%DOI 10.1631/jzus.C1000126

TY - JOUR
T1 - Detection and location of partial discharge in cast-resin dry-type transformers using a waveguide and a new acoustic emission sensor pair design
A1 - Ching-chau Su
A1 - Ya-wen Tang
A1 - Cheng-chi Tai
A1 - Jiann-fuh Chen
J0 - Journal of Zhejiang University Science C
VL - 12
IS - 4
SP - 345
EP - 350
%@ 1869-1951
Y1 - 2011
PB - Zhejiang University Press & Springer
ER -
DOI - 10.1631/jzus.C1000126


Abstract: 
The acoustic emission (AE) method could be used to detect and locate partial discharges (PD) in cast-resin dry-type transformers. However, due to the high sound attenuation in the filled epoxy, the signal is prone to interference from external noises and thus, in practice, there is little possibility of detecting PD. In this study, two techniques were developed to alleviate the shortcomings of the AE method. First, a waveguide is installed on the high-voltage (HV) windings, so that the acoustic signals of PD will propagate to the AE sensors that are installed on both terminals of the waveguide. The location of the winding that has PD can then be detected from the difference in arrival time of the acoustic signals. Test results indicate that the waveguide technique is able to enhance the safety of a measurement system and offers the advantages of easy installation and higher flexibility. Second, a specially designed AE sensor pair is used to distinguish whether acoustic signals are generated by PD inside the HV winding or by the corona outside the transformers. Using these two techniques of waveguide and AE sensor pair not only greatly improves sensitivity but also increases the reliability of the measurement system. Practical test results show that the new techniques can be used to locate precisely the PD in HV windings.

Darkslateblue:Affiliate; Royal Blue:Author; Turquoise:Article

Reference

[1]ASTM E976-00, 2000. Standard Guide for Determining the Reproducibility of Acoustic Emission Sensor Response. American Society for Testing and Materials, PA, USA.

[2]Chen, J.F., Tai, C.C., Liang, T.J., Su, C.C., Yi, C.S., Chen, C.Y., 2008. High-Voltage Transformer Coil with Acoustic Wave Guiding Function. US Patent 7 339 447.

[3]Gockenbach, E., Werle, P., Borsi, H., 2001. Monitoring and Diagnostic Systems for Dry Type Transformers. Proc. IEEE 7th Int. Conf. on Solid Dielectrics, p.291-294.

[4]Harrold, R.T., 1979. Acoustic Waveguides for sensing and locating electrical discharges in high voltage power transformers and other apparatus. IEEE Trans. Power Appar. Syst., 98(2):449-457.

[5]Harrold, R.T., 1985. Acoustical technology applications in electrical insulation and dielectrics. IEEE Trans. Electr. Insul., 20(1):3-19.

[6]IEEE Std C57.124-1991. IEEE Recommended Practice for the Detection of Partial Discharge and the Measurement of Apparent Charge in Dry-Type Transformer. IEEE Power and Energy Society, New York, NY, USA.

[7]Lamela-Rivera, H., Macia-Sanahuja, C., Garcia-Souto, J.A., 2003. Detection and wavelet analysis of partial discharges using an optical fibre interferometric sensor for high-power transformers. J. Opt. A: Pure Appl. Opt., 5(1):66-72.

[8]Prosser, W.H., Gorman, M.R., 1994. Accurate Simulation of Acoustic Emission Sources in Composite Plates. ASNT Spring Conf., p.1-4.

[9]Ronald, T.H., Murrysville, P., 1979. Acoustic Waveguides for Sensing and Locating Corona Discharges. US Patent 4 158 168.

[10]Skubis, J., 1982. Piezoelectric reflecting transducer for partial discharge acoustic signals. J. Phys. E: Sci. Instrum., 15(10):1022-1026.

[11]Smith, G.C., 2005. A noncontact method for detecting acoustic emission using a microwave Doppler radar motion detector. IEEE Trans. Ultras. Ferroelectr. Freq. Control, 52(9):1613-1617.

[12]Su, C.C., Tai, C.C., Chen, C.Y., Hsieh, J.C., Chen, J.F., 2008. Partial Discharge Detection Using Acoustic Emission Method for a Waveguide Functional High-Voltage Cast-Resin Dry-Type Transformer. Int. Conf. on Condition Monitoring and Diagnosis, p.517-520.

[13]Su, C.C., Tai, C.C., Chen, C.Y., Hsieh, J.C., 2009. Partial discharge precise source location using acoustic emission method for a waveguide functional high-voltage cast-resin dry-type transformer. Int. J. Appl. Sci. Eng., 6:229-237.

[14]TransiNor As, 2003. Diagnostic Instrument from TransiNor As, AIA-1. User’s Guide, Version 5.0.2.

[15]Wang, X.D., Li, B.Q., Xiao, Z.X., Lee, S.H., Roman, H., Russo, O.L., Chin, K.K., Farmer, K.R., 2005. An ultra-sensitive optical MEMS sensor for partial discharge detection. J. Micromech. Microeng., 15(3):521-527.

[16]Werle, P., Wasserberg, V., Borsi, H., Gockenbach, E., 2000a. New Devices for a Dry Type Transformer Protection and Monitoring System. Proc. 6th Int. Conf. on Properties and Applications of Dielectric Materials, 1:567-570.

[17]Werle, P., Wasserberg, V., Borsi, H., Gockenbach, E., 2000b. A New Protection and Monitoring System for Dry Type Transformers Based on Innovative Sensor Technologies. IEEE Int. Symp. on Electrical Insulation, p.255-258.

[18]Werle, P., Borsi, H., Gockenbach, E., 2002. Diagnosing the Insulation Condition of Dry Type Transformers Using a Multiple Sensor Partial-Discharge-Localization Technique. IEEE Int. Symp. on Electrical Insulation, p.166-169.

Open peer comments: Debate/Discuss/Question/Opinion

<1>

Please provide your name, email address and a comment





Journal of Zhejiang University-SCIENCE, 38 Zheda Road, Hangzhou 310027, China
Tel: +86-571-87952783; E-mail: cjzhang@zju.edu.cn
Copyright © 2000 - Journal of Zhejiang University-SCIENCE