Study of the Ultrasonic Characteristics of Typical Partial Discharge on GIS

Abstract:

This Paper studied the typical PD in GIS by ultrasonic method. A GIS PD simulating and testing system is established, including a PD simulating system, an ultrasonic detecting system and a conventional pulse current method measurement system. The thesis focuses on four typical kinds of PD signals in GIS, including metal particles, bad contacts on high and grounding potential conductor, the protrusion on the high potential conductor. The statistics characteristics are obtained which include N-Φ spectrogram (relationship between discharge frequency and discharge phase Spectrogram) and Umax-Φ spectrogram (relationship between discharge amplitude and discharge phase Spectrogram). Experimental results show that low-frequency ultrasonic sensors can detect this four PD signals， signal spectra analysis shows that ultrasonic signals of different statistical model are with different characteristics. The results provide test data for the pattern recognition of Partial Discharge in GIS.

• Periodical: Advanced Materials Research (Volumes 753-755)
• Pages: 2200-2207
• DOI: https://doi.org/10.4028/www.scientific.net/AMR.753-755.2200
• Online since: August 2013
• Authors: Yuan Yang, Jian Gang Bi, Hong Jie Wang, Nan Meng
• Keywords: Gas Insulated Switchgear (GIS), N-Φ Spectrogram, Partial Discharge (PD), Ultrasonic, Umax-Φ Spectrogram

References

[1] HaoZhang, Blackburn T R, Et al. A Novel Wavelet Transform Technique for On-line Partial Discharge Measurements Wavelet De-noising Algorithm[J]. IEEE Transactions on Dielectrics and Electrical Insulation, 2007, 14（1）：3～14.

DOI: 10.1109/tdei.2007.302864

[2] Ward B H. A Survey of New Techniques in Insulation Monitoring of Power Transformers [J]. IEEE Electrical Insulation Magazine, 2001, 17(3): 16～23.

DOI: 10.1109/57.925299

[3] Pryor B M．A Review of Partial Discharge Monitoring in Gas Insulated Substations[C]．IEE Colloquium Partial Discharges in Gas Insulated Substations, London, 1994. 1～2.

DOI: 10.1049/ic:19951263

[4] Huecker T and Gorablenkow J. UHF Partial Discharge Monitoring and Expert System Diagnosis[J]. IEEE Transactions On Power Delivery, 1998, 13(4): 1162～1167.

DOI: 10.1109/61.714479

[5] Blackburn T R, James R E, Et al. An Improved Electric/Acoustic Method for The Location of Partial Discharges in Power Transformers[C]. Proceedings of the 3rd International Conference on Properties and Applications of Dielectric Materials, 1991. 1132～1135.

DOI: 10.1109/icpadm.1991.172276

[6] Kawada H, Honda M, Et al. Partial Discharges Automatic Monitor for Oil-filled Power Transformer[J]. IEEE Transactions on Power Apparatus and Systems, 1984, 103(2): 422～427.

DOI: 10.1109/tpas.1984.318261

[7] Howells E, Norton E T. Detection of Partial Discharges in Transformers Using Acoustic Emission Techniques[J]. IEEE Transactions on Power Apparatus and Systems, 1978, 97（5）：1538～1549.

DOI: 10.1109/tpas.1978.354646

[8] Howells E, Norton E T. Location of Partial Discharge Sites in On-Line Transformers [J]. IEEE Transactions on Power Apparatus and Systems，1981, 100（1）：158～162.

DOI: 10.1109/tpas.1981.316872

[9] Boggs S A and Stone G C. Fundamental Limitations in Measurement of Corona and Partial Discharge[J]. IEEE Transactions On Electrical Insulation, 1982, 17(2)：143～150.

DOI: 10.1109/tei.1982.298548