Impact analysis of the capacitive coupling sensor on bushing external insulation

Chengxiang Li; Qi Xia; Zhongyong Zhao; Chenguo Yao; Yan Mi; Xiaozhen Zhao; Jian Wang

Impact analysis of the capacitive coupling sensor on bushing external insulation

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Author(s): Chengxiang Li ¹ ; Qi Xia ¹ ; Zhongyong Zhao ¹ ; Chenguo Yao ¹ ; Yan Mi ¹ ; Xiaozhen Zhao ¹ ; Jian Wang ²
- Affiliations: 1: The State Key Laboratory of Power Transmission Equipment and System Security and New Technology, Chongqing University, Chongqing, People's Republic of China ;
  2: State Grid of Xinjiang Electric Power Company, Electric Power Research Institute, Urumqi, People's Republic of China
Source: Volume 10, Issue 14, 04 November 2016, p. 3663 – 3670
DOI: 10.1049/iet-gtd.2016.0623 , Print ISSN 1751-8687, Online ISSN 1751-8695

Received 27/04/2016, Accepted 03/07/2016, Revised 14/06/2016, Published 04/11/2016

Online impulse frequency response analysis (IFRA) method is proposed and developed as a new technique to detect the winding mechanical deformation of a running transformer. The preliminary application of IFRA has been realised by using the bushing capacitive coupling sensor (CCS). However, whether the installation of the sensor affects the normal operation of the transformer is still unknown. To study above problem, this study first establishes a simulation model for transformer bushing based on the finite-element method and discusses the influence of sensor installation on the electric field distribution of capacitive bushing. The simulation proves that the installation of the CCS has minimal effect on the safe operation of the bushing. Second, the bushing withstand voltage tests are conducted in a lab, which proves that the installation of CCS meet the requirement for safe operation of capacitive bushing. Finally, the CCSs are installed on running power facilities, and the long and safe running experience indicates that the bushing and related facilities are unaffected by CCSs. The simulation analysis, withstand voltage test, and field application verify that the installation of CCS would not threaten the safe operation of high-voltage bushing, laying the foundation for engineering application of IFRA.

References

1. 1)
  - 32. Behjat, V., Vahedi, A.: ‘Numerical modelling of transformers interturn faults and characterising the faulty transformer behaviour under various faults and operating conditions’, IET Electr. Power Appl., 2011, 5, (5), pp. 415–431 (doi: 10.1049/iet-epa.2010.0095).
2. 2)
  - 18. Kang, Y.C., Lee, B.E., Zheng, T.Y., et al: ‘Protection, faulted phase and winding identification for the three-winding transformer using the increments of flux linkages’, IET Gener. Transm. Distrib., 2010, 4, (9), pp. 1060–1068 (doi: 10.1049/iet-gtd.2010.0094).
3. 3)
  - 5. Ghanizadeh, A.J., Gharehpetian, G.B.: ‘ANN and cross-correlation based features for discrimination between electrical and mechanical defects and their localization in transformer winding’, IEEE Trans. Dielectr. Electr. Insul., 2014, 21, (5), pp. 2374–2382 (doi: 10.1109/TDEI.2014.004364).
4. 4)
  - 19. Shen, M., Yin, Y., Wu, J.D., et al: ‘Experimental investigating on on-line monitoring of winding deformation of power transformers’, Trans. China Electrotech. Soc., 2014, 29, (11), pp. 184–190(in Chinese).
5. 5)
  - 13. Wang, M., Vandermaar, A.J., Valdivia, K.D.: ‘Condition monitoring of transformers in service by the low voltage impulse test method’. 11th Int. Symp. on High Voltage Engineering (ISH), London, United Kingdom, 1999.
6. 6)
  - 22. Zhang, S.L., Peng, Z.G., Liu, P., et al: ‘Electro-thermal coupling model for computation of radial temperature and electric field of resin impregnated paper high voltage direct current bushing’. Proc. CSEE, 2013, vol. 33, no. 22, pp. 191–200(in Chinese).
7. 7)
  - 24. IEC standard 60137: ‘Insulated bushings for alternating voltages above 1000 V’, 2008.
8. 8)
  - 15. Hejazi, M.A., Ghrehpetian, G.B., Moradi, G., et al: ‘Online monitoring of transformer winding axial displacement and its extent using scattering parameters and k-nearest neighbor method’, IET Gener. Transm. Distrib., 2010, 5, (8), pp. 824–832 (doi: 10.1049/iet-gtd.2010.0802).
9. 9)
  - 10. People Republic of China, Electric Power Industry Standard DL/T911: ‘Frequency response analysis on winding deformation of power transformers’, 2005.
10. 10)
  - 1. Ludwikowski, K., Siodla, K., Ziomek, W.: ‘Investigation of transformer model winding deformation using sweep frequency response analysis’, IEEE Trans. Dielectr. Electr. Insul., 2012, 19, (6), pp. 1957–1961 (doi: 10.1109/TDEI.2012.6396953).
11. 11)
  - 4. Siada, A.A., Hashemnia, N., Islam, S., et al: ‘Understanding power transformer frequency response analysis signatures’, IEEE Electr. Insul. Mag, 2013, 29, (3), pp. 48–56 (doi: 10.1109/MEI.2013.6507414).
12. 12)
  - 20. González, C., Pleite, J.: ‘Transformer modeling approaches for frequency response analysis’. 2010 XIX Int. Conf. on Electrical Machines (ICEM), Rome, Italy, 2010.
13. 13)
  - 21. Wang, M., Vandermaar, A.J., Srivastava, K.D.: ‘Improved detection of power transformer winding movement by extending the FRA high frequency range’, IEEE Trans. Power Deliv., 2005, 20, (3), pp. 1930–1938 (doi: 10.1109/TPWRD.2005.848674).
14. 14)
  - 18. Abu-Siada, A., Islam, S.: ‘A novel online technique to detect power transformer winding faults’, IEEE Trans. Power Deliv., 2012, 27, (2), pp. 849–857 (doi: 10.1109/TPWRD.2011.2180932).
15. 15)
  - 14. Rybel, T.De, Singh, A., Vandermaar, J.A., et al: ‘Apparatus for online power transformer winding monitoring using bushing Tap injection’, IEEE Trans. Power Deliv., 2009, 24, (3), pp. 996–1003 (doi: 10.1109/TPWRD.2009.2022674).
16. 16)
  - 3. Bagheri, M., Naderi, M.S., Blackburn, T., et al: ‘Frequency response analysis and short-circuit impedance measurement in detection of winding deformation within power transformers’, IEEE Electr. Insul. Mag., 2013, 29, (3), pp. 33–40 (doi: 10.1109/MEI.2013.6507412).
17. 17)
  - 18. Yao, C.G., Zhao, Z.Y., Chen, Y., et al: ‘Transformer winding deformation diagnostic system using online high frequency signal injection by capacitive coupling’, IEEE Trans. Dielectr. Electr. Insul., 2014, 21, (4), pp. 1486–1492 (doi: 10.1109/TDEI.2014.004283).
18. 18)
  - 17. Wang, M.: ‘Winding movement and condition monitoring of power transformers in service’, PhD thesis, The University of British Columbia, 2003.
19. 19)
  - 11. IEC standard 60076–18: ‘Measurement of frequency response’, 2012.
20. 20)
  - 4. Behjat, V., Vahedi, A., Setayeshmehr, A., Borsi, H., Gockenbach, E.: ‘Diagnosing shorted turns on the windings of power transformers based upon online FRA using capacitive and inductive couplings’, IEEE Trans. Power Deliv., 2011, 26, (4), pp. 2123–2133 (doi: 10.1109/TPWRD.2011.2151285).
21. 21)
  - 23. Liu, Q.C.: ‘Design principle of electrical insulation structure part II’ (Mechanical Industry Press, Beijing, China, 1981).
22. 22)
  - 20. Bigdeli, M., Vakilian, M., Rahimpour, E.: ‘Transformer winding faults classification based on transfer function analysis by support vector machine’, IET Electr. Power Appl., 2012, 6, (5), pp. 268–276 (doi: 10.1049/iet-epa.2011.0232).
23. 23)
  - 2. Bagheri, M., Naderi, M.S., Blackburn, T., et al: ‘Advanced transformer winding deformation diagnosis: moving from off-line to on-line’, IEEE Trans. Dielectr. Electr. Insul., 2012, 19, (6), pp. 1860–1870 (doi: 10.1109/TDEI.2012.6396941).
24. 24)
  - 6. Ahn, H.M., Oh, Y.H., Kim, J.K., et al: ‘Experimental verification and finite element analysis of short-circuit electromagnetic force for dry-type transformer’, IEEE Trans. Magn., 2012, 48, (2), pp. 819–822 (doi: 10.1109/TMAG.2011.2174212).

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Impact analysis of the capacitive coupling sensor on bushing external insulation

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