Flashover Voltage Assessment of Polymeric Insulators with Different Profiles under Fan-Shaped and Longitudinal Non-Uniform Pollutions and Environment Humidity Effects
Subject Areas : electrical and computer engineeringmehrdad ghorbani pashakolaei 1 , Mohammad Mirzaie 2 , seyyed meysam seyyedbarzegar 3
1 -
2 - دانشگاه نوشیروان بابل
3 - دانشگاه صنعتی شاهرود
Keywords: Polymeric insulatorsnon-uniform pollutionuniform Pollutionflashover voltagehumidity,
Abstract :
The deposited pollution on the insulaters surface in overhead Transmission Lines and also its characteristic is one of the effective factors on insulators electrical behavior. The pollution on insulators surface is Non-uniform due to the wind direction. So, less contamination is in the same direction wind. Also, the pollution is different throughout the insulators length and in near high and low voltage electrodes. Therefore, the deposited contamination on insulators is non-uniform and can be considered two forms of longitudinal and Fan-shaped non-uniform pollutions. In this paper, the influence of uniform pollution and also the effect of three states for pollution expansion (%15, %25, %35) and four states non-uniform contamination degree (1.5, 3, 6, 13) with longitudinal and Fan-shaped, under different humidities, on the flashover voltage different 20 kV silicon rubber insulators, have been studied. According to the obtained results from laboratory tests, the increase of non-uniformity contamination degree has significant effect on the behavior of the insulators under different non-uniform pollution, so that the flashover voltage has decreased between 8.8 to 42.21 percent in all the insulators.
[1] M. Teguar, A. Mekhaldi, A. Bouhafs, and A. Boubakeur, "Comportement des surfaces isolantes sous pollution non-uniforme," in Proc. 2nd Int. Conf. Electr. Power Eng., Buletinul Institutului Polytechnic Din Iasi by Universitatea Tehica "GH,Asachi", Tome XLVIII (LII), pp 239-244, Iasi, Romania, 2002.
[2] B. Luo, H. Rao, X. Li, Z. Cai, Z. Su, and J. Zhou, "Study on ununiform pollution flashover characteristic of DC composite insulators," in Proc, IEEE Power Engineering Society Conf. and Expo., 5 pp., Johannesburg, South Africa, 16-20 Jul, 2007.
[3] K. Naito, K. Morita, Y. Hasegawa, and T. Imakoma, "Improvement of the DC voltage insulation efficiency of suspension insulators under contaminated conditions," IEEE Trans. Electr. Insul., vol. 23, no. 6, pp. 1025-1032, Dec. 1988.
[4] Z. Zhang, et al., "AC flashover performance of different shed configurations of composite insulators under fan-shaped non-uniform pollution," High Voltage, vol. 3, no. 3, pp. 199-206, Dec. 2018.
[5] M. F. Palangar and M. Mirzaie, "Diagnosis of porcelain and glass insulators conditions using phase angle index based on experimental tests," IEEE Trans. on Dielectrics and Electrical Insulation, vol. 23, no. 3, pp. 1460-1466, Jun. 2016.
[6] Z. Zhang, J. Zhao, D. Zhang, X. Jiang, Y. Li, B. Wu, and J. Wu, "Study on the DC flashover performance of standard suspension insulator with ring-shaped non-uniform pollution," High Voltage, vol. 3, no. 2, pp. 133-139, Oct. 2017.
[7] Z. Zhang, X. Liu, X. Jiang, J. Hu, and D. W. Gao, "Study on AC flashover performance for different types of porcelain and glass insulators with non-uniform pollution," IEEE Trans. Power Delivery, vol. 28, no. 3, pp. 1691-1698, Jul. 2013.
[8] X. Jiang, J. Yuan, L. Shu, Z. Zhang, J. Hu, and F. Mau, "Comparison of DC pollution flashover performances of varioustypes of porcelain, glass, and composite insulators," IEEE Trans. on Power Delivery, vol. 23, no. 2, pp. 1183-1190, Jun. 2008.
[9] Z. Zhang, D. Zhang, X. Jiang, and X. Liu, "Study on natural contamination performance of typical types of insulators," IEEE Trans. Dielectr. Electr. Insul., vol. 21, no. 4, pp. 1901-1909, Aug. 2014.
[10] Z. Zhang, D. Zhang, W. Zhang, C. Yang, X. Jiang, and J. Hu, "DC flashover performance of insulator string with fan-shaped non-uniform pollution," IEEE Trans. Dielectr. Electr. Insul., vol. 22, no. 1, pp. 177-184, Feb. 2015.
[11] M. A. Douar, A. Mekhaldi, and M. Bouzidi, "Flashover process and frequency analysis of the leakage current on insulator model under non-uniform pollution conditions," IEEE Trans. on Dielectrics and Electrical Insulation, vol. 17, no. 4, pp. 1284-1297, Aug. 2010.
[12] J. D. Samakosh and M. Mirzaie, "Analysis of leakage current characteristics during aging process of SiR insulator under uniform and longitudinal non-uniform pollution conditions," Measurement, vol. 147, no. 1, Article ID 106862, Dec. 2019.
[13] I. A. Joneidi, A. A. Shayegani-Akmal, and H. Mohseni, "Leakage current analysis of polymeric insulators under uniform and non-uniform pollution conditions," IET Generation, Transmission & Distribution, vol. 11, no. 11, pp. 2947-2957, Jun. 2017.
[14] Z. Zhang, J. You, D. Zhang, X. Jiang, J. Hu, and W. Zhang, "AC flashover performance of various types of insulators under fan-shaped non-uniform pollution," IEEE Trans. on Dielectrics and Electrical Insulation, vol. 23, no. 3, pp. 1760-1768, Jun. 2016.
[15] J. D. Samakosh and M. Mirzaie, "Flash-over voltage prediction of silicone rubber insulators under longitudinal and fan-shaped non-uniform pollution conditions," Computers & Electrical Engineering, vol. 78, no. 1, pp. 50-62, Sept. 2019.
[16] Z. Zhang, et al., "Study on the DC flashover performance of various types of insulators with fan-shaped nonuniform pollution," IEEE Trans. Power Delivery, vol. 30, no. 4, pp. 1871-1879, Aug. 2015.
[17] س. م. عربی و م. میرزایی، "ارزیابی پیرشدگی مقرههای پلیمری تحت شرایط آلودگی و رطوبت محیطی با استفاده از تحلیل سیگنالهای جریان نشتی، ولتاژ قوس الکتریکی و اسکن میکروسکوپی الکترون سطح مقره،" مجله مهندسي برق دانشگاه تبریز، دوره 48، شماره 1، صص. 184-173، بهار 1397.
[18] IEC, IEC 60507; Artificial Pollution Tests on High-Voltage Insulators to be used on A.C. Systems, Edition 3.0, 2013.
