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access icon free Experimental study on the contamination deposition characteristics of insulators in a fog–haze environment

In recent years, the frequent occurrence of fog and haze in China has attracted increasing attention in the field of electrical insulation. Fog–haze weather is an extreme weather condition with high humidity, high concentrations of suspended particulate matter, and sometimes high conductivity. This exacerbates insulator surface contamination and moistens the contamination layer, which may lead to flashover incidents. Here, an experimental system was established to simulate the fog–haze environment under controlled and tunable conditions. Simulated contamination tests were then conducted using three typical insulators. The influence of insulator type and environmental parameters was investigated. Test results showed that higher humidity led to faster pollution accumulation for all three insulators. Moreover, equivalent salt deposit density (ESDD) on the surface increased linearly with increasing fog conductivity, and that on the upper surface rose faster. The ESDD increased significantly under AC voltage, especially on the lower surface. Finally, insulator contamination was studied in a real-world fog–haze environment with periodic measurement of the ESDD and environmental parameters. The ESDD showed a good correlation with the PM2.5 and PM10 concentrations. This work should have relevance for the external insulation of the power grid to resist the effects of fog and haze.

References

    1. 1)
      • 8. Jose, S., Gharai, B., Kumar, Y., et al: ‘Radiative implication of a haze event over eastern India’, Atmos. Pollut. Res., 2015, 6, (1), pp. 138146.
    2. 2)
      • 4. Zhou, J., Xing, Z., Deng, J., et al: ‘Characterizing and sourcing ambient PM2.5 over key emission regions in China I: water-soluble ions and carbonaceous fractions’, Atmos. Environ., 2016, 135, pp. 2030.
    3. 3)
      • 6. Yuan, Q., Li, W., Zhou, S., et al: ‘Integrated evaluation of aerosols during haze–fog episodes at on regional background in North China plain’, Atmos. Res., 2015, 156, pp. 102110.
    4. 4)
      • 10. Hu, J., Duan, F., He, K., et al: ‘Characteristics and mixing state of S-rich particles in haze episodes in Beijing’, Front. Environ. Sci. Eng., 2016, 10, (5), pp. 110.
    5. 5)
      • 1. Yu, W., Xue, Y., Lou, J., et al: ‘An UHV grid security and stability defense system: considering the risk of power system communication’, IEEE Trans. Smart Grid, 2016, 7, (1), pp. 491500.
    6. 6)
      • 26. He, B., Zhao, H., Xiu, Y., et al: ‘Influence of flow-electric field on withstand characteristics of HV suspension insulators in sandstorm circumstance’, IEEE Trans. Dielectr. Electr. Insul., 2016, 23, (5), pp. 28922898.
    7. 7)
      • 28. Guo, Y., Jiang, X., Liu, Y., et al: ‘AC flashover characteristics of insulators under haze–fog environment’, IET Gener. Transm. Distrib., 2016, 10, (14), pp. 35633569.
    8. 8)
      • 19. Chisholm, W.A.: ‘Insulator leakage distance dimensioning in areas of winter contamination using cold-fog test results’, IEEE Trans. Dielectr. Electr. Insul., 2007, 14, (6), pp. 14551461.
    9. 9)
      • 20. Casale, E.P., Que, W., Sebo, S.A.: ‘Distribution of salt contamination in the course of fog chamber tests of polymer insulators’. Annual Report Conf. on Electrical Insulation and Dielectric Phenomena, 2002, pp. 359362.
    10. 10)
      • 3. Li, S., Chen, Y., He, J., et al: ‘Discussion on smart grid development in China’. 2011 Asia-Pacific Power and Energy Engineering Conf., March 2011, pp. 14.
    11. 11)
      • 16. Liu, L., Wang, Y., Du, S., et al: ‘Characteristics of atmospheric single particles during haze periods in a typical urban area of Beijing: a case study in October, 2014’, J. Environ. Sci., 2016, 40, pp. 145153.
    12. 12)
      • 15. Shen, R., Schafer, K., Schnelle-Kreis, J., et al: ‘Characteristics and sources of PM in seasonal perspective – a case study from one year continuously sampling in Beijing’, Atmos. Pollut. Res., 2016, 7, (2), pp. 235248.
    13. 13)
      • 14. Xu, L., Chen, X., Chen, J., et al: ‘Seasonal variations and chemical compositions of PM2.5 aerosol in the urban area of Fuzhou, China’, Atmos. Res., 2012, 104, pp. 264272.
    14. 14)
      • 30. Sun, Y., Tu, Y., Wang, C., et al: ‘Contamination and AC pollution flashover characteristics of insulators under fog–haze environment’. IEEE 11th Int. Conf. on the Properties and Applications of Dielectric Materials, Sydney, Australia, July 2015, pp. 596599.
    15. 15)
      • 33. Yi, Y., Zhang, C., Chen, Z., et al: ‘Influence of aerosols on the ion-flow field under high-voltage direct current transmission lines’, IET Gener. Transm. Distrib., 2016, 10, (6), pp. 14791485.
    16. 16)
      • 22. Zhang, C., Wang, L., Guan, Z.: ‘Investigation of DC discharge behavior of polluted porcelain post insulator in artificial rain’, IEEE Trans. Dielectr. Electr. Insul., 2016, 23, (1), pp. 331338.
    17. 17)
      • 11. Wang, Z., Wu, T., Shi, G.L., et al: ‘Potential source analysis for PM10 and PM2.5 in autumn in a Northern City in China’, Aerosol Air Qual. Res., 2012, 12, (1), pp. 3948.
    18. 18)
      • 18. Baker, A.C., Farzaneh, M., Gorur, R.S., et al: ‘Insulator selection for AC overhead lines with respect to contamination’, IEEE Trans. Power Deliv., 2009, 24, (3), pp. 16331641.
    19. 19)
      • 31. Deng, H.M., He, Z.H., Wang, L., et al: ‘Effect of two phase mixtures on the selection of the discharge path’. Int. Conf. on High Voltage Engineering and Application, Chongqing, China, November 2008, pp. 913.
    20. 20)
      • 12. Chen, Y., Schleicher, N., Cen, K., et al: ‘Evaluation of impact factors on PM2.5 based on long-term chemical components analysis in the Megacity Beijing, China’, Chemosphere, 2016, 155, pp. 234242.
    21. 21)
      • 2. Li, C., Ma, G., Qi, B., et al: ‘Condition monitoring and diagnosis of high-voltage equipment in China-recent progress’, IEEE Elect. Insul. Mag., 2013, 29, (5), pp. 7178.
    22. 22)
      • 32. Yao, W., He, Z., Deng, H., et al: ‘Experimental investigation of two-phase mixture discharges under DC voltage from effects of macroparticle sizes’, IEEE Trans. Plasma Sci., 2011, 39, (3), pp. 856864.
    23. 23)
      • 34. Zhang, X., Bian, X., Cui, X., et al: ‘Effect of positive DC corona discharge intensity on the variation of conductor surface conditions under contaminated environment’. 2016 IEEE Conf. on Electrical Insulation and Dielectric Phenomena (CEIDP), Toronto, Canada, 2016, pp. 215218.
    24. 24)
      • 17. Wang, Y., Yang, W., Han, B., et al: ‘Gravimetric analysis for PM2.5 mess concentration based on year-round monitoring at an urban site in Beijing’, J. Environ. Sci., 2016, 40, pp. 154160.
    25. 25)
      • 7. Li, H., Wang, Q., Shao, M., et al: ‘Fractionation of airborne particulate-bound elements in haze-fog episode and associated health risks in a megacity of southeast China’, Environ. Pollut., 2016, 208, pp. 655662.
    26. 26)
      • 23. IEC 60060-1: ‘High-voltage test techniques-Part 1: general definitions and test requirements’, 2010.
    27. 27)
      • 21. Khaled, A., El-Hag, A., Assaleh, K.: ‘Equivalent salt deposit density prediction of outdoor polymer insulators during salt fog test’. 2016 IEEE Conf. on Electrical Insulation and Dielectric Phenomena (CEIDP), Toronto, Canada, 2016, pp. 786789.
    28. 28)
      • 13. Gu, J., Du, S., Han, D., et al: ‘Major chemical compositions, possible sources, and mass closure analysis of PM2.5 in Jinan, China’, Air Qual. Atmos. Health, 2014, 7, (3), pp. 251262.
    29. 29)
      • 5. Lv, B., Liu, Y., Yu, P., et al: ‘Characterizations of PM2.5 pollution pathways and sources analysis in four large cities in China’, Aerosol Air Qual. Res., 2015, 15, (5), pp. 18361843.
    30. 30)
      • 27. Su, Z.: ‘Influences of fog–haze on external insulation of transmission and distribution equipments’, Power Syst. Technol., 2013, 37, (8), pp. 22842290. (in Chinese).
    31. 31)
      • 9. He, K., Yang, F., Duan, F., et al: ‘Atmospheric particulate matter and regional complex pollution’ (Science Press, Beijing, 2011), Ch. 1, pp. 140(in Chinese).
    32. 32)
      • 24. IEC TS 61245: ‘Artificial pollution tests on high-voltage ceramic and glass insulators to be used on d.c. systems’, 2015.
    33. 33)
      • 29. Tu, Y., Sun, Y., Peng, Q., et al: ‘Particle size distribution characteristics of naturally polluted insulators under the fog–haze environment’, High Volt. Eng., 2014, 40, (11), pp. 33183326(in Chinese).
    34. 34)
      • 25. IEC 60507: ‘Artificial pollution tests on high-voltage ceramic and glass insulators to be used on a.c. systems’, 2013.
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