Simulation of Contamination Deposition on Typical Shed Porcelain Insulators

Yukun Lv, Weiping Zhao, Jingang Li and Yazhao Zhang
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Yukun Lv: School of Energy, Power and Mechanical Engineering, North China Electric Power University, Baoding 071003, China
Weiping Zhao: School of Energy, Power and Mechanical Engineering, North China Electric Power University, Baoding 071003, China
Jingang Li: Jinneng Clean Energy Ltd. Company, Taiyuan 030002, China
Yazhao Zhang: School of Energy, Power and Mechanical Engineering, North China Electric Power University, Baoding 071003, China

Energies, 2017, vol. 10, issue 7, 1-13

Abstract: The contamination deposition characteristics of insulators can be used in the development of antifouling work. Using COMSOL software, numerical simulations on the pollution-deposited performance of a porcelain three-umbrella insulator and porcelain bell jar insulator in a wind tunnel were conducted, and the simulated results were compared with the tested results. The comparison shows that the deposit amount is consistent with the order of magnitude and presents a similar tendency with Direct Current (DC) voltage variation; then the rationality of the simulation is verified. Based on these results, simulations of the natural contamination deposition on porcelain insulators and the distribution of pollution along the umbrella skirt were performed. The results indicates that, under a same wind speed, contamination of the porcelain three-umbrella insulator and porcelain bell jar insulator under DC voltage was positively correlated with the particle size. With the same particle size, the proportion of the deposit amount under DC voltage ( NSDD DC ) to the deposit amount under AC voltage ( NSDD AC ) of both insulators decreases with the increase in wind speed. However, the ratio increases as particle size increase. At a small wind speed, the deposit amount along the umbrella skirt of the two insulators displays a U-shaped distribution under DC voltage while there is little difference in the contamination amount of each skirt under Alternating Current (AC) voltage.

Keywords: porcelain insulator; contamination deposition characteristics; deposit amount; voltage type; particle size; wind speed (search for similar items in EconPapers)
JEL-codes: Q Q0 Q4 Q40 Q41 Q42 Q43 Q47 Q48 Q49 (search for similar items in EconPapers)
Date: 2017
References: View complete reference list from CitEc
Citations: View citations in EconPapers (3)

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