Impact of wind on pollution accumulation rate on outdoor insulators near shoreline

Hussain, Muhammad Majid; Farokhi, S.; McMeekin, Scott G.; Farzaneh, M.

doi:10.1109/ipmhvc.2016.8012871

Cited by 4 publications

(3 citation statements)

References 5 publications

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“…These transmission lines that carry power to end-users cross various regions, exposing all outdoor equipment to various atmospheric conditions [26][27][28][29][30][31][32][33]. Actually, the more or less complex profiles of insulators are essentially determined to meet a certain number of criteria in relation to the shape of the voltage waves and the conditions of pollution, fog, and rain.…”

Section: Introductionmentioning

confidence: 99%

“…Actually, the more or less complex profiles of insulators are essentially determined to meet a certain number of criteria in relation to the shape of the voltage waves and the conditions of pollution, fog, and rain. Understanding the fundamental aspects of outdoor insulation is, therefore, important for properly designing and monitoring practical HV transmission lines and hardware [26][27][28][29][30][31][32][33].…”

Section: Introductionmentioning

confidence: 99%

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Outdoor Insulation and Gas-Insulated Switchgears

Fofana

Brettschneider

2022

Energies

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Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Outdoor Insulation and Gas-Insulated Switchgears

Fofana

Brettschneider

2022

Energies

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“…The criterion reasonably explains the collision and deposition of particles on the insulator surface, which has certain guiding significance. Hussain et al [23] experimentally studied the effect of wind speed on ESDD and NSDD on the insulator surface, and pointed out that when the wind speed is not greater than 8m/s, the particle deposition rate increases with the increase of wind speed. When wind speed is greater than 8m/s, the particle deposition rate decreases with increasing wind speed.…”

Section: Introductionmentioning

confidence: 99%

Simulation on Deposition Characteristics of Contamination Particles in Fog-Haze Environment

Zhao

Song

2020

IEEE Access

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Fog-haze weather can aggravate the particles deposition on the insulator surface, which will cause pollution flashover. In this paper, the multiphysics software COMSOL was used to numerically simulate the particle deposition characteristics on the surface of XWP 2-160 porcelain insulator under wind tunnel conditions, and the simulation results were compared with wind tunnel test results to verify the rationality of the simulation model and the method. Based on this, the contamination deposition characteristics of this insulator on 110kV transmission lines under fog-haze environment were simulated. And the effects of wind speed, contamination concentration, and voltage type on particle deposition were analyzed. The results show that under the same conditions, the NSDD under DC voltage is the largest and it is the smallest under unelectrified state. The particle deposit amount increases approximately linearly with increasing wind speed and contamination concentration under DC voltage. In moderate fog-haze, the influence of wind speed on AC transmission line is larger than that on DC transmission line. The proportion of NSDD DC to NSDD AC displays a trend of gradual decrease with increasing wind speed and tends to be gentle gradually, and the ratio under all conditions is greater than 4. INDEX TERMS Fog-haze environment, particle deposition characteristics, wind speed, contamination concentration, voltage type.

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Comparison of AC Flashover Performance of Snow-Accreted Insulators Under Natural and Artificial Simulation Environments

Jiang

Guo

et al. 2020

IEEE Access

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The research and exploration on snow-accreted insulators have been performed in an artificial climate chamber. However, the differences in the distribution, density and compactness of snow accretion under natural and artificial simulation environments cause the flashover mechanism of snowcovered insulators to remain poorly understood. In the present work, a series of flashover tests were carried out on snow-coated glass and silicone rubber insulators in the climate chamber and at Xuefeng Mountain Natural Icing Test Base. The discrepancies in the electrical performance and flashover process of snowcovered insulators under two test environments were compared and analyzed. Results show that the arc flashover gradient of snow accreted insulator at high altitude site is higher than that in the laboratory because of the differences of the environmental parameters. Affected by the adiabatic effect and capillary action of snow layer, within the range of the study the flashover gradient of insulators covered with snow increases with the increasing in the snow thickness. The calculation of various forces applied on arcs during its propagation demonstrates that when the arc current is less than 0.2 A, the local arcs develop along the snow surface of the insulators under the action of an electrostatic force. As the current increases beyond 0.2 A, the thermal buoyancy is predominant, thereby causing arcs to levitate from the insulator surface.

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Impact of wind on pollution accumulation rate on outdoor insulators near shoreline

Cited by 4 publications

References 5 publications

Outdoor Insulation and Gas-Insulated Switchgears

Outdoor Insulation and Gas-Insulated Switchgears

Simulation on Deposition Characteristics of Contamination Particles in Fog-Haze Environment

Comparison of AC Flashover Performance of Snow-Accreted Insulators Under Natural and Artificial Simulation Environments

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