Effect of pollution severity on electric field distribution along a polymeric insulator

Ali, Arshad; Nekahi, A.; McMeekin, Scott G.; Farzaneh, M.

doi:10.1109/icpadm.2015.7295346

Cited by 28 publications

(11 citation statements)

References 11 publications

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“…Whereas, the electric field in contaminated condition is higher compare to the noncontaminated layer. Effect of pollution severity on electric field distribution was studied in [24], and it was shown that electric field intensity increases with increase in pollution severity. Besides that, it was found that the current density is also higher in contaminated condition compared to the non-contaminated condition as reported earlier by Arshad (2015) [25].…”

Section: Resultsmentioning

confidence: 99%

“…Effect of pollution severity on electric field distribution was studied in [24], and it was shown that electric field intensity increases with increase in pollution severity. Besides that, it was found that the current density is also higher in contaminated condition compared to the non-contaminated condition as reported earlier by Arshad (2015) [25]. When the electric conductivity of the contamination is higher, the current density is high and the electric field is low.…”

Section: Resultsmentioning

confidence: 99%

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Electric Field and Current Density Characteristic of Contaminated Solid Insulator

Sunthrasakaran

Jamail

Kandar

2018

IJIE

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Section: Resultsmentioning

confidence: 99%

Section: Resultsmentioning

confidence: 99%

Electric Field and Current Density Characteristic of Contaminated Solid Insulator

Sunthrasakaran

Jamail

Kandar

2018

IJIE

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“…Electric field calculation along an outdoor insulator is considered to be one of the most reliable diagnostic tools. Experimental and numerical investigations have been carried out previously to locate defects in outdoor insulators using electric field calculations [28,29]. In this paper, various contamination and dry band conditions were considered to calculate the electric field distribution along the surface of the silicone rubber insulator.…”

Section: Electric Field Distributionmentioning

confidence: 99%

Effect of pollution severity and dry band location on the flashover characteristics of silicone rubber surfaces

et al. 2016

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This paper investigates the flashover and ageing behavior of silicone rubber insulators under various contamination and dry band conditions. Effect of pollution severity, leakage distance and dry band location on the flashover characteristics of silicone rubber insulator was investigated. Flashover voltage and electric field distribution were measured under different pollution severity levels and dry band conditions. Effect of leakage distance on flashover voltage was also studied. Tests were carried out in a climate chamber and specific values of humidity and ambient temperature were used. A commercially available simulation package, COMSOL Multiphysics, was used to validate the experimental results. Electric field and potential along a silicone rubber sample were studied under different pollution severity and dry band conditions. Fourier transform infrared spectroscopy was used to analyze the chemical changes on the insulator surface and investigate the hydrophobicity recovery property of silicone rubber after flashover tests. The results of this study will further our knowledge regarding the flashover of silicone rubber outdoor insulators under contaminated and dry band conditions and could be used to improve the existing flashover models.

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“…OSs varies from location to location. Depending upon the location of insulators, multiple factors may be acting together to cause insulators' deterioration, and these were the cause of 2nd and 3rd generation polymer insulators' failure [7][8][9][10]. Early insulators suffered from weather and degraded by UV radiations.…”

Section: Introductionmentioning

confidence: 99%

Influence of load-shedding and night on SiR insulator environmental aging under AC test voltages

et al. 2021

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Insulators play a critical role in healthy transmission under the influence of operational stresses (OSs). OSs include environmental stresses (ultraviolet-radiations, seasonal heat and humidity variations, and pollution (inert and active), etc.) and electrical stresses (electric field distribution, corona, etc.). OSs can deteriorate insulators, jeopardizing the healthy transmission. In this experimental study, four silicon rubber (SiR) insulators with different concentrations of micro and nano-silica fillers are tested in a specially designed and fabricated compact environmental chamber for 1920 h under OSs, un-scheduled load shedding, and night factors for more realistic field insulators deterioration characteristics. Insulators' potential distribution, electrical field distribution, hydrophobicity, and leakage current characteristics are considered. Experimental results reveal OSs affected insulators' leakage current profile due to hydrophobicity loss and electric field distribution variations. Moreover, SiR insulators under OSs regained insulation characteristics due to heavier inner molecule replacement to the dissipated and degraded outer lower weight insulating molecules. This property provides a reusability opportunity for SiR insulators in power system networks, unlike traditional insulators.

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Effect of pollution severity on electric field distribution along a polymeric insulator

Cited by 28 publications

References 11 publications

Electric Field and Current Density Characteristic of Contaminated Solid Insulator

Electric Field and Current Density Characteristic of Contaminated Solid Insulator

Effect of pollution severity and dry band location on the flashover characteristics of silicone rubber surfaces

Influence of load-shedding and night on SiR insulator environmental aging under AC test voltages

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