Effect of surface smoothness on tracking mechanism in XLPE-Si-rubber interfaces

Du, B. X.; Zhu, Xujun; Li, Gu; Liu, H J

doi:10.1109/tdei.2011.5704508

Cited by 51 publications

(30 citation statements)

References 32 publications

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“…Study of insulating materials and BDS of applications for cables and accessories have been covered to a large extent in the literature [1][2][3][4][5][6][7][8][9][10]. The impact of contact pressure and surface roughness on the tangential BDS have been covered in [1,2,5,6,10], and it has been reported that higher interfacial pressure and smoother surface led to an increased BDS.…”

Section: Introductionmentioning

confidence: 99%

“…The impact of contact pressure and surface roughness on the tangential BDS have been covered in [1,2,5,6,10], and it has been reported that higher interfacial pressure and smoother surface led to an increased BDS. There is, however, still a lack of knowledge on the dominating mechanisms in the interfacial breakdown phenomenon, while the majority of research articles focus on the complete designs of joints and accessories as a whole.…”

Section: Introductionmentioning

confidence: 99%

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Longitudinal AC breakdown voltage of XLPE-XLPE interfaces considering surface roughness and pressure

Kantar

Mauseth

Ildstad

et al. 2017

IEEE Trans. Dielect. Electr. Insul.

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The interfacial breakdown between two dielectric surfaces has been reported to represent one of the principal causes of failure for power cable joints and connectors; thus, a better understanding of interfacial breakdown mechanisms is vital. The primary purpose of this paper is to investigate the influence of the surface roughness and interfacial pressure on the tangential AC breakdown strength (BDS) of solid-solid interfaces experimentally. The three-dimensional surface texture parameters are utilized to characterize the morphology of the surfaces. Experiments were performed using samples made of cross-linked polyethylene (XLPE) at three different contact pressures. The surface roughness was varied by polishing the surfaces using four different sandpapers of different roughness. Each surface topography was then assessed using a 3-D optical profilometer. Next, the samples were assembled under ambient laboratory conditions. The experimental results showed a good correlation between the tangential BDS and the surface roughness. The results suggested that reducing the surface roughness resulted in decreased mean height of the surface asperities by nearly 97% and increased the real contact area of the interface considerably. As a result, the tangential BDS rose by a factor of 1.85 -2.15 with increasing pressure. Likewise, the increased contact pressure yielded augmented tangential BDS values by a factor of 1.4 -1.7 following the decrease of the roughness.

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Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Longitudinal AC breakdown voltage of XLPE-XLPE interfaces considering surface roughness and pressure

Kantar

Mauseth

Ildstad

et al. 2017

IEEE Trans. Dielect. Electr. Insul.

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“…In recent years, the fractal geometry concept has been used to evaluate tracking patterns formed on the surface of polymeric materials as a result of aging tests. Du et al used it to analyze tracking patterns formed on the surfaces of cross-linked polyethylene (XLPE)-Si-rubber samples [7]. Kuntman et al aged polyester samples according to the ASTM D2303 standard and analyzed tracking patterns by using fractal geometry [8].…”

Section: Introductionmentioning

confidence: 99%

An investigation on characteristics of tracking failure in epoxy resin with harmonic and fractal dimension analysis

Ispirli¹,

Ersoy²

2018

Turk J Elec Eng & Comp Sci

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Epoxy resins have excellent mechanical and electrical properties; thus, they are commonly preferred in the electrical-electronic sector as insulation materials. These insulation materials experience degradation such as breakdown, tracking, or treeing. Therefore, safety and reliability tests of insulation materials have great importance in estimating the performance of insulation. These tests must be carried out to decrease the risk of electrical insulation fault. In this study, the relationship between tracking failures and the data obtained during experiments was evaluated. Tracking failure performance of epoxy resin was investigated using the IEC 60112 test standard, which is known as the comparative tracking index test. Leakage current data, collected from the experimental setup recorded from a ground electrode, were decomposed by using the Fourier transform method. The 3rd, 5th, and 7th harmonic distortion components of the leakage current data were calculated and their relationship with the number of drops falling on the sample was interpreted. Then the harmonic distortion components relationship was explained under dirty and clean surface conditions. We explained the tracking pattern formed on the surfaces of the samples after completion of the experiments was decomposed using image processing techniques. The capacity, information, and correlation dimensions of the resulting tracking patterns were calculated using fractal dimension analysis. Shapes in the same terms were examined using fractal dimension analysis.

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“…electric breakdown strength (BDS) of the interface notably. They are, thus, likely to initiate partial discharges (PD), electrical treeing and a complete flashover might eventually follow [1]- [3], [5].…”

Section: Introductionmentioning

confidence: 99%

Tangential AC breakdown strength of solid-solid interfaces considering surface roughness

Kantar

Mauseth

Ildstad

et al. 2017

2017 IEEE Conference on Electrical Insulation and Dielectric Phenomenon (CEIDP)

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Abstract-Primary purpose of this paper is to study the influence of the surface roughness and interfacial pressure on the tangential AC breakdown strength (BDS) of solid-solid interfaces experimentally. Three-dimensional surface texture parameters are utilized to characterize the morphology of the polymer surfaces. Experiments were performed using samples made of crosslinked polyethylene (XLPE) at three different contact pressures. Surface roughness was varied by polishing the surfaces using four different sandpapers of different roughness. Each surface topography was then assessed using a 3 − D optical profilometer. Next, the samples were assembled under ambient laboratory conditions. Experimental results showed a good correlation between the tangential BDS and the surface roughness. The results suggested that reducing the surface roughness resulted in decreased mean height of the surface asperities by nearly 97%. As a result, the tangential BDS rose by a factor of 1.85 − 2.15 with increasing pressure. Likewise, increased contact pressure yielded augmented tangential BDS values by a factor of 1.4 − 1.7 following the decrease of the roughness.

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Effect of surface smoothness on tracking mechanism in XLPE-Si-rubber interfaces

Cited by 51 publications

References 32 publications

Longitudinal AC breakdown voltage of XLPE-XLPE interfaces considering surface roughness and pressure

Longitudinal AC breakdown voltage of XLPE-XLPE interfaces considering surface roughness and pressure

An investigation on characteristics of tracking failure in epoxy resin with harmonic and fractal dimension analysis

Tangential AC breakdown strength of solid-solid interfaces considering surface roughness

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