Comparative Properties of HTV Silicone Rubber for Composite Insulators—ATH and Silica Fillers

İlhan, Suat; Tuzun, Didem; Özdemir, Aydoğan

doi:10.1109/tdei.2020.009183

Cited by 19 publications

(10 citation statements)

References 18 publications

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“…According to a comparative study with previous investigations [2,[4][5][6]8,[16][17][18][19][20][21][22]24,26,27], variations of the results of the above-mentioned tests were revealed. These variations depend, among others, on the type of the test pieces, which are used for the tests.…”

mentioning

confidence: 89%

“…In Table 7, the results of the inclined plane test on HTV silicone rubber with ATH filler material, which is used as housing material for composite insulators, are presented. Table 7 includes results from previous studies [5,8,16,17,20], as well as from this research. From Table 7, it is obvious that when the housing material (HTV silicone rubber with ATH filler) of composite insulators is of good quality, the result of the inclined plane test will be successful, even at the highest test voltage level of IEC 60587, namely, 4.5 kV [15].…”

Section: Inclined Plane Testmentioning

confidence: 99%

“…Result at 4.5 kV Test Piece [5] Pass Standard specimens [8] Pass From sheath [16] Pass From sheath [17] Pass Half sheds [20] Pass Standard specimens This research Pass (49/50) Half sheds…”

Section: Referencementioning

confidence: 99%

“…One of the most commonly used housing materials of composite insulators is high temperature vulcanized (HTV) silicone rubber with aluminum trihydrate, or aluminum hydroxide (ATH) filler. ATH filler is used to increase mechanical properties of the silicone rubber and especially its tracking and erosion resistance [3][4][5][6][7].…”

Section: Introductionmentioning

confidence: 99%

“…The results of the above tests on the insulating housing of composite insulators depend on the concentration of ATH in the silicone rubber, as well as on the manufacturing process followed by each manufacturer [5,[20][21][22].…”

Section: Introductionmentioning

confidence: 99%

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A Proposal for the Evaluation of HTV Silicone Rubber Composite Insulators

2021

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This paper describes in detail a step-by-step methodology for obtaining specimens from the housing material (high temperature vulcanized (HTV) silicone rubber with aluminum trihydrate (ATH) filler) of composite insulators (finished products), for five well known and commonly used tests. The aim of the paper is to render practical clarifications and additions to the instructions for five tests on composite insulators provided by international standards. Additionally, the ranges of the results of these tests are presented. More specifically, shore A hardness measurement, tensile strength and elongation at break test, tear strength test, density measurement and inclined plane test were conducted on the housing material of ten, new, unaged medium voltage composite insulators made by six different manufacturers. The results of these tests are presented as a contribution to the existing knowledge and a comparative study of corresponding results of previous investigations is performed. The presented procedures for specimens’ preparation, as well as the results (arithmetical ranges), could be used as guidelines for future testing on the housing material (HTV silicone rubber with ATH filler) of composite insulators, either by researchers and manufacturers, during laboratory testing and material development processes, or by customers (distribution and transmission networks owners), during batch acceptance tests.

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mentioning

confidence: 89%

Section: Inclined Plane Testmentioning

confidence: 99%

“…Result at 4.5 kV Test Piece [5] Pass Standard specimens [8] Pass From sheath [16] Pass From sheath [17] Pass Half sheds [20] Pass Standard specimens This research Pass (49/50) Half sheds…”

Section: Referencementioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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A Proposal for the Evaluation of HTV Silicone Rubber Composite Insulators

2021

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Performance evaluation of thermally aged ATH and BN co‐doped silicone rubber nano‐micro composites for power cable applications

Vangapandu

Paul

Mishra

et al. 2022

Polymer Engineering & Sci

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Power cables are intended to operate at high temperatures over a long period which may change the performance of silicone rubber insulation used in high voltage cable accessories. Therefore, in the current study, to enhance the properties of silicone rubber, alumina try‐hydrate (ATH) and boron nitride (BN) micro and nanoparticles were added to the silicone rubber matrix. The synthesized undoped silicone rubber, silicone rubber with 40 wt% micro ATH, 7 wt% nano BN, and 10 wt% micro ATH + 5 wt% nano BN composites were thermally aged for 600 h at 180ºC. The composite properties were analyzed through electrical, thermal, and physicochemical techniques. To assess the electrical characteristics, water droplet‐initiated corona discharge studies as per IEC 60112 were conducted and leakage current, corona inception voltage, and erosion resistance were evaluated. A deep learning technique also was employed for the prediction of erosion resistance of the samples. Further, to examine the surface texture and chemical changes on the surface of the material, 3‐D microscopy and Fourier transform infrared spectroscopy (FTIR) was adopted. Finally, thermal distribution analysis was performed for all the composites by infrared thermography. The results demonstrated the suitability of nano‐micro co‐doped composites over nanocomposites and micro composites for power cable applications.

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