Erosion Suppression of Zinc Borate Filler in HTV Silicone Rubber Under AC Dry-Band Arcing

IF 3.1 3区工程技术 Q2 ENGINEERING, ELECTRICAL & ELECTRONIC

IEEE Transactions on Dielectrics and Electrical Insulation Pub Date : 2025-04-22 DOI:10.1109/TDEI.2025.3563164

Idris Ozdemir;Halil Ibrahim Uckol;Suat Ilhan;Yazid Hadjadj;Gurkan Soykan;Abdullah Aydogan;Refat Atef Ghunem

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引用次数: 0

Abstract

This article investigates the erosion suppression mechanisms of zinc borate (ZB) in high-temperature vulcanized silicone rubber (SiR) using the IEC 60587 inclined plane test and simultaneous thermogravimetric (TGA)-differential thermal analysis (DTA). Alumina tri-hydrate (ATH) is employed in this study as a reference filler for comparison with ZB filler. The dehydration of ZB is reported to start around

$350~^{\circ }$

C, whereas ATH starts dehydration at lower temperatures around

$230~^{\circ }$

C. An insignificant difference is shown in the erosion resistance between the ATH and ZB-filled composites. Both fillers are shown viable in preventing the tracking and erosion failure in the IEC 60587 inclined plane test under the critical 4.5 kV ACrms voltage. ZB is found to suppress failure with the formation of residue acting as a shield against the progression of erosion. Whereas, ATH alleviates surface temperature by promoting an internal oxidation mechanism that suppresses combustion of SiR. This study’s findings highlight the potential application of ZB as a cost-effective filler in high-temperature vulcanized SiR for outdoor insulation, particularly in regions where this filler is readily available.

查看原文本刊更多论文

HTV硅橡胶中硼酸锌填料在交流干带电弧作用下的抗冲蚀性能

采用IEC 60587斜面试验和热重（TGA）差热分析（DTA）相结合的方法研究了硼酸锌（ZB）在高温硫化硅橡胶（SiR）中的抑制冲蚀机理。本研究采用三水合氧化铝（ATH）作为参考填料，与ZB填料进行比较。ZB的脱水开始于$350~^{\circ}$ C左右，而ATH的脱水开始于$230~^{\circ}$ C左右，ATH和ZB填充复合材料的抗侵蚀性能差异不显著。在IEC 60587斜面试验中，在临界4.5 kV ACrms电压下，两种填料在防止跟踪和侵蚀失效方面都是可行的。发现ZB可以抑制破坏，形成残留物作为防止侵蚀进展的屏障。然而，ATH通过促进内部氧化机制来降低表面温度，从而抑制SiR的燃烧。本研究的发现强调了ZB作为一种具有成本效益的填料在高温硫化SiR中用于室外保温的潜在应用，特别是在这种填料容易获得的地区。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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来源期刊

IEEE Transactions on Dielectrics and Electrical Insulation 工程技术-工程：电子与电气

CiteScore

6.00

自引率

22.60%

发文量

309

审稿时长

5.2 months

期刊介绍： Topics that are concerned with dielectric phenomena and measurements, with development and characterization of gaseous, vacuum, liquid and solid electrical insulating materials and systems; and with utilization of these materials in circuits and systems under condition of use.