IEEE Transactions on Dielectrics and Electrical Insulation最新文献_第9页

Repetitive Controllable Impulse Shapes for Versatile Motor Insulation System Diagnostics 用于多功能电机绝缘系统诊断的重复可控脉冲形状

IF 3.3 3区工程技术

IEEE Transactions on Dielectrics and Electrical Insulation Pub Date : 2026-10-01 Epub Date: 2026-03-12 DOI: 10.1109/TDEI.2026.3692768

T. J. Å. Hammarström;S. M. Gubanski

{"title":"Repetitive Controllable Impulse Shapes for Versatile Motor Insulation System Diagnostics","authors":"T. J. Å. Hammarström;S. M. Gubanski","doi":"10.1109/TDEI.2026.3692768","DOIUrl":"https://doi.org/10.1109/TDEI.2026.3692768","url":null,"abstract":"This article demonstrates a new approach to investigating partial discharge (PD) behavior in high-voltage motor insulation systems. The method utilizes controllable power electronic sources for creating a versatile voltage wave shape that resembles an oscillating impulse, often found in the turn-to-turn insulation of electric motor windings. Voltage flank amplitudes and rise times of the wave shape can individually be controlled for investigating their impact. The method is usable in the machine design process as well as suitable to simulate the impact of multilevel pulsewidth-modulated (PWM) solutions.The influence of the flank width and impulse duration on partial discharge inception voltage (PDIV) is revealed at varying pulse sequences for a twisted pair test object. In addition, PD appearance under narrow overshoot pulses is investigated, showing that sufficiently short pulses may not introduce discharges, which becomes important when high-frequency applications act on the insulation. If, alternatively, such short pulses are sufficiently large, a strong PD activity takes place. The types of PD activity revealed in this work are suitable for assessing their impact on insulation degradation by means of artificial intelligence (AI)-based diagnostic techniques.","PeriodicalId":13247,"journal":{"name":"IEEE Transactions on Dielectrics and Electrical Insulation","volume":"33 5","pages":"3987-3995"},"PeriodicalIF":3.3,"publicationDate":"2026-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"149124501","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Improvement Mechanism of Voltage Distribution During Breakdown Process in Double-Break VCBs With Bridge Resistor 桥式电阻双断vcb击穿过程中电压分布的改善机理

IF 3.3 3区工程技术

IEEE Transactions on Dielectrics and Electrical Insulation Pub Date : 2026-10-01 Epub Date: 2025-10-27 DOI: 10.1109/TDEI.2025.3625926

Jingyu Shen;Jun Chen;Jiangang Ding;Zhiyuan Liu;Yingsan Geng;Jianhua Wang

{"title":"Improvement Mechanism of Voltage Distribution During Breakdown Process in Double-Break VCBs With Bridge Resistor","authors":"Jingyu Shen;Jun Chen;Jiangang Ding;Zhiyuan Liu;Yingsan Geng;Jianhua Wang","doi":"10.1109/TDEI.2025.3625926","DOIUrl":"https://doi.org/10.1109/TDEI.2025.3625926","url":null,"abstract":"Bridge resistor-capacitor is considered an effective voltage sharing measure for improving the insulation performance of multibreak vacuum circuit breakers (VCBs). Nevertheless, the underlying mechanism of improvement introduced by the bridge resistor remains unclear. This article aims to quantitatively determine the influence of the bridge resistor on the voltage distribution during the lightning impulse breakdown (BD) process in double-break VCB through equivalent circuit modeling. On this basis, the associated improvement mechanism is elucidated. The equivalent circuit is established based on a multistage BD model of a single break, considering the expansion of plasma clouds in vacuum. The results reveal that during the asynchronous BD, the bridge resistor <inline-formula> <tex-math>${R}_{text {b}}$ </tex-math></inline-formula> induces a voltage balancing process between breaks and grading capacitors by impeding the discharge of the BD-side capacitor. This converts the charging in BD break after insulation recovery (IR) from negative to positive, thereby suppressing the over-voltage in non-BD break. As <inline-formula> <tex-math>${R}_{text {b}}$ </tex-math></inline-formula> increases from 0 to 10 k<inline-formula> <tex-math>$Omega $ </tex-math></inline-formula>, the voltage difference ratio between the two breaks is reduced by up to 54.4% and the overvoltage is delayed beyond <inline-formula> <tex-math>$20~mu $ </tex-math></inline-formula>s. The results can provide a theoretical basis for the voltage sharing design in multibreak VCBs.","PeriodicalId":13247,"journal":{"name":"IEEE Transactions on Dielectrics and Electrical Insulation","volume":"33 5","pages":"3958-3967"},"PeriodicalIF":3.3,"publicationDate":"2026-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"149124581","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

A Multiscale Diagnostic Approach for Oil-Paper Insulation Aging Using GAN-Enhanced Raman Spectroscopy 基于gan增强拉曼光谱的油纸绝缘老化多尺度诊断方法

IF 3.3 3区工程技术

IEEE Transactions on Dielectrics and Electrical Insulation Pub Date : 2026-10-01 Epub Date: 2026-01-29 DOI: 10.1109/TDEI.2026.3659430

Ruimin Song;Haoyuan Tian;Hong Liu;Dingkun Yang;Pinyi Wang;Weigen Chen

{"title":"A Multiscale Diagnostic Approach for Oil-Paper Insulation Aging Using GAN-Enhanced Raman Spectroscopy","authors":"Ruimin Song;Haoyuan Tian;Hong Liu;Dingkun Yang;Pinyi Wang;Weigen Chen","doi":"10.1109/TDEI.2026.3659430","DOIUrl":"https://doi.org/10.1109/TDEI.2026.3659430","url":null,"abstract":"The aging of oil-paper insulation systems significantly influences the insulation performance of electrical equipment. Raman spectroscopy can detect changes in the composition of insulating oil, enabling the monitoring of the aging state of oil-paper insulation equipment. However, the scarcity of aging samples hinders the application of data-driven diagnostics. Therefore, this article proposes a novel framework combining Wasserstein generative adversarial networks with gradient penalty (WGAN-GP) and a multiscale 1-D convolutional neural network (1D-CNN). The WGAN-GP generates high-fidelity synthetic samples, enlarging training datasets, and the multiscale 1D-CNN is designed with parallel convolutional kernels of varying dilation rates (receptive fields of 3, 5, and 7) to capture both local peak features and global spectral trends. The proposed method achieved a diagnostic accuracy of 99.35% across ten aging stages. The diagnostic network was also evaluated using the training set and 20 real-world transformer samples, ultimately confirming the method’s ability to accurately diagnose the aging stages of oil-paper insulated electrical equipment.","PeriodicalId":13247,"journal":{"name":"IEEE Transactions on Dielectrics and Electrical Insulation","volume":"33 5","pages":"3198-3207"},"PeriodicalIF":3.3,"publicationDate":"2026-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"149125459","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Density Functional Theory Deciphering of Electric-Field Response in PTFE Linking Molecular Polarization to Dielectric Breakdown 密度泛函理论解析聚四氟乙烯的电场响应，连接分子极化与介电击穿

IF 3.3 3区工程技术

IEEE Transactions on Dielectrics and Electrical Insulation Pub Date : 2026-10-01 Epub Date: 2026-03-07 DOI: 10.1109/TDEI.2026.3691139

Yi Li;Zhiyi Pang;Jiwen Huang;Rui Qin

{"title":"Density Functional Theory Deciphering of Electric-Field Response in PTFE Linking Molecular Polarization to Dielectric Breakdown","authors":"Yi Li;Zhiyi Pang;Jiwen Huang;Rui Qin","doi":"10.1109/TDEI.2026.3691139","DOIUrl":"https://doi.org/10.1109/TDEI.2026.3691139","url":null,"abstract":"As a high-performance insulating material, Teflon encounters the challenge of electric-field-induced aging under extreme electrical conditions. In this study, density functional theory (DFT) calculations are employed to systematically elucidate the damage mechanism of the microstructure of polytetrafluoroethylene (PTFE) caused by external electric fields. A simplified molecular model of PTFE is constructed for this purpose. The results indicate that when the electric-field intensity reaches 11.78 V/nm, both the C–C and C–F bonds break. The molecular potential energy increases with the rise in field strength, leading to a significant decrease in stability. Electronic structure analysis reveals that the highest occupied molecular orbital (HOMO) energy level rises and the lowest unoccupied molecular orbital (LUMO) energy level drops as the electric field increases, causing the energy gap to decrease from 8.53 to 0.39 eV. This significant reduction in the energy gap, from 8.53 to 0.39 eV, indicates a transition in the material’s electronic structure from that of an insulator to a semiconductor. This reveals the microscopic mechanism by which the intrinsic insulating property is critically degraded under extreme electric fields. Furthermore, the enhanced molecular polarity index (MPI) and internal charge separation confirm the intensification of polarization, while the redshift of the characteristic peaks in the infrared/Raman spectrum provides additional evidence of bond energy decay. This study elucidates the microscopic mechanism of PTFE electrical aging at the electronic-atomic scale, offering a theoretical foundation for nondestructive evaluation of insulation status and life prediction.","PeriodicalId":13247,"journal":{"name":"IEEE Transactions on Dielectrics and Electrical Insulation","volume":"33 5","pages":"3298-3306"},"PeriodicalIF":3.3,"publicationDate":"2026-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"149125536","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Cyber-Resilient Dissolved Gas Analysis Fault Diagnosis for Power Transformers Using Physics-Constrained Semisupervised Adversarial Learning 基于物理约束半监督对抗学习的电力变压器网络弹性溶解气体分析故障诊断

IF 3.3 3区工程技术

IEEE Transactions on Dielectrics and Electrical Insulation Pub Date : 2026-10-01 Epub Date: 2026-03-11 DOI: 10.1109/TDEI.2026.3691738

Vigneshwaran Basharan;Mithun Mondal;Palash Mishra

{"title":"Cyber-Resilient Dissolved Gas Analysis Fault Diagnosis for Power Transformers Using Physics-Constrained Semisupervised Adversarial Learning","authors":"Vigneshwaran Basharan;Mithun Mondal;Palash Mishra","doi":"10.1109/TDEI.2026.3691738","DOIUrl":"https://doi.org/10.1109/TDEI.2026.3691738","url":null,"abstract":"Dissolved gas analysis (DGA) is the primary incipient-fault diagnostic technique for oil-immersed power transformers. Field datasets suffer from label scarcity, severe class imbalance, and growing cybersecurity exposure. This article proposes MRC-SSAT, a unified physics-grounded framework that simultaneously addresses all three challenges. A majority-vote pseudo-labeling strategy fusing IEC 60599, the Duval Triangle, and the Duval Pentagon generates supervisory signals from unlabeled DGA data with strong interstandard agreement (<inline-formula> <tex-math>$kappa$ </tex-math></inline-formula> = 0.76–0.84), independently validated at 91.3% accuracy against expert-verified IEC TC10 labels. A DGA-specific physics-constrained conditional tabular GAN (sTableGAN) resolves class imbalance by enforcing IEC 60599 gas-ratio plausibility during synthesis. A semisupervised Transformer encoder with virtual adversarial training (VAT) and domain-aware perturbations ensures decision-boundary smoothness and cyber resilience. SHAP-based explainability confirms that learned gas importances align with IEC 60599 electrochemical principles. Benchmarking on the Lewis Transformer B field dataset confirms statistically significant superiority over 13 state-of-the-art methods: 97.1% ± 0.6% accuracy (MCC = 0.94) with only 5.3-pp accuracy degradation under projected gradient descent (PGD) attacks. Cross-dataset validation on IEC TC10 (95.8%) and CIGRE A2.43 (96.3%) confirms generalization across diverse transformer populations. Critically, Lewis B carries no expert labels; IEC TC10 and CIGRE A2.43 results therefore constitute the primary generalization evidence.","PeriodicalId":13247,"journal":{"name":"IEEE Transactions on Dielectrics and Electrical Insulation","volume":"33 5","pages":"3940-3948"},"PeriodicalIF":3.3,"publicationDate":"2026-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"149125549","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Enhancing Dielectric Performance of Acrylate-Based Elastomers via Incorporation of Polar Cyano Groups 加入极性氰基提高丙烯酸酯基弹性体介电性能

IF 3.3 3区工程技术

IEEE Transactions on Dielectrics and Electrical Insulation Pub Date : 2026-10-01 Epub Date: 2026-01-12 DOI: 10.1109/TDEI.2025.3650476

Ziqian Zhang;Qiyun Zhao;Chao Wang;Lei Han;Hui Yang;Ying Li;Lu Li

{"title":"Enhancing Dielectric Performance of Acrylate-Based Elastomers via Incorporation of Polar Cyano Groups","authors":"Ziqian Zhang;Qiyun Zhao;Chao Wang;Lei Han;Hui Yang;Ying Li;Lu Li","doi":"10.1109/TDEI.2025.3650476","DOIUrl":"10.1109/TDEI.2025.3650476","url":null,"abstract":"Dielectric elastomers (DEs) are a class of flexible intelligent materials capable of significant deformation under external electric field stimulation. However, conventional DEs typically exhibit low dielectric constants, necessitating the application of excessively high electric field strengths (>100 kV/mm) to achieve substantial actuation. In this work, we design a series of poly(butyl acrylate-co-acrylonitrile) (PBA-AN) copolymers by introducing polar cyano groups (-CN) from acrylonitrile (AN), a key polar monomer, into a butyl acrylate (BA)-based matrix, and systematically optimize the molar ratio of BA to AN. The optimal copolymer composition (PBA<sub>70</sub>-AN<sub>30</sub>, 70 mol% BA, and 30 mol% AN) endows the DE with a balanced combination of high dielectric performance and superior actuation characteristics: a high dielectric constant of 10.89 at 1 kHz, a low dielectric loss tangent of 0.0197, and a reduced Young’s modulus of approximately 0.106 MPa. At a low electric field strength of 30 kV/mm, these DEs achieve an area strain of 20%, a 4.4-fold enhancement compared to the commercial material VHB4910 that only delivers an area strain of 4.5% under identical conditions. This study presents a novel approach to the fabrication of high-performance acrylate-based DEs.","PeriodicalId":13247,"journal":{"name":"IEEE Transactions on Dielectrics and Electrical Insulation","volume":"33 5","pages":"3273-3279"},"PeriodicalIF":3.3,"publicationDate":"2026-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147884790","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Application of Nonintrusive Fault Diagnosis Based on Acoustic and Vibration Signals in Interturn Short-Circuit Faults of Synchronous Condenser Rotor Windings 基于声振动信号的非侵入式故障诊断在同步凝汽器转子绕组匝间短路故障中的应用

IF 3.3 3区工程技术

IEEE Transactions on Dielectrics and Electrical Insulation Pub Date : 2026-10-01 Epub Date: 2025-12-16 DOI: 10.1109/TDEI.2025.3645029

Minghan Ma;Guangying Jia;Keyi Bao;Yucai Wu;Xinkai Zhu

引用次数: 0

Equivalent Regulation Mechanism of Electron Density Distribution in Vacuum Arcs by Transverse Magnetic Fields and Contact Gaps 横向磁场和接触间隙对真空电弧中电子密度分布的等效调节机制

IF 3.3 3区工程技术

IEEE Transactions on Dielectrics and Electrical Insulation Pub Date : 2026-10-01 Epub Date: 2025-11-21 DOI: 10.1109/TDEI.2025.3636110

Chongyang Huang;Jishi Yan;Si Fu;Hanwen Du;Zhengbo Li;Feiran Zhang

{"title":"Equivalent Regulation Mechanism of Electron Density Distribution in Vacuum Arcs by Transverse Magnetic Fields and Contact Gaps","authors":"Chongyang Huang;Jishi Yan;Si Fu;Hanwen Du;Zhengbo Li;Feiran Zhang","doi":"10.1109/TDEI.2025.3636110","DOIUrl":"https://doi.org/10.1109/TDEI.2025.3636110","url":null,"abstract":"Taking single-break dc vacuum circuit breakers as the research object, an experimental platform for collecting characteristic information of dc vacuum arcs was established. High-speed cameras were used to capture images of the zero-zone process of vacuum arcs under transverse magnetic fields (TMFs), flat contacts, and different commutation gaps. Spectrometers were employed to collect characteristic spectral lines at Cu I 521.8 nm, from which electron temperature and electron density were calculated and analyzed. The study found that under the same operating condition with a commutation gap of 6 mm, the swastika-shaped TMF contacts can effectively regulate the spatial distribution of arc plasma. Compared with the case without magnetic field, the radial distribution uniformity of electron density is significantly improved, and the ratio of electron density between the center and the edge on the cathode contact surface decreases from 7:1 to 1.6:1. Increasing the contact gap can improve the spatial distribution uniformity of electron density. The TMF gap (6 mm) and increasing the contact gap (10 mm) under no magnetic field conditions have equivalent regulatory effects on the radial/axial distribution of electron density. Both increasing the gap and enhancing the magnetic field improve the uniformity of plasma spatial distribution and reduce the difference in electron density between the center and edge of the contact surface. The TMF can equivalently replace increasing the gap to achieve stable arc control.","PeriodicalId":13247,"journal":{"name":"IEEE Transactions on Dielectrics and Electrical Insulation","volume":"33 5","pages":"3517-3526"},"PeriodicalIF":3.3,"publicationDate":"2026-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"149124508","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Effect of Droplet Parameters on the Efficiency of Body-Effect Nanogenerators 液滴参数对体效应纳米发电机效率的影响

IF 3.3 3区工程技术

IEEE Transactions on Dielectrics and Electrical Insulation Pub Date : 2026-10-01 Epub Date: 2026-06-29 DOI: 10.1109/TDEI.2026.3708080

Xiaobo Meng;Zhe Huang;Jinglin Xie;Kailin Li;Zong Li;Xuyang Yang;Bin Cao

{"title":"Effect of Droplet Parameters on the Efficiency of Body-Effect Nanogenerators","authors":"Xiaobo Meng;Zhe Huang;Jinglin Xie;Kailin Li;Zong Li;Xuyang Yang;Bin Cao","doi":"10.1109/TDEI.2026.3708080","DOIUrl":"https://doi.org/10.1109/TDEI.2026.3708080","url":null,"abstract":"Through the study and use of new energy generation technologies related to body effect nanogenerators, it is possible to realize the efficient conversion of the large amount of hydrokinetic energy in nature and life into electrical energy. This study relies on the working principle of the body-effect nanogenerator to investigate the effects of external droplet design parameters (e.g., droplet volume, droplet drop height, and droplet drop frequency) on the generator output performance. Appropriate external parameters are explored experimentally to enable the body-effect nanogenerator to achieve higher performance while ensuring the stability of electrical output. The relationship between the electrical component parameters and the electrical characteristics of the droplet generator is analyzed, and the principle of how the design of the physical structure corresponding to the equivalent capacitance affects the output of the body-effect nanogenerator is revealed through the establishment of a concise equivalent circuit model. It is of great significance to the research in the field related to water energy harvesting.","PeriodicalId":13247,"journal":{"name":"IEEE Transactions on Dielectrics and Electrical Insulation","volume":"33 5","pages":"3832-3841"},"PeriodicalIF":3.3,"publicationDate":"2026-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"149124516","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Chalking Mechanism and Its Simulation in Silicone Rubber Under Hydrothermal Conditions 水热条件下硅橡胶的垩白机理及其模拟

IF 3.3 3区工程技术

IEEE Transactions on Dielectrics and Electrical Insulation Pub Date : 2026-10-01 Epub Date: 2026-04-16 DOI: 10.1109/TDEI.2026.3684780

Xuyang Liu;Xiyu Wang;Zikui Shen;Zhidong Jia

{"title":"Chalking Mechanism and Its Simulation in Silicone Rubber Under Hydrothermal Conditions","authors":"Xuyang Liu;Xiyu Wang;Zikui Shen;Zhidong Jia","doi":"10.1109/TDEI.2026.3684780","DOIUrl":"https://doi.org/10.1109/TDEI.2026.3684780","url":null,"abstract":"Composite insulators operating in hydrothermal environments for 5–10 years are prone to develop chalking, a severe aging phenomenon. However, replicating this process under laboratory conditions has proven challenging. In this study, a controllable artificial chalking method—termed the thermal–steam aging method—is proposed to simulate the combined effects of heat and moisture without the use of chemical catalysts. By adjusting thermal and steam aging durations, the chalking process was successfully reproduced. The equivalence between artificial and natural chalking was validated through thermogravimetric analysis (TGA), scanning electron microscopy (SEM), and Fourier transform infrared spectroscopy. The underlying chalking mechanism of silicone rubber (SR) was elucidated based on the hydrolysis of polydimethylsiloxane (PDMS): progressive oxidation of side chains reduces main-chain protection, leading to PDMS degradation via hydrolysis and filler precipitation to the surface. Furthermore, the effect of aluminum trihydrate (ATH) filler content on chalking behavior was investigated, and recommendations were provided to enhance anti-chalking performance in hydrothermal applications.","PeriodicalId":13247,"journal":{"name":"IEEE Transactions on Dielectrics and Electrical Insulation","volume":"33 5","pages":"3738-3745"},"PeriodicalIF":3.3,"publicationDate":"2026-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"149124597","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0