Search Results - "Sun, Potao"

Magnetically gradient-distributed microcapsule/epoxy composites: Low capsule load and highly targeted self-healing performance by Sima, Wenxia, Shao, Qianqiu, Sun, Potao, Liang, Chen, Yang, Ming, Yin, Ze, Deng, Qin

“…•A targeted self-healing composite was fabricated under capsule load as low as 4 wt%.•The magnetic guiding method achieves a fourfold rise in local capsule…”
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Influence of thermal aging on the breakdown characteristics of transformer oil impregnated paper by Sun, Potao, Sima, Wenxia, Yang, Ming, Wu, Jingyu

“…For a long time, thermal effect, as a major factor for insulation aging, is a great challenge to the safe operation of power transformers. During the…”
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Study on voltage-number characteristics of transformer insulation under transformer invading non-standard lightning impulses by Sun, Potao, Sima, Wenxia, Yang, Ming, Lan, Xing, Wu, Jingyu

“…According to the IEC Standard, the insulation performances of power apparatus under lightning impulse voltages are evaluated by the withstand test of standard…”
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Space charge behavior evolution of thermal-aged double-layered polyimide films by Jiang, Xiongwei, Peng, Qingjun, Sima, Wenxia, Sun, Potao, Yang, Ming

“…Polyimide film (PI) is widely used as dry-type smoothing reactor insulation for ultra-high voltage direct current (UHVDC) projects. In practice, the…”
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Investigation of dielectric properties of polyethylene terephthalate under different aging temperatures by Sima, Wenxla, Jiang, Xiongwei, Peng, Qingjun, Sun, Potao

“…The polyethylene terephthalate (PET) is widely used in dry-type insulation application because of its excellent insulation properties. In practice, thermal…”
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Super Electrical Insulating Materials Based on Honeycomb‐Inspired Nanostructure: High Electrical Strength and Low Permittivity and Dielectric Loss by Sun, Potao, Li, Chuang, Sima, Wenxia, Yuan, Tao, Yang, Ming, Chen, Yongqing

“…The high breakdown field strength is the most important index to evaluate the performance of insulating materials. It is theoretically found that the breakdown…”
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Accumulative effect of repeated lightning impulses on transformer insulation: mechanism analysis by Sun, Potao, Sima, Wenxia, Yang, Ming, Wu, Jingyu, Hua, Jiefang

“…During the decades-long operation, oil paper insulation in power transformers may suffer the effect of thousands of lightning impulses. Such interesting but…”
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Effect of space charge on the accumulative characteristics of oil paper insulation under repeated lightning impulses by Sima, Wenxia, Sun, Potao, Yang, Ming, Yang, Qing, Wu, Jingyu

“…Repeated impulses have long been considered to affect the insulation properties of electrical equipment. This interesting but rarely studied phenomenon may…”
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Nondestructive 3D Imaging of Microscale Damage inside Polymers—Based on the Discovery of Self‐Excited Fluorescence Effect Induced by Electrical Field by Sima, Wenxia, Tang, Xinyu, Sun, Potao, Sun, Zhenkun, Yuan, Tao, Yang, Ming, Zhu, Chun, Shi, Zeyan, Deng, Qin

“…The development of high‐precision, non‐destructive, and three‐dimensional (3D) in situ imaging of micro‐scale damage inside polymers is extremely challenging…”
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A Promising Nano-Insulating-Oil for Industrial Application: Electrical Properties and Modification Mechanism by Chen, Jiaqi, Sun, Potao, Sima, Wenxia, Shao, Qianqiu, Ye, Lian, Li, Chuang

“…Despite being discovered more than 20 years ago, nanofluids still cannot be used in the power industry. The fundamental reason is that nano-insulating oil has…”
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Physicochemical Characteristics and Dynamic Charge Mapping in Thermally Aged Two-Layered Polymer Considering Surface States: Experiment and Simulation by Jiang, Xiongwei, Sima, Wenxia, Chen, George, Peng, Qingjun, Sun, Potao

“…Under operational conditions of high electric fields and elevated temperatures, the accumulation of space charges at multilayer insulation interfaces is often…”
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Breakdown characteristics of oil-impregnated paper and influential factors for damped alternating oscillation waveforms by Sima, Wenxia, Wu, Jingyu, Sun, Potao, Yang, Ming, Hua, Jiefang

“…As striking lightning impulse waveforms in power transformers are quite different from the standard lightning impulse waveform (SLIW) used in the withstand…”
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Optimization and Experimental Study of the Semi-Closed Short-Gap Arc-Extinguishing Chamber Based on a Magnetohydrodynamics Model by Jia, Wenbin, Sima, Wenxia, Yuan, Tao, Yang, Ming, Sun, Potao

“…The multi-chamber arc-extinguishing structure (MAS), which consists of a lot of semi-closed short-gap arc-extinguishing chambers (SSAC) in series, can be used…”
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Effect of thermal ageing on space charge characteristics in double-layered polyester film by Jiang, Xiongwei, Sima, Wenxia, Peng, Qingjun, Yang, Ming, Sun, Potao

“…To understand the effect of thermal ageing mechanism on space charge formation and dissipation in double-layered polyester films (PET), the time dependence of…”
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Development and distribution of surface charge on epoxy resin under dc electric field in different gases by Sima, Wenxia, Xu, Hang, Sun, Potao, Shao, Qianqiu, Yin, Ze

“…Under DC voltage, charge accumulates on the break insulation of mechanical DC circuit breakers, distorting the local electric field, which increases the risk…”
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Review of accumulative failure of winding insulation subjected to repetitive impulse voltages by Sun, Potao, Sima, Wenxia, Jiang, Xiongwei, Zhang, Dingfei, He, Jiahui, Ye, Lian

“…The premature failure phenomenon that occurs in solid insulation under the application of repetitive impulse voltages is known as the accumulative effect of…”
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Study on the accumulative effect of repeated lightning impulses on insulation characteristics of transformer oil impregnated paper by Sima, Wenxia, Sun, Potao, Yang, Qing, Yuan, Tao, Lu, Chen, Yang, Ming

“…Oil-paper insulation, as a major insulation mode used in power transformers, is continuously and unavoidably subjected to repeated lightning impulses, which…”
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Effect of nanoparticles on impulse breakdown performance of propylene carbonate based on modified Kerr electro-optic measurements by Sima, Wenxia, Guo, Hongda, Sun, Potao, Chen, Qiulin, Song, He

“…Impulse breakdown test results show the breakdown strengths of propylene carbonate modified by Al 2 O 3 nanoparticles and Fe 3 O 4 nanoparticles are improved…”
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Impact of time parameters of lightning impulse on the breakdown characteristics of oil paper insulation by Sima, Wenxia, Sun, Potao, Yang, Ming, Wu, Jingyu, Hua, Jiefang

“…At present, the insulation performances of electrical apparatus under lightning impulse voltages are always evaluated by the withstand test of standard…”
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Failure Characteristics and Mechanism of Nano-Modified Oil-Impregnated Paper Subjected to Repeated Impulse Voltage by Sun, Potao, Sima, Wenxia, Zhang, Dingfei, Jiang, Xiongwei, Zhang, Huangjing, Yin, Ze

“…Nano-modification is a prospective method for improving the electrical properties of transformer oil. In most situations, transformer oil combined with…”
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