Effect of nanosecond rise time of pulse voltage on the surface charge of Epoxy/TiO<sub>2</sub>nanocomposites

Du, B. X.; Zhang, J. W.; Gao, Yu

doi:10.1109/tdei.2013.6451373

Cited by 29 publications

(6 citation statements)

References 50 publications

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“…However, not all dielectric doped with nano-particles could increase surface charge decay rate. For instance, epoxy doped with nano-scale TiO 2 has a relatively lower surface charge decay rate than pure epoxy [17]. In order to avoid a high initial surface potential value and increase surface charge decay rate, what kind of nano-particles is needed remains to be explored.…”

Section: Resultsmentioning

confidence: 99%

Analysis on dynamic surface potential decay of functional nanocomposite after corona discharge

Zhang

Zhou

Chen

et al. 2015

2015 IEEE 11th International Conference on the Properties and Applications of Dielectric Materials (ICPADM)

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Surface charge on insulator polymers in breakers, gas insulated switchgears and other electrical apparatuses, plays a dominant role in the insulation performance of power system. Meanwhile, the surface potential on the functional dielectric can be one of the criteria in the evaluation of the charge storage performance when the dipoles formed in polymer are taken into consideration during corona poling procedure. In order to evaluate the influence on the charge storage property of insulator polymers, the samples were charged by a unipolar corona discharge set-up. Thus, the dynamic surface electrostatic dispersion phenomenon and tendency were observed and investigated. This paper concentrates on the effects of internal nano-particle structure on its traps, as well as the stability of surface charge functions, by comparing the surface potential dynamic characteristics of silicon insulating film mixed with nano-particles and pure silicon film. Meanwhile, the dynamic behavior of surface potential has been recorded and analyzed. The results obtained have demonstrated that the formation of charge will be restrained and the rate of surface charge decay will be enhanced if a small quantity of nano-particles is dispersed in a polymer matrix. The significance of the conclusion is that it provides essential reference value and practical effect for the development of insulation engineering and also for the functional dielectric materials applied in the field of sensors and actuators and energy harvesters etc..

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Section: Resultsmentioning

confidence: 99%

Analysis on dynamic surface potential decay of functional nanocomposite after corona discharge

Zhang

Zhou

Chen

et al. 2015

2015 IEEE 11th International Conference on the Properties and Applications of Dielectric Materials (ICPADM)

Self Cite

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“…The discharge and flashover processes of the spacer surface in SF6 gas under the pulse voltage were investigated in [9], and it is inferred that considerable charges will be amassed on the spacer surface, after polarity reversal. It indicated that under the pulse voltage, the more charges accumulated on the epoxy with the decrease of the rising time of pulse voltage [10]. It is generally accepted that surface charge has a significant effect on the flashover of polymeric insulator [11].…”

Section: Introductionmentioning

confidence: 99%

Carrier mobility and trap distribution dependent flashover characteristics of epoxy resin

Jin

et al. 2017

IET Generation, Transmission & Distribution

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“…Ref. [7] discussed the surface charge behaviors after various pulse application. In addition, several scholars have established the drift-diffusion equations for the purpose of describing the charge trappingdetrapping procedure within the bulk of the insulator [8][9][10][11][12].…”

Section: Introductionmentioning

confidence: 99%

Simulation on the Surface Charge Behaviors of Epoxy Insulator by Corona Discharge

Du¹,

Liang²,

Li³

2019

Atmospheric Pressure Plasma - From Diagnostics to Applications

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A majority of the high voltage (HV) electrical equipment which has solid-gas insulation has suffered greatly from the accumulation of the surface charges generated from the corona discharge. The local electric field may be distorted by the surface charge's existence and in turn causes the surface flashover faults in excessive circumstances. Consequently, it's significant to work out the mechanism of the procedure of the surface charge accumulation. A simulation model which combines both the charge trapping-detrapping procedure and the plasma hydrodynamics was created. The outcome of the simulation has agreed with the experimental results. The corona discharge intensity rises in the initial stage and then reduces as time goes by. There are various shapes of the surface potential distribution curves at various times. The central value increases quickly with time first and at last becomes saturated. Surface charges are observed in the epoxy insulator's skin layer, some of them are mobile but some are captured by traps.

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Effect of nanosecond rise time of pulse voltage on the surface charge of Epoxy/TiO₂nanocomposites

Cited by 29 publications

References 50 publications

Analysis on dynamic surface potential decay of functional nanocomposite after corona discharge

Analysis on dynamic surface potential decay of functional nanocomposite after corona discharge

Carrier mobility and trap distribution dependent flashover characteristics of epoxy resin

Simulation on the Surface Charge Behaviors of Epoxy Insulator by Corona Discharge

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Effect of nanosecond rise time of pulse voltage on the surface charge of Epoxy/TiO2nanocomposites

Cited by 29 publications

References 50 publications

Analysis on dynamic surface potential decay of functional nanocomposite after corona discharge

Analysis on dynamic surface potential decay of functional nanocomposite after corona discharge

Carrier mobility and trap distribution dependent flashover characteristics of epoxy resin

Simulation on the Surface Charge Behaviors of Epoxy Insulator by Corona Discharge

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Product

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Effect of nanosecond rise time of pulse voltage on the surface charge of Epoxy/TiO₂nanocomposites