Direct Fluorination Induced Variation in Interface Discharge Behavior Between Polypropylene and Silicone Rubber Under AC Voltage

Gao, Yu; Yuan, Yanqiu; Chen, Lingying; Huang, Shihao; Du, B. X.

doi:10.1109/access.2018.2829845

Cited by 10 publications

(21 citation statements)

References 32 publications

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“…Du et al [79] investigated the PD-initiated light emission phenomenon to understand the mechanisms governing the local breakdown of the contact area. They used the simplified interface contact model, which was formerly proposed in [52,53,58,60].…”

Section: Physical and Chemical States Before And After Electrical Bre...mentioning

confidence: 99%

Dielectric Strength of Polymeric Solid–Solid Interfaces under Dry-Mate and Wet-Mate Conditions

Kantar

2021

Energies

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One of the most important causes of insulation system failure is the breakdown of the interface between two solid dielectrics; understanding the mechanisms governing this breakdown phenomenon is therefore critical. To that end, investigating and reviewing the practical limitations of the electrical breakdown strength of solid–solid interfaces present in insulating components is the primary objective of this work. The published literature from experimental and theoretical studies carried out in order to scrutinize the effects of the presence of solid–solid interfaces is investigated and discussed, considering macro, micro, and nano-scale characteristics. The reviewed literature suggests that solid–solid interfaces in accessories have non-uniform distributions of electrical fields within them in comparison to cables, where the distribution is mostly radial and symmetrical. Many agree that the elastic modulus (elasticity), radial/tangential pressure, surface smoothness/roughness, and dielectric strength of the ambient environment are the main parameters determining the tangential AC breakdown strength of solid–solid interfaces.

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Section: Physical and Chemical States Before And After Electrical Bre...mentioning

confidence: 99%

Dielectric Strength of Polymeric Solid–Solid Interfaces under Dry-Mate and Wet-Mate Conditions

Kantar

2021

Energies

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“…The electric field E can be calculated by potential φ :

E = - \nabla φ

A large number of experimental results indicate that the significant leakage current can be observed on the insulator surface on the condition of HVDC, and its value has a great influence on the surface charge characteristics [19, 33–35]. The surface current J s is closely related to the surface conductivity γ s and the tangential electric field E t on the solid–insulating material surface [36]

J_{normals} = \nabla \cdot false(γ_{normals} \cdot {bold-italicE}_{t} false)

The surface conductivity γ s has an exponential relationship with the tangential field E t on the insulator surface [36, 37]

γ_{normals} = γ_{s 0} \cdot {normale}^{α E_{t}}

where γ s0 is the basic conductivity and α is the correlation coefficient between surface conductivity and electric field.…”

Section: Model Descriptionmentioning

confidence: 99%

“…A large number of experimental results indicate that the significant leakage current can be observed on the insulator surface on the condition of HVDC, and its value has a great influence on the surface charge characteristics [19,[33][34][35]. The surface current J s is closely related to the surface conductivity γ s and the tangential electric field E t on the solid-insulating material surface [36] J…”

Section: Introductionmentioning

confidence: 99%

Dynamics of surface charge and electric field distributions on basin‐type insulator in GIS/GIL due to voltage polarity reversal

et al. 2020

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In this study, a simulation model of surface charge accumulation has been established. The model considers three accumulation ways, i.e. electrical conduction within the gas, through insulator volume and along the insulator surface. The generation, diffusion, drift and recombination of charge carriers are also taken into account. Based on it, the influence of polarity reversal, reversal time on surface charge and electric field distribution on a basin-type insulator are studied. The polarity of the surface charges and the direction of the electric field change after the voltage polarity reversal. When the preload voltage is equal to reversal voltage, the surface charge and the electric field distributions at steady state before and after voltage polarity reversal are all the same with opposite sign, and not affected by the reversal time. However, the time to reach the steady state varies with different reversal time. The steady-state surface charge and electric field increased with the rise of reversal voltage. The transient normal and tangential electric field would not exceed the value of the steady state, which means voltage polarity reversal has no additional influence on insulation performance. This research can provide guidance to the design and manufacture of DC GIS/GIL.

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“…The state of the insulator surface also has a large impact on surface conductivity. Recently, surface fluorination [36,37], low-temperature plasma treatment [27,28] and nano coating [26,38,39] have been introduced to treat the insulator surface to inhibit the surface charge accumulation, and the surface conductivity will fluctuate within a certain range after such treatments [14]. In this study, the surface conductivity is adjusted by changing the basic conductivity s0 .…”

Section: Influence Of Surface Conductivitymentioning

confidence: 99%

Transition of the dominant charge accumulation mechanism at a Gas‐solid interface under DC voltage

Luo

Tang

Pan

et al. 2020

IET Generation, Transmission & Distribution

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Direct Fluorination Induced Variation in Interface Discharge Behavior Between Polypropylene and Silicone Rubber Under AC Voltage

Cited by 10 publications

References 32 publications

Dielectric Strength of Polymeric Solid–Solid Interfaces under Dry-Mate and Wet-Mate Conditions

Dielectric Strength of Polymeric Solid–Solid Interfaces under Dry-Mate and Wet-Mate Conditions

Dynamics of surface charge and electric field distributions on basin‐type insulator in GIS/GIL due to voltage polarity reversal

Transition of the dominant charge accumulation mechanism at a Gas‐solid interface under DC voltage

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