Surface charge and flashover characteristics of fluorinated PP under pulse voltage

Du, B. X.; Huang, P. H.; Xing, Yunqi

doi:10.1049/iet-smt.2016.0103

Cited by 22 publications

(13 citation statements)

References 27 publications

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“…To obtain charge distribution on spacer surface, some methods were proposed many years ago and have still been utilised until now, such as Lichtenberg figure [6], Pockels effect method [7], electrostatic probe method [8] etc. Lichtenberg figure could only provide an intuitive image of surface charge distribution [9].…”

Section: Introductionmentioning

confidence: 99%

Surface charge distribution patterns of a truncated cone‐type spacer for high‐voltage direct current gas‐insulated metal‐enclosed transmission line/gas‐insulated metal‐enclosed switchgear

Xue

Wang

et al. 2018

IET Science, Measurement & Technology

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Section: Introductionmentioning

confidence: 99%

Surface charge distribution patterns of a truncated cone‐type spacer for high‐voltage direct current gas‐insulated metal‐enclosed transmission line/gas‐insulated metal‐enclosed switchgear

Xue

Wang

et al. 2018

IET Science, Measurement & Technology

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“…PP films with different thicknesses (20, 60 and 100 µm) were prepared by controlling the tableting machine [6], [17]. All the specimens were wiped by using the pure ethanol and kept in the dust free environment at room temperature for more than 24 h before the experiments.…”

Section: Methodsmentioning

confidence: 99%

“…The negative corona charging and surface potential decay (SPD) characteristics of nonwoven PP fabrics have been investigated to analyze dielectric properties of the film capacitors [16]. Du et al have studied the effects of direct fluorination on surface charge accumulation and decay of PP film [17]. The effects of different temperature, voltage waveforms and nanoparticles on surface charge and trap characteristics of PP film have been researched by other scholars respectively [18]- [20].…”

Section: Introductionmentioning

confidence: 99%

Influence of Polarization and Non-Uniform Electric Field on Failure Characteristics of Polypropylene Film

Liu

Dong

et al. 2020

IEEE Access

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Polypropylene (PP) film is widely used in the high energy density capacitors due to its excellent electrical properties. However, polarization and non-uniform electric field have great impact on the dielectric reliability of PP films, which were investigated in this paper focusing on the failure characteristics. By using the polarization and depolarization current method, the polarization tests of PP films with different thickness were conducted to reveal the variation of the capacitance, dielectric loss and volume resistivity. The accumulation of space charge was measured based on PEA method, and then the trap density and trap depth of PP films at different polarization levels were calculated. Finally, the DC breakdown properties at non-uniform electric field were analyzed based on the breakdown voltage and the quantitative indication of breakdown craters. Obtained results reveal that the increasing polarization degree causes the decrease in the volume resistivity, the increase in the polarization current, dielectric constant and dielectric loss. In addition, the trap density and trap depth both increase that promote the accumulation of space charge. The breakdown voltage, failure area and angular second moment of breakdown craters show the increasing tendency with the increase of the electric-field uniformity, but the decreasing tendency with increasing polarization degree. INDEX TERMS Polypropylene film, polarization degree, non-uniform electric field, failure characteristics , quantitative indication of breakdown craters.

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“…The surface charge of the RIP core under positive DC voltage was Energies 2019, 12, x FOR PEER REVIEW 2 of 14 distribution depends on the conductivity, which results in surface charge accumulation on the RIP wall bushing core's surface [6]. The presence of the surface charge may reduce the insulation performance of the gas-solid interface [7,8]. The surface charge phenomenon has been widely studied.…”

Section: Introductionmentioning

confidence: 99%

Study on Surface Charge Accumulation Characteristics of Resin Impregnated Paper Wall Bushing Core Under Positive DC Voltage

et al. 2019

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As a critical component of a high-voltage direct current (HVDC) transmission system, resin impregnated paper (RIP) wall bushing has become a weak point because of its surface charge accumulation. This paper studies a model RIP wall bushing core designed by the equal capacitance method. The stationary resistive field along the gas-solid interface of the RIP wall bushing core is investigated theoretically by a gas model, which considers the non-linearly field-dependent volume conductivity. The results show that the gas conductivity along the core surface tends to be an arched distribution from the high-voltage conductor to the end shielding screen. The surface charge mainly accumulates at the turning point of the radius, which may threaten the core's insulation. Then, the surface charge is obtained through a measurement system, where the experimental results are highly consistent with the simulation results. Considering the time constant of charge dissipation is nearly 15 min, it would be better to measure the surface charge on one axial direction of RIP wall bushing core after each voltage application. The simulation and experimental results of this paper can guide the design of a RIP wall bushing core.

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Surface charge and flashover characteristics of fluorinated PP under pulse voltage

Cited by 22 publications

References 27 publications

Surface charge distribution patterns of a truncated cone‐type spacer for high‐voltage direct current gas‐insulated metal‐enclosed transmission line/gas‐insulated metal‐enclosed switchgear

Surface charge distribution patterns of a truncated cone‐type spacer for high‐voltage direct current gas‐insulated metal‐enclosed transmission line/gas‐insulated metal‐enclosed switchgear

Influence of Polarization and Non-Uniform Electric Field on Failure Characteristics of Polypropylene Film

Study on Surface Charge Accumulation Characteristics of Resin Impregnated Paper Wall Bushing Core Under Positive DC Voltage

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