Experimental Study of the Breakdown Characteristics of Polypropylene Films Under Nanosecond Voltage Pulses

Chen, Zhiqiang; Ji, Shengchang; Jia, Wei; Tang, Junping; Guo, Fan; Li, Junna; Chen, Weiqing

doi:10.1109/tps.2018.2866061

Cited by 17 publications

(11 citation statements)

References 24 publications

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“…Metallized film capacitor (MFC) is the core energy storage device of nanosecond pulse voltage generators. The energy storage dielectric of MFC, biaxially oriented polypropylene (BOPP) film is subjected to high rise rate pulse voltage for a long period of time, which can reach up to several tens of V ns −1 to hundreds of V ns −1 level [2]. The degradation characteristics (partial discharge or breakdown) of BOPP film under nanosecond pulse voltage with high rise rate is a key issue to ensure the safe operation of capacitors and even high-power nanosecond pulse generator.…”

Section: Introductionmentioning

confidence: 99%

“…Literature [4] studied the effect of AC voltage boosting rate on the breakdown field strength of BOPP films, and found that film breakdowns tended to occur at the rising or falling edges of the AC waveform. Chen et al [2] reported the one-pulse breakdown characteristics of BOPP film under nanosecond pulse voltage, and found that the BOPP film breakdowns tended to occur at the rising edge of the nanosecond pulse waveform; at the same time, the authors also tested the breakdown strengths of different thicknesses of the BOPP film under the nanosecond pulse voltage, and pointed out that the breakdown characteristics of the BOPP film did not show the thickness effect. Literature [5] studied the effect of the number of harmonics on the breakdown characteristics of BOPP films when DC superimposed harmonics are applied, and the experimental results shown that the number of harmonics has no effect on the breakdown voltage of the films.…”

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

Correlation between lifetime model of BOPP film and rise rate under nanosecond pulse voltage

Mi,

Chen,

Liu

et al. 2024

J. Phys. D: Appl. Phys.

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This paper aims to study the effect of rise rate (dV/dt) on the cumulative breakdown characteristics of biaxially oriented polypropylene (BOPP) film under nanosecond pulse voltage. The lifetime (NL) of BOPP film under nanosecond pulse voltage with different rise times (15~115ns) was carried out. It is found that the NL increases with the increase of the rise time, and decreases with the increase of the dV/dt. Meanwhile, the quantitative mathematical relationship between NL and dV/dt, and pulse voltage amplitude are established, respectively, and it is concluded that both the rise rate and pulse voltage amplitude on the lifetime of BOPP film by the inverse power model. The results of the study are expected to provide the experimental basis and mechanistic explanation for the evaluation of film capacitor lifetime under extreme conditions.

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Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Correlation between lifetime model of BOPP film and rise rate under nanosecond pulse voltage

Mi,

Chen,

Liu

et al. 2024

J. Phys. D: Appl. Phys.

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“…For the Polypropylene Film, the surface charges that accumulate on polypropylene (PP) film can induce electrical field distortion and surface flashover [19], [20]. Z. Chen et al has found that the breakdown of a thin polypropylene film is mainly determined by the electrical field but not the voltagetime cumulative effect [21]. The flashover voltage of the PP film increases with the SF6 pressure linearly in low-pressure regions, and the growth of flashover voltage gradually slows down and approaches a saturation value in high-pressure regions [22].…”

Section: Introductionmentioning

confidence: 99%

Analysis and Experimental Verification of the Peaking Capacitor’s Flashover Process in an EMP Simulator

et al. 2022

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The flashover process of the peaking capacitor in the electromagnetic pulse (EMP) simulator is studied based on theoretical analyses and experimental verification in this paper. There are deeper and denser ablation spots on the film surface near the inner core of the destroyed peaking capacitor, while the damage of the outer film is relatively slight, which indicates that the flashover current along the inner film is larger. Besides, the circuit simulation analyses show that the earlier the flashover occurs on the film of the peaking capacitor, the smaller the flashover current. The electric field on the non-conical surface of the capacitor is mainly occupied with normal component. Differently, for the conical surface, the electric field on the outer layer is dominated by the normal component and the parallel component is the main part on the inner layer. It is considered that the flashover on the conical surface originates from outer layers and develops gradually to the inner until the flashover penetrates through all layers. Furthermore, the images of flashover show that the flashover firstly occurs on the outermost layers and develops to the inner layers with the increase of the voltage. For such special structure of the peaking capacitor, the parallel component of electric field is more likely to facilitate the flashover under nanosecond pulse. These results may exhibit specific reference implication in the design of insulation for the peaking capacitor used in EMP simulator.

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“…The authors of [5][6][7][8] believe that the formation of electron avalanches in polymers is hindered in the conditions of carrier hopping transport, which is typical for organic materials.…”

Section: Introductionmentioning

confidence: 99%

A mechanism of pulse breakdown evolution in polymeric films

Semenov

Kapralova

Pakhotin

et al. 2022

Physics of the Solid State

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We present the results of an experimental study of the pulse electrical strength of polyethylene terephthalate and polypropylene films when they are subjected to a single electric pulse. It has been found that the breakdown of these films is possible both at the front and at the plateau of the pulse, and the probability of breakdown at the front increases with pulse amplitude. We recorded a jump in the durability of the films at the transition from breakdown at the front to breakdown at the pulse plateau. It is shown that the processes that prepare the film electrical breakdown develop faster at the pulsefront than at the plateau. We discuss a possible physical mechanism to explain this effect. Keywords: polymers, polypropylene, polyethylene terephthalate, pulsed electrical breakdown, electroluminescence.

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Experimental Study of the Breakdown Characteristics of Polypropylene Films Under Nanosecond Voltage Pulses

Cited by 17 publications

References 24 publications

Correlation between lifetime model of BOPP film and rise rate under nanosecond pulse voltage

Correlation between lifetime model of BOPP film and rise rate under nanosecond pulse voltage

Analysis and Experimental Verification of the Peaking Capacitor’s Flashover Process in an EMP Simulator

A mechanism of pulse breakdown evolution in polymeric films

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