Study on polymer insulators in air discharge

Okano, Yuta; Kaneko, Eiji; Hayashida, Takehiro

doi:10.1109/icepe-st.2013.6804388

Cited by 3 publications

(2 citation statements)

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“…Figure 1 is the experimental circuit in case of an opened chamber. The current source is the precharged capacitor bank of 148µF with the series reactor of 47mH and charging voltage of 3kV are used [5]. Damping current waveform of 60Hz is generated.…”

Section: Experiments In An Opened Chambermentioning

confidence: 99%

Study on Factor of the Quenching Performance on the Polymer Material Characteristics of an Air Circuit Breaker

Tonmitr

Ganaha

Kaneko

et al. 2016

KEM

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Usage of polymer materials in a quenching chamber is one of the most effective methods of improving performance of an air circuit breaker [1, 2]. During a high current interruption in the air circuit breaker, an arc discharge touches the insulator, and ablation gasses are emitted [3]. It is considered that the quenching performance and an arc characteristic are affected by this ablation gasses. In order to clarify the quenching performance of each polymer material, we are conducting the experiments. With these experiments, the relationships of the ablation gasses among the number of arcing cycles, arcing peak voltage, arcing conductances, and the pressure rise will be discussed with four kinds of polymer materials.

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Section: Experiments In An Opened Chambermentioning

confidence: 99%

Study on Factor of the Quenching Performance on the Polymer Material Characteristics of an Air Circuit Breaker

Tonmitr

Ganaha

Kaneko

et al. 2016

KEM

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“…Actually, magnetic blow technology is very commonly used. Polymer ablation technology is also commonly used, and many studies have examined it [9][10][11][12][13][14][15][16][17][18]. Arc-quenching performance by polymer ablation is strongly related to material properties.…”

Section: Introductionmentioning

confidence: 99%

Numerical study of polymer-ablation arc with polyacrylic acid + H₂O mixture

Shibayama¹,

Tanaka²,

Nakano³

et al. 2021

J. Phys. D: Appl. Phys.

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As described in this paper, we proposed the adoption of polyacrylic acid (PAA) with H2O, which becomes PAA + H2O mixture gel, as an ablation medium for arc quenching in a low-voltage DC circuit breaker. It is well known that H2O is a highly arc-quenching medium, but it has been difficult to use H2O in liquid phase directly as an arc-quenching medium. The arc performance of PAA + H2O mixture gel was studied using numerical and experimental approaches. Numerical thermofluid simulation was conducted to obtain the arc temperature and gas flow distribution at different H2O mixing ratios in PAA + H2O gel. To consider ablation of PAA + H2O gel, a method of alternately arranging PAA and H2O in the ablation wall was also proposed. Calculation results demonstrate that increasing the H2O mixing ratio in PAA + H2O mixture gel makes the arc narrower in the temperature and electrical conductivity distributions. The experimentally obtained results also indicate that arcs confined in PAA + H2O mixture gel with higher H2O mixture become narrower than those in PAA or other materials. Moreover, arcs confined by PAA + H2O mixture gel with higher H2O mixing ratio enhance the arc resistance rapidly. The results suggest that PAA + H2O mixture gel can have higher arc-quenching performance than pure polymers.

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Spallation occurrence from polyamide materials irradiated by thermal plasma with water absorption

Nakano¹,

Tanaka²,

Nakagawa³

et al. 2016

J. Phys. D: Appl. Phys.

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Study on polymer insulators in air discharge

Cited by 3 publications

References 0 publications

Study on Factor of the Quenching Performance on the Polymer Material Characteristics of an Air Circuit Breaker

Study on Factor of the Quenching Performance on the Polymer Material Characteristics of an Air Circuit Breaker

Numerical study of polymer-ablation arc with polyacrylic acid + H₂O mixture

Spallation occurrence from polyamide materials irradiated by thermal plasma with water absorption

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Study on polymer insulators in air discharge

Cited by 3 publications

References 0 publications

Study on Factor of the Quenching Performance on the Polymer Material Characteristics of an Air Circuit Breaker

Study on Factor of the Quenching Performance on the Polymer Material Characteristics of an Air Circuit Breaker

Numerical study of polymer-ablation arc with polyacrylic acid + H2O mixture

Spallation occurrence from polyamide materials irradiated by thermal plasma with water absorption

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Product

Resources

About

Numerical study of polymer-ablation arc with polyacrylic acid + H₂O mixture