Behavior of Swarming Pulsive Microdischarges in an Enclosed Void and Resulting Insulation Deterioration

封闭空隙中的集群脉冲微放电行为及导致的绝缘恶化

• 批准号: 60550211
• 负责人: IZEKI Noboru
• 金额: $ 1.34万
• 依托单位: Tokyo Denki University
• 依托单位国家: 日本
• 项目类别: Grant-in-Aid for General Scientific Research (C)
• 财政年份: 1985
• 资助国家: 日本
• 起止时间: 1985 至 1986
• 项目状态: 已结题
• 来源: https://kaken.nii.ac.jp/grant/KAKENHI-PROJECT-60550211/
• 关键词: partial discharge; swarming pulsive microdischarge; break down; deterioration; void; atomic oxygen; 酸素; 酸化

This project consists of two subthemes : the one is the research of physics of SPMD ( swarming pulsive microdischarges ) and the other is the research on the mechanisms of PD ( partial discharge ) deterioration of organic insulating materials from a viewpoint of plasma chemistry. From this project, much fruitful results have been obtained. The details of the work are shown in the attached research report, which consists of the following six chapters : (1) Object and summary, (2) Development of measuring techniques of PDs, (3) Behavior of the internal PDs, (4) A proposal on mechanisms of PD deterioration of organic materials, (5) Mechanisms of internal PD deterioration of organic insulating materials, (6) Frequency acceleration of internal PD deterioration,Among them the most important parts are (3) and (5) The outline of (3) has already reported in the abstract of this project of last year, hence, a brief summary of (5) is shown in the following :1)In the internal PD deterioration, initially, O2 is consumed down to nearly zero, but at the same time, CO2, H2O, and H2 and so on are generated as the decomposition products of the material. After that, CO2 and H2O are dissociated into CO, HO and O, and so on due to the subsequent PDs. Therefore O and O2 are supplied to the void space at all time by recycling of oxygen between the surface of the material and the void space. Results of the gas analysis support this explanation.2)This means the PD deterioration does not stop even in an enclosed void.3) At the same time, PD behavior changes complicatedly with time due to complex change of the gas composition and its content in the void space. It turned out that the shift of PD to SPMD was caused mainly due to the decrease of oxygen content in the void space.

该项目由两个子主题组成：一个是SPMD物理学的研究（蜂群脉动微型汇），另一个是从血浆化学的角度来研究PD（部分放电）有机绝缘材料机制的研究。从这个项目中，已经获得了许多富有成果的结果。工作的细节显示在随附的研究报告中，该报告包括以下六章：（1）对象和摘要，（2）开发PDS的测量技术，（（3）内部PDS的行为，（4）关于PD的机制的建议，关于有机材料的PD恶化机制，（5）内部pd vestion perterious poct perterious poct perterious poct perterification pot perterification（6）的供材料（6），（6）（6）供材料的机构（6），（6）（6）供材料的机制（6），（6）（6）的供材料的机制（6）（6） the most important parts are (3) and (5) The outline of (3) has already reported in the abstract of this project of last year, hence, a brief summary of (5) is shown in the following :1)In the internal PD deterioration, initially, O2 is consumed down to nearly zero, but at the same time, CO2, H2O, and H2 and so on are generated as the decomposition products of the material.之后，由于随后的PDS，CO2和H2O分解为CO，HO和O等。因此，通过在材料表面和空隙空间之间回收氧气，一直将O和O2始终提供到空间空间。气体分析的结果支持此解释。2）这意味着即使在封闭的空隙中，PD恶化也不会停止。3）同时，由于气体组成的复杂变化及其在空间中的含量，PD行为随着时间而变化。事实证明，PD向SPMD的转移主要是由于空间空间中氧含量的减少而引起的。

项目成果

N.Izeki;F.Tatsuta: VDE,ETG Fachberichte. 16. 23-27 (1985)

N.Izeki；F.Tatsuta：VDE、ETG Fachberichte。

N.Izeki: VDE,ETG Fachberichte. 16. 14-18 (1985)

N.Izeki：VDE、ETG Fachberichte。

N.Izeki, F.Tatsuta: "Behavior of Internal Partial Discharges and its change with ageing time in the CIGRE Method I electorode" VDE, ETG Fachberichte. 16. 23-27 (1985)

N.Izeki、F.Tatsuta：“CIGRE 方法 I 电极中内部局部放电的行为及其随老化时间的变化”VDE、ETG Fachberichte。

N.Izeki;F.Tatsuta;H.Matsuzaki;Y.Liu: Record of ICPADM(IEEE). 277-280 (1985)

N.Izeki;F.Tatsuta;H.Matsuzaki;Y.Liu：ICPADM(IEEE) 记录。

井関,福永,竜田: 電気学会論文誌A. 107A. (1987)

Iseki、Fukunaga、Tatsuta：日本电气工程师协会汇刊 A. 107A (1987)。