Development of High Performance Electrical Insulation System of Superconducting Power Apparatus by Polymeric Composite Materials

高分子复合材料超导电力设备高性能电绝缘系统的研制

• 批准号: 14350152
• 负责人: KOSAKI Masamitsu
• 金额: $ 9.22万
• 依托单位: Gifu National college of Technology
• 依托单位国家: 日本
• 项目类别: Grant-in-Aid for Scientific Research (B)
• 财政年份: 2002
• 资助国家: 日本
• 起止时间: 2002 至 2003
• 项目状态: 已结题
• 来源: https://kaken.nii.ac.jp/en/grant/KAKENHI-PROJECT-14350152/
• 关键词: ethylene-propylene rubber; cryogenic temperature; polymeric materials; filler; space charge; breakdown; treeing resistance; エチレンプロピレンゴム; 複合固体材料; EPR

The investigators have been studying the application of polymeric materials (ethylene-propylene rubber (EPR)) to electrical insulation system of superconducting power apparatus. At cryogenic temperature, there are many practical insulation studies on fluids such as liquid nitrogen or liquid helium but scarce studies on the solid insulation enabling a high voltage design.The results are summarized as follows:(1) Plastics with fillers, in the case of EPR, give excellent electrical performance in addition to the controlled thermal contraction at cryogenic temperature.(2) The electrical breakdown and space charge of EPR samples with fillers for the DC electrical insulation system showed that the breakdown strength at cryogenic temperature is much higher than that at room temperature. This may be attributed to loss carrier injection from electrode and gives a strong incentive to design the electrical insulation of superconducting power apparatus.(3) The EPR resistance to treeing both at cryogenic and room temperatures and the effect of fillers on resistance to treeing showed that EPR has sufficient resistance to AC treeing at cryogenic temperature and the fillers improve resistance to AC treeing slightly.The results obtained in this study open an avenue to the application of polymeric materials (EPR) to electrical insulation system of superconducting power apparatus. EPR seem to be promising materials for solid insulation in the cryogenic region.

研究人员一直在研究高分子材料（乙丙橡胶）在超导电力设备电绝缘系统中的应用。在低温下，对液氮或液氦等流体的实用绝缘研究很多，但对高压设计的固体绝缘研究很少。结果表明：(1)在EPR的情况下，添加填料的塑料具有优异的电性能，并且在低温下热收缩可控。(2)直流电气绝缘系统用填料EPR试样的击穿和空间电荷表明，低温击穿强度远高于室温。这可能是由于电极的损耗载流子注入，这对超导电力设备的电绝缘设计具有强烈的激励作用。(3) EPR在低温和室温下的抗树性以及填料对其抗树性的影响表明，EPR在低温下具有足够的抗交流电采伐性，填料对其抗交流电采伐性略有提高。本研究结果为高分子材料在超导电力设备电绝缘系统中的应用开辟了一条新途径。EPR是一种极有前途的低温地区固体绝缘材料。

项目成果

箕田充志: "固体絶縁方式超電導ケーブル用EPRのトリーイング特性"低温工学. 38・10. 554-559 (2003)

Minota Mitsushi：“固体绝缘超导电缆的 EPR 树形特性”，低温工程 554-559（2003 年）。

NISHIOKA Koji: "Effect of Moisture on Treeing Phenomenon in Epoxy Resin with Fillers under A.C. Voltage"Technical Meeting of DEI. DEI-02-61. 25-28 (2002)

NISHIOKA Koji：“交流电压下水分对含填料环氧树脂中树形现象的影响”DEI 技术会议。

TOKORO Tetsuro: "Dielectric Measurement of Water Droplet Behavior on Polymer Insulator Surface"Proceedings of 34^<th> Symposium on Electrical and Electronic Insulating Materials and Application in Systems. B-4. 53-56 (2002)

TOKORO Tetsuro：“聚合物绝缘体表面水滴行为的介电测量”第34届电气电子绝缘材料及其系统应用研讨会论文集。

村本裕二: "空気ギャップの放電を介したポリエチレンフィルムの絶縁破壊"平成14年電気学会A部門大会. VI-41. 275-279 (2002)

Yuji Muramoto：“通过气隙放电实现聚乙烯薄膜的介电击穿”2002 年 IEEJ A 部门会议 VI-41 (2002)。

村本裕二: "気体-固体複合絶縁系におけるLDPEフィルムの交流絶縁破壊特性"第34回電気電子絶縁材料システムシンポジウム. J-5. 213-216 (2002)

Yuji Muramoto：“气固复合绝缘系统中 LDPE 薄膜的交流击穿特性”第 34 届电气和电子绝缘材料系统研讨会 J-5（2002 年）。