Application of Electrical Insulating System of Superconducting Power Apparatus by Polymeric Composite Materials
Application of Electrical Insulating System of Superconducting Power Apparatus by Polymeric Composite Materials
批准号:
10450104
负责人:
KOSAKI Masamitsu
金额:
$9.02万
依托单位国家:
日本
项目类别:
Grant-in-Aid for Scientific Research (B)
财政年份:
1998
资助国家:
日本
项目状态:
已结题
起止时间:
1998 至 1999
中文摘要
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)在导体圆柱体表面相当粗糙的情况下,EPR绝缘在冷却至液氮温度时没有发生机械失效。在低温下长期运行时,填料EPR具有较高的绝缘可靠性。(2)低温下直流短路树起始电压远高于常温。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)测定了低温气体有无间隔的直流击穿电压。击穿电压服从Paschen定律,只随密度和厚度的乘积而变化。在低密度厚度产品范围内,在间隙击穿发生之前,表面击穿几乎不可能发生。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。
英文摘要
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) The EPR insulation did not suffer from the mechanical failure at the cooling down to liquid nitrogen temperature around the fairly rough surface of conductor cylinder. High insulation reliability of EPR with filler is expected during long term operation at cryogenic temperature.(2) DC short-circuit tree initiation voltage at cryogenic temperatures is much higher than that at room temperatures. 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 DC breakdown voltage of cryogenic gas with and without spacer has been measured. The breakdown voltage obeys Paschen's law and changes only with the product of density and thickness. In low density-thickness product range, surface breakdown can hardly occur before the gap breakdown develops.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.
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KOSAKI Masamitsu: "Solid insulation and its deterioration"Cryogenic. 38, No.11. 1095-1104 (1998)
小崎正光:“固体绝缘及其恶化”低温。
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TOKORO Tetsuro: "Study of Surface Degradation Diagnosis Method of Silicone Rubbers"Proceedings of 31th Symposium on Electrical and Electronic Insulation Materials and Applications in Systems. F-4. 145-148 (1999)
TOKORO Tetsuro:《硅橡胶表面劣化诊断方法的研究》第31届电气电子绝缘材料及系统应用研讨会论文集。
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M.Nagao: "Electrical Insulation Characteristic of paper-Ice Composite Insulating System in Liquid Nitrogen"Proceedings of 1999 IEEE 13^<th> ICDL (99CH36213). Vol.1. 462-465 (1999)
M.Nagao:“液氮中纸-冰复合绝缘系统的电绝缘特性”1999 IEEE 13^<th> ICDL (99CH36213) 论文集。
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T. Tokoro: "Image Analysis of Hydrohobicity of Silicone Rubber Insulator"1999Annual Report, CEDIP(99CH36319). Vol. 2. 763-766 (1999)
T. Tokoro:“硅橡胶绝缘体疏水性的图像分析”1999年年度报告,CEDIP(99CH36319)。
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MINODA Atsushi: "Breakdown Characteristics of Gaseous and Liquid Nitrogen in Parallel Electrodes System with Small Gap Spacer"Proceedings of 1998 ISEIM (98TH8286). 1. 317-320 (1998)
MINODA Atsushi:“带小间隙垫片的平行电极系统中气态和液氮的击穿特性”1998 ISEIM 论文集 (98TH8286)。
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共 34 条
Development of High Performance Electrical Insulation System of Superconducting Power Apparatus by Polymeric Composite Materials
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批准号:14350152
-
项目类别:Grant-in-Aid for Scientific Research (B)
-
资助金额:$9.22万
-
财政年份:2002
-
负责人:KOSAKI Masamitsu
-
依托单位:
Development of High Performance Super-conducting Model Power Cable with Extruded Polymer Insulation Considering DC Power Transportation
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批准号:12555081
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项目类别:Grant-in-Aid for Scientific Research (B)
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资助金额:$6.27万
-
财政年份:2000
-
负责人:KOSAKI Masamitsu
-
依托单位:
Development of High Performance Extruded Polymer Insulated DC Superconducting Model Cable using High Temperature Superconductor
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批准号:10555091
-
项目类别:Grant-in-Aid for Scientific Research (B)
-
资助金额:$8.19万
-
财政年份:1998
-
负责人:KOSAKI Masamitsu
-
依托单位:
Application of Polymeric Super Electrical Insulating Materials to Superconducting Power Apparatus
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批准号:08455133
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项目类别:Grant-in-Aid for Scientific Research (B)
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资助金额:$4.54万
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财政年份:1996
-
负责人:KOSAKI Masamitsu
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依托单位:
Development of Extruded Polymer Insulated DC Superconducting Cable using High Temperature Superconductor
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批准号:07555090
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项目类别:Grant-in-Aid for Scientific Research (A)
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资助金额:$2.5万
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财政年份:1995
-
负责人:KOSAKI Masamitsu
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依托单位:
Fundamental Study on Composite Electrical Insulation Design for Superconducting Power Apparatuses Using Low and High Temperature Superconductors
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批准号:01460130
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项目类别:Grant-in-Aid for General Scientific Research (B)
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资助金额:$3.52万
-
财政年份:1989
-
负责人:KOSAKI Masamitsu
-
依托单位:
海外基金