发明授权
- 专利标题: Dielectric strength test method of superconducting cable
- 专利标题(中): 超导电缆绝缘强度试验方法
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申请号: US11664608申请日: 2005-10-12
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公开(公告)号: US07701225B2公开(公告)日: 2010-04-20
- 发明人: Masayuki Hirose , Ken Yatsuka , Hiroshi Takigawa
- 申请人: Masayuki Hirose , Ken Yatsuka , Hiroshi Takigawa
- 申请人地址: JP Osaka-shi
- 专利权人: Sumitomo Electric Industries, Ltd.
- 当前专利权人: Sumitomo Electric Industries, Ltd.
- 当前专利权人地址: JP Osaka-shi
- 代理机构: Foley & Lardner LLP
- 优先权: JP2005-003192 20050107
- 国际申请: PCT/JP2005/018749 WO 20051012
- 国际公布: WO2006/073016 WO 20060713
- 主分类号: G01R31/02
- IPC分类号: G01R31/02 ; G01R27/08 ; C04B35/45
摘要:
A dielectric strength test method of a superconducting cable that can evaluate the insulation characteristic of a superconducting cable in a state in which a refrigerant is filled without filling a refrigerant is provided.A tested superconducting cable is filled with gas in place of a refrigerant and a regular dielectric strength test is conducted at room temperature. Preferably, a preliminary dielectric strength test is conducted prior to the regular dielectric strength test. In the preliminary dielectric strength test, a first reference superconducting cable filled with a refrigerant at a predetermined pressure and a second reference superconducting cable filled with gas in place of a refrigerant at a predetermined pressure are provided. The preliminary dielectric strength test is conducted for the first reference superconducting cable at refrigerant temperature and the second reference superconducting cable at room temperature to find the correlation between the dielectric strength characteristics of the cables. At the time, the test voltage is determined based on the dielectric strength characteristic of the second reference superconducting cable. The regular dielectric strength test is conducted at the test voltage.
公开/授权文献
- US20080039334A1 Dielectric Strength Test Method of Superconducting Cable 公开/授权日:2008-02-14