发明申请
- 专利标题： METHOD AND APPARATUS FOR EVALUATING ELECTRICAL WIRE
- 专利标题（中）： 用于评估电线的方法和装置
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申请号： US14638976申请日： 2015-03-04
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公开(公告)号： US20150260776A1公开(公告)日： 2015-09-17
- 发明人: Peng Xie , Hideyuki Kikuchi , Yosuke Sumi
- 申请人： Hitachi Metals, Ltd.
- 优先权： JP2014-49760 20140313
- 主分类号： G01R31/02
- IPC分类号： G01R31/02 ; G01R31/12
摘要：
A method for evaluating an electrical wire having a conductor and an insulating layer includes: a partial-discharge amount-of-charge determining step of applying, by a voltage application unit, a voltage to the electrical wire to cause partial discharge in the electrical wire and determining an amount of charge owing to the partial discharge; and an evaluation step of evaluating the insulating layer by using a change over time in the amount of charge owing to the partial discharge.
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