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公开(公告)号：EP3136116A4
公开(公告)日：2017-12-06
申请号：EP15782828
申请日：2015-04-21
申请人： TOSHIBA MITSUBISHI-ELECTRIC IND SYSTEMS CORP , TOSHIBA KK , TOSHIBA IND PRODUCTS AND SYSTEMS CORP
发明人： IKEGAMI TOMOMI , YOSHIMITSU TETSUO , SAKURAI TAKAYUKI , HIROSE TATSUYA , HIROSHIMA SATOSHI , YAMAMOTO YUJI
CPC分类号： G01R31/1272 , G01R31/34 , G01R31/346
摘要： A partial discharge measurement device (10) has: an impulse voltage application unit (13) ; a measurement control unit (20); and first and second partial discharge detection unit (10a, 10b). The measurement control unit (20) has: a first and a second detector level partial discharge counting unit; and a partial discharge resistance evaluation unit. Each of the first and the second detector level partial discharge counting units outputs a first or second detection signal when the first or second detection signal exceeds a predetermined specified value. The partial discharge resistance evaluation unit counts the number of occurrences of partial discharge based on an output from the first and second detector level partial discharge counting unit, and regards the impulse voltage value at which the count value has reached a predetermined value as a partial discharge inception voltage under the repeated impulse voltage application.
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2.发明公开WATER-TREE RESISTANCE EVALUATION METHOD, INSULATION DESIGN METHOD, AND ROTARY ELECTRIC MACHINE 审中-公开方法为隔振设计及旋转电动机评估水树的阻力，方法
公开(公告)号：EP3048449A4
公开(公告)日：2017-04-26
申请号：EP13893965
申请日：2013-09-20
CPC分类号： G01R31/1272 , G01N17/00 , G01R31/003 , G01R31/1227 , G01R31/34 , H02K3/44
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