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

IPC分类号： G01R31/12 ,  G01R31/34

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.

公开(公告)号：EP2827159A4

公开(公告)日：2015-11-11

申请号：EP13761865

申请日：2013-03-13

申请人： TOSHIBA MITSUBISHI ELEC INC ,  TOSHIBA KK

发明人： SAKURAI TAKAYUKI ,  OGAWA HIROYUKI ,  YOSHIMITSU TETSUO ,  HIROSE TATSUYA ,  HIROSHIMA SATOSHI

IPC分类号： G01R31/12 ,  G01R31/14

CPC分类号： G01R31/343 ,  G01R19/0084 ,  G01R31/1272 ,  G01R31/14

公开(公告)号：EP0727924A3

公开(公告)日：1998-07-22

申请号：EP96301037

申请日：1996-02-15

申请人： TOSHIBA KK ,  JAPAN TOBACCO INC

发明人： HIROSE TATSUYA

IPC分类号： B23P21/00 ,  H05K13/04 ,  H05K13/08 ,  H05K1/02

CPC分类号： H05K13/08

摘要： A method of sequentially mounting a number of components on mounting points on a printed circuit board includes a processing for dividing a mounting area (A) on the circuit board (16) into a plurality of blocks (B). In the processing, the mounting area (A) is divided into a plurality of sub-areas (C). The adjacent sub-areas (C) are merged together depending upon the number of mounting points (P) contained in each sub-area (C) so that the mounting area (A) is divided into the blocks (B) each of which contains twenty-five mounting points (P). Subsequently, a sequence of the blocks (B) is determined so that the sum of distances between the adjacent blocks (B) is rendered as small as possible. Finally, a mounting sequence of the components (15) on the mounting points (P) in each block (B) is determined. In the determination of the mounting sequence in each block (B), the length of a route obtained by connecting the mounting points (P) in series to one another serves as a performance function with respect to a permutation of the mounting points (P). The permutation rendering the performance function as small as possible is obtained by a probabilistic optimization method. The distance between the mounting points (P) is parameterized.