The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Oct. 15, 2019
Filed:
Apr. 21, 2015
Toshiba Mitsubishi-electric Industrial Systems Corporation, Chuo-ku, JP;
Kabushiki Kaisha Toshiba, Minato-ku, JP;
Toshiba Industrial Products and Systems Corporation, Kawasaki-shi, JP;
Tomomi Ikegami, Tokyo, JP;
Tetsuo Yoshimitsu, Tokyo, JP;
Takayuki Sakurai, Tokyo, JP;
Tatsuya Hirose, Inagi, JP;
Satoshi Hiroshima, Kawasaki, JP;
Yuji Yamamoto, Mie, JP;
TOSHIBA MITSUBISHI-ELECTRIC INDUSTRIAL SYSTEMS CORPORATION, Chuo-ku, JP;
KABUSHIKI KAISHA TOSHIBA, Minato-ku, JP;
TOSHIBA INDUSTRIAL PRODUCTS AND SYSTEMS CORPORATION, Kawasaki-shi, JP;
Abstract
A partial discharge measurement device includes: an impulse voltage application unit; a measurement control unit; and first and second partial discharge detection unit. The measurement control unit includes: 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.