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:
Jun. 09, 2020
Filed:
Mar. 02, 2017
Sumitomo Electric Industries, Ltd., Osaka-shi, Osaka, JP;
Yoitsu Sekiguchi, Osaka, JP;
Tatsuo Takada, Tokyo, JP;
Yasuhiro Tanaka, Tokyo, JP;
Masumi Fukuma, Matsue, JP;
SUMITOMO ELECTRIC INDUSTRIES, LTD., Osaka-shi, Osaka, JP;
Abstract
An evaluation method for insulation performance includes: a step α of applying a DC voltage to a first insulator and measuring an integration value of a current flowing through the first insulator from a start of application of the DC voltage after a prescribed time period; a step β of applying a DC voltage to the second insulator on an applying condition that is identical to that in the step α and measuring an integration value of a current flowing through the second insulator from a start of application of the DC voltage after a prescribed time period; and a step γ of comparing (i) a first graph obtained in the step α and (ii) a second graph obtained in the step β, to evaluate a difference between insulation performances of the insulators.