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:
Feb. 23, 2021
Filed:
Jun. 14, 2018
Toshiba Mitsubishi-electric Industrial Systems Corporation, Chuo-ku, JP;
Abstract
This electrical tree test method is a method for testing for electrical trees in an insulating member including a mica insulation applied to an electrical conductor. The method comprises: an assembly setting step of setting an electrode setting assembly to the outside of the mica insulation; an impregnation step of impregnating the mica insulation with synthetic resin after the assembly setting step; a removal step of removing components of the electrode setting assembly, except an electrode structure, after the impregnation step; a power supply connecting step of connecting, after the removal step, the electrical conductor and the electrode structure to a power supply in order to apply a voltage between the electrical conductor and the electrode structure; and a voltage applying step of applying a voltage between the electrical conductor and the electrode structure, after the power supply connecting step.