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:
Jul. 10, 2018
Filed:
Jun. 19, 2015
Kabushiki Kaisha Yaskawa Denki, Kitakyushu-shi, JP;
Kenji Mitsuda, Kitakyushu, JP;
Hiroshi Takagi, Kitakyushu, JP;
KABUSHIKI KAISHA YASKAWA DENKI, Kitakyushu-shi, JP;
Abstract
A power conversion apparatus includes a power conversion device connected to a 3-phase AC power source, a first fuse positioned on a first phase of the source between the conversion device and the source, a second fuse positioned on a second phase of the source between the conversion device and the source, a first voltage detection device which detects first voltage between a third phase and the first phase of the source on the conversion device side with respect to the first fuse, a second voltage detection device which detects second voltage between the third and second phases of the source on the conversion device side with respect to the second fuse, and a status detection device connected to the first and second voltage devices such that the status device detects status of the first and second fuses based on comparison between detection result of the first and second voltage.