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:
Nov. 19, 2024
Filed:
May. 18, 2020
Nippon Telegraph and Telephone Corporation, Tokyo, JP;
Naoki Hanaoka, Musashino, JP;
Hidetoshi Takada, Musashino, JP;
Toshimitsu Tanaka, Musashino, JP;
Masaki Kozai, Musashino, JP;
Nippon Telegraph and Telephone Corporation, Tokyo, JP;
Abstract
A feeding system that feeds power to a load includes only a single device configured to have neutral point high-resistance between a feeding line and the earth. The device functions as a ground fault overvoltage detection type of ground fault detector. The feeding system further comprises a control device. When the ground fault overvoltage detection type of ground fault detector detects a ground fault, the ground fault overvoltage detection type of ground fault detector transmits, to the control device via a signal line, a signal indicating that the ground fault has occurred. The control device instructs a breaker corresponding to the specific distributed unit in which it is determined that the ground fault has occurred to perform breaking.