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:
Aug. 13, 2019
Filed:
Apr. 21, 2017
Xi'an Jiaotong University, Xi'an, Shaanxi, CN;
Yifei Wu, Xi'an, CN;
Mingzhe Rong, Xi'an, CN;
Fei Yang, Xi'an, CN;
Yi Wu, Xi'an, CN;
Chunping Niu, Xi'an, CN;
XI'AN JIAOTONG UNIVERSITY, Shaanxi, CN;
Abstract
The present invention provides a DC circuit breaker combining magnetic induction transfer and resistance current limiting, the circuit breaker comprising: a main current circuit, a current-limiting branch, a breaking branch, and an energy dissipation branch; the current-limiting branch and the breaking circuit each comprises a magnetic induction transfer module; an inductor in the magnetic induction transfer module of the current-limiting branch and a branch inductor in the current-limiting branch are coupled to form a mutual inductor; an inductor in the magnetic induction transfer module of the breaking branch and a second inductor in the transfer current loop are coupled to form a mutual inductor. The present invention can limit the current rising speed and amplitude and completely turned off the short-circuit current, thereby reducing the size and manufacturing cost of the circuit breaker. The main loop capacitance needs not be pre-charged; isolation between a secondary charging circuit and the main loop is realized; the discharging capacitance of the magnetic induction transfer modules adopt a bridge structure, which may two-way limit and break the fault current.