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. 25, 2020
Filed:
Nov. 28, 2016
Huazhong University of Science and Technology, Wuhan, CN;
Guangzhou Power Supply Co. Ltd., Guangzhou, CN;
Zhao Yuan, Wuhan, CN;
Junxiang Liu, Guangzhou, CN;
Fating Yuan, Wuhan, CN;
Lixue Chen, Wuhan, CN;
Junjia He, Wuhan, CN;
Yuan Pan, Wuhan, CN;
Kaijian Wu, Wuhan, CN;
Yong Wang, Guangzhou, CN;
Wenxiong Mo, Guangzhou, CN;
Haibo Su, Guangzhou, CN;
HUAZHONG UNIVERSITY OF SCIENCE AND TECHNOLOGY, Wuhan, CN;
GUANGZHOU POWER SUPPLY CO., LTD., Guangzhou, CN;
Abstract
A short circuit fault current limiter includes a circuit breaker, a transfer current limiting unit and a current detection unit. The current detection unit is connected to the circuit breaker in series, and the circuit breaker and the transfer current limiting unit are connected in parallel into the power system line. An output terminal of the current detection unit is connected to a control terminal of the transfer current limiting unit. The current detection unit is configured to detect a fault current flowing through a branch of the circuit breaker under a short circuit fault operating condition and trigger the corresponding trigger switch of the transfer current limiting unit to be switched on, so that the circuit breaker is disconnected and the secondary side winding of the coupling reactor is connected to the system line in series, which is capable of rapidly limiting the amplitude of the fault current and reducing impact of the fault current on the system.