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.

Date of Patent:
Oct. 22, 2019

Filed:

Apr. 17, 2017
Applicants:

Nr Electric Co., Ltd, Jiangsu, CN;

Nr Engineering Co., Ltd, Jiangsu, CN;

Inventors:

Dongming Cao, Jiangsu, CN;

Taixun Fang, Jiangsu, CN;

Yeyuan Xie, Jiangsu, CN;

Bing Yang, Jiangsu, CN;

Wei Shi, Jiangsu, CN;

Wei Lv, Jiangsu, CN;

Wenjie Wang, Jiangsu, CN;

Bin Liu, Jiansu, CN;

Tao Wang, Jiangsu, CN;

Assignees:

NR ELECTRIC CO., LTD, Jiangsu, CN;

NR ENGINEERING CO., LTD, Jiangsu, CN;

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H02H 3/08 (2006.01); H02H 3/087 (2006.01); H02H 3/02 (2006.01); H02H 3/06 (2006.01); H01H 83/20 (2006.01);
U.S. Cl.
CPC ...
H02H 3/087 (2013.01); H01H 83/20 (2013.01); H02H 3/02 (2013.01); H02H 3/021 (2013.01); H02H 3/06 (2013.01);
Abstract

A bridge-type circuit comprises a H-bridge switch module and a buffering and reclosing module. The H-bridge switch module comprises four power semiconductor switch devices. Every two of the four power semiconductor switch devices are connected in series in the same direction to form a bridge arm, and the two bridge arms are further connected in parallel. Middle points of the two bridge arms respectively serve as an input terminal and an output terminal. The buffering and reclosing module is connected in parallel with the two bridge arms of the full bridge module. Also provided are a direct current breaking device formed by connecting the above bridge-type circuits in cascade and a control method thereof. The direct current breaking device is provided with the buffering and reclosing module, such that line voltage fluctuation generated during a reclosing operation is small.


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