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:
Mar. 30, 2021
Filed:
Jul. 17, 2017
Beijing Guodian Tong Network Technology Co., Ltd, Beijing, CN;
State Grid Jibei Electric Power Co., Ltd, Beijing, CN;
State Grid Qinhuangdao Power Supply Company, Hebei, CN;
Xinling Wu, Beijing, CN;
Shen Liu, Beijing, CN;
Tiejun Zhao, Qinhuangdao, CN;
Yue Yu, Qinhuangdao, CN;
Weiyue Zhou, Beijing, CN;
Chuanbo Tian, Beijing, CN;
Ke Qiao, Beijing, CN;
Xiaoling Zhu, Beijing, CN;
Yaxin Liu, Beijing, CN;
Dong Liang, Beijing, CN;
Aimei Yan, Beijing, CN;
Shuhan Zhang, Beijing, CN;
Lili Zhang, Qinhuangdao, CN;
Yi Yuan, Qinhuangdao, CN;
Xuemei Wu, Qinhuangdao, CN;
Jian Zhu, Qinhuangdao, CN;
Lingchen Sun, Qinhuangdao, CN;
Sining Wang, Beijing, CN;
Man Leng, Beijing, CN;
BEIJING GUODIAN TONG NETWORK TECHNOLOGY CO., LTD, Beijing, CN;
STATE GRID JIBEI ELECTRIC POWER CO., LTD, Beijing, CN;
STATE GRID QINHUANGDAO POWER SUPPLY COMPANY, Hebei, CN;
Abstract
A ground fault locating method for a power distribution network includes: monitoring each phase line of three phase distribution lines, and in the event of occurrence of waves with fault features, performing wave recording to obtain phase line record files; combining the record files corresponding to each of the three phase lines to obtain fault record files; and synthesizing the fault record files to form a transient record file, determining a fault location according to a wave having a maximum change in wave amplitude between two points in the transient record file, and displaying the fault location in a wiring diagram. The ground fault locating method for a power distribution network can significantly improve accuracy of single-phase ground fault detection.