GROUND FAULT LOCATING METHOD FOR POWER DISTRIBUTION NETWORK, SYSTEM, AND STORAGE MEDIUM

WIPO Patent Application WO/2018/120772

A1

Provided are a ground fault locating method for a power distribution network, a system, and a computer storage medium storing therein an instruction causing a computer to execute a locating method. The method comprises: 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 (S1); combining the record files corresponding to each of the three phase lines to obtain fault record files (S2); 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 (S3). The ground fault locating method for a power distribution network can significantly improve accuracy of single-phase ground fault detection.

WU XINLING (CN)
LIU SHEN (CN)
ZHAO TIEJUN (CN)
YU YUE (CN)
ZHOU WEIYUE (CN)
TIAN CHUANBO (CN)
QIAO KE (CN)
ZHU XIAOLING (CN)
LIU YAXIN (CN)
LIANG DONG (CN)
YAN AIMEI (CN)
ZHANG SHUHAN (CN)
ZHANG LILI (CN)
YUAN YI (CN)
WU XUEMEI (CN)
ZHU JIAN (CN)
SUN LINGCHEN (CN)
WANG SINING (CN)
LENG MAN (CN)

PCT/CN2017/093180

July 05, 2018

July 17, 2017

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BEIJING GUODIAN TONG NETWORK TECH CO LTD (CN)
STATE GRID JIBEI ELECTRIC POWER CO LTD (CN)
STATE GRID QINHUANGDAO POWER SUPPLY COMPANY (CN)

G01R31/08

CN106771870A	2017-05-31
CN105759179A	2016-07-13
CN202794433U	2013-03-13
CN205333777U	2016-06-22
CN102879711A	2013-01-16
US5428549A	1995-06-27
US5455776A	1995-10-03

CHINA PAT INTELLECTUAL PROPERTY OFFICE (CN)

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