Method for preventing differential protection maloperation of optical fiber caused by saturation of single CT of 3/2 connection

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United States of America Patent

PATENT NO 10622804
APP PUB NO 20170163024A1
SERIAL NO

15352349

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Abstract

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The present disclosure relates to a method for preventing a maloperation of differential protection of an optical fiber caused by saturation of a single Current Transformer (CT) of 3/2 connection. By applying a combination of the differential judgment and the sub-CT current judgment, reliable identification of internal and external faults is ensured, and the problem of misjudging of the internal fault as the external fault can be prevented as well.

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Patent Owner(s)

Patent OwnerAddress
STATE GRID CORPORATION OF CHINANO 86 WEST CHANG'AN STREET XICHENG DISTRICT BEIJING 100031
XJ GROUP CORPORATIONNO 1298 XUJI AVENUE XUCHANG HENAN 461000
XJ ELECTRIC CO LTDNO 1298 XUCHANG CITY HENAN PROVINCE 461000 XJ AVENUE XUCHANG CITY HENAN PROVINCE 461000
XUCHANG XJ SOFTWARE TECHNOLOGY CO LTDNO 1706 XUJI AVENUE XUCHANG HENAN 461000

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Dong, Xintao Xuchang, CN 2 0
Hao, Huizhen Xuchang, CN 2 0
Jiang, Ziqiang Xuchang, CN 9 1
Li, Baowei Xuchang, CN 5 17
Li, Wenzheng Xuchang, CN 16 10
Li, Xu Xuchang, CN 520 6257
Ma, Quanxia Xuchang, CN 1 0
Meng, Liping Xuchang, CN 7 0
Ni, Chuankun Xuchang, CN 5 17
Qiao, Yantao Xuchang, CN 2 24
Shi, Xin Xuchang, CN 100 466
Tang, Yanmei Xuchang, CN 3 0
Tang, Yu Xuchang, CN 219 955
Xi, Yingying Xuchang, CN 3 17
Zhao, Jiansong Xuchang, CN 2 15

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