|Table of Contents|

Experimental research on single phase grounding fault location in distribution network with arc suppression coil

《南京理工大学学报》(自然科学版)[ISSN:1005-9830/CN:32-1397/N]

Issue:
2014年05期
Page:
644-650
Research Field:
Publishing date:

Info

Title:
Experimental research on single phase grounding fault location in distribution network with arc suppression coil
Author(s):
Zeng Jun1Zhou Jie1Sun Jiandong1Xia Yandong1Zhou Jun1Bu Xiongzhu2
1.NARI Technology Development Limited Company,Nanjing 210061,China; 2.School of Mechanical Engineering,NUST,Nanjing 210094,China
Keywords:
distribution network the arc suppression coil single phase grounding fault location zero-sequence current fault component harmonic line selection single phase grounding testing platform
PACS:
TM77
DOI:
-
Abstract:
In order to solve the problem that the single phase grounding fault locating is difficult in the distribution network with the arc suppression coil,the characteristics of zero-sequence current are researched when the single phase grounding fault occurrs in distribution network for the arc suppression coil here.A single phase grounding fault location method in the distribution network based on the zero-sequence current fault component and the 7th harmonic line selection is proposed.The feeder terminal units(FTU)are installed at exits and branches of every line,and each FTU measures the zero-sequence current fault component independently.At the same time,the single phase grounding location result of FTU and the data of the 7th harmonic zero-sequence current are sent to distribution network monitoring system.After comparing the FTU result of the single phase grounding location and the data of the 7th harmonic zero-sequence current comprehensively,the single phase grounding accurate location is obtained,and the specific fault location flow chart and criterions are also given.Experimental results show that this method can identify the fault section correctly and reliably.

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Last Update: 2014-10-31