Single phase-to-ground fault line identification and section location method for non-effectively grounded distribution systems based on signal injection

Zhencun Pan; Chengshan Wang; Wei Cong; Fan Zhang

doi:10.1007/s12209-008-0017-7

Transactions of Tianjin University ›› 2008, Vol. 14 ›› Issue (2) : 92 -96. DOI: 10.1007/s12209-008-0017-7

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Single phase-to-ground fault line identification and section location method for non-effectively grounded distribution systems based on signal injection

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Abstract

A diagnostic signal current trace detecting based single phase-to-ground fault line identification and section location method for non-effectively grounded distribution systems is presented in this paper. A special diagnostic signal current is injected into the fault distribution system, and then it is detected at the outlet terminals to identify the fault line and at the sectionalizing or branching point along the fault line to locate the fault section. The method has been put into application in actual distribution network and field experience shows that it can identify the fault line and locate the fault section correctly and effectively.

Keywords

single phase-to-ground fault (SPGF) / signal injection method / fault line identification / fault location

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Zhencun Pan, Chengshan Wang, Wei Cong, Fan Zhang. Single phase-to-ground fault line identification and section location method for non-effectively grounded distribution systems based on signal injection. Transactions of Tianjin University, 2008, 14(2): 92-96 DOI:10.1007/s12209-008-0017-7

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