New Ground Fault location Algorithm for Transmission Line Using Synchrophasors

2016 ◽  
Author(s):  
T.P. Hinge ◽  
S.S. Dambhare
Keyword(s):  
Transmission Line ◽  
Fault Location ◽  
Ground Fault ◽  
Location Algorithm

A New Distance Relaying Method with System Load Condition Considered in a Transmission Line

2005 ◽  
Vol 277-279 ◽  
pp. 686-691
Author(s):  
Hyun Kyung Moon ◽  
Seung Ho Hyun ◽  
Sung J. Lee
Keyword(s):  
Transmission Line ◽  
Fault Location ◽  
Load Condition ◽  
Fault Current ◽  
Loop Analysis ◽  
Fault Resistance ◽  
Before And After ◽  
Location Algorithm ◽  
Distance Relaying ◽  
Feed Effect

This paper presents a novel fault location algorithm for a distance relay of a transmission line. Under the assumption that the source voltages and impedances of both ends are not changed before and after a fault, the fault current and the voltage of the terminal end are estimated including the loading condition. Then, the fault location expression, independent of the fault resistance, is derived using these voltages and currents through a loop analysis, in the manner that the in-feed effect of the terminal end is eliminated. The suggested algorithm is applied to a typical transmission line to show its effectiveness.

Fault Location for Transmission Line with Shunt Reactors

2012 ◽  
Vol 605-607 ◽  
pp. 815-818
Author(s):  
Xin Dong Liu ◽  
Rong Guo ◽  
Rui Ming Zeng
Keyword(s):  
Transmission Line ◽  
Frequency Spectrum ◽  
Fault Location ◽  
Transient Signal ◽  
Fundamental Wave ◽  
Location Algorithm ◽  
Shunt Reactors

Taking the influence caused by shunt reactors into account, proposes a new fault location algorithm. Based on distributed modal, the algorithm constructs frequency spectrum equations of the faulty network with line parameters to identify, extracts fundamental wave and harmonics of transient signal to solve equations to obtain fault position and exact parameters.

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