Locating Broken-Conductor In HV Transmission Lines
Abstract
This paper presents An ANN based technique for
improving the performance of distance relays against opencircuit
faults in transmission networks. The technique utilizes the
small capacitive current measured in the open-phase plus the
currents in the two healthy phases in calculating the open-circuit
fault distance. The results obtained show that a distance relay
with the proposed scheme will not only be able to detect the open
conductor condition in HVTL but also to locate the place of this
fault regardless the value of the pre-fault current loading. There
is no need for especial communication schemes since the existing
media could work properly for the needs of the proposed
technique.
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