Improving Traveling Wave-Based Transmission Line Fault Location by Leveraging Classical Functions Available in Off-the-Shelf Devices
Felipe V. Lopes, Raphael L. A. Reis, Kleber M. Silva
Abstract
This letter presents a practical methodology to improve traveling wave (TW)-based fault location (TWFL) on transmission lines by leveraging classical single- and double-ended TWFL functions available in off-the-shelf relays and digital fault recorders. It eliminates negative effects of uncertainties in line propagation velocity and travel time, being free of time-consuming or complicated procedures. Real TW records are studied to demonstrate that the proposed solution can improve the accuracy and reliability of TWFL estimations when uncertainties about line propagation velocity or travel time exist.
Topics & Concepts
Transmission lineLine (geometry)Electric power transmissionFault (geology)Traveling waveReliability (semiconductor)Computer scienceOff the shelfElectronic engineeringTransmission (telecommunications)Travel timeReal-time computingElectrical engineeringEngineeringTelecommunicationsMathematicsPhysicsPower (physics)GeologyTransport engineeringMathematical analysisQuantum mechanicsGeometrySeismologySoftware engineeringPower Systems Fault DetectionPower Line Communications and NoiseElectrical Fault Detection and Protection