Phasor-Based Single-Phase Auto-Reclosing Scheme for Non-Compensated Transmission Lines
IEEE Transactions on Power Delivery(2022)
Abstract
An approach to detect the secondary arc extinction is proposed here for single-phase auto-reclosing of non-compensated transmission lines. It consists on the analysis of the line side voltage phasors in the modal domain to safely and rapidly identify the presence and the extinction of secondary arc in the line. The procedure can also determine the arc re-ignition if it occurs during the line dead time. Since the proposed approach requires only the voltage phasors at one line terminal, it can be easily implemented in existing Intelligent Electronic Devices (IEDs) with no additional hardware or equipment requirement. Data from the Brazilian Power Grid were used to generate the case studies through the Electromagnetic Transients Program (EMTP). Moreover, field recordings were used to validate the proposed approach. A qualitative comparison with existing methods was accomplished and the obtained results reveal the proposed scheme efficiency, reliability and robustness.
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Key words
Circuit faults,Power transmission lines,Voltage measurement,Delay effects,Transmission line measurements,Shunts (electrical),Resistance,Secondary Arc Extinction,Phasor Measurements,Single-Phase Auto-reclosing,Transmission Lines
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