Active power differential algorithm for protection of transmission lines

Active power differential algorithm for protection of transmission lines

A differential algorithm for phase selective detection of high impedance single-phase-to-ground faults (HIF) on high voltage lines is presented. It is based on the recognition of the fundamental frequency active power consumption of a resistive fault. In order to maximize the sensitivity of the syst...

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Bibliographische Detailangaben
Hauptverfasser: Oechsle, F., Feser, K., Schuster, N., Philippot, L.
Format: Tagungsbericht
Sprache:eng
Schlagworte:
Circuit faults
Electrical resistance measurement
Fault detection
Impedance
Loss measurement
Power measurement
Power system protection
Power transmission lines
Protective relaying
Voltage
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Beschreibung
Zusammenfassung:A differential algorithm for phase selective detection of high impedance single-phase-to-ground faults (HIF) on high voltage lines is presented. It is based on the recognition of the fundamental frequency active power consumption of a resistive fault. In order to maximize the sensitivity of the system, a method for the approximation of the measuring system's actual uncertainties is proposed. Thus, adaptive tripping thresholds are realized. The algorithm presented relies on the superposition theorem (delta-principle).
DOI:10.1109/PTC.1999.826639