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A Fault Locating Algorithm for the Resonant Grounding System Based on the Parameter Identification under Charge Transient

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3 Author(s)
Zhang Shu ; Sch. of Electr. Eng., Southwest Jiaotong Univ., Chengdu, China ; Shang Wu-jun ; He Zheng-you

Aim at the problem of single-phase ground fault for resonant grounding system (that is, arc-suppression coil grounded distribution network), a fault location algorithm based on parameter identification in the charging transient is proposed in this paper. The method uses charge transient electrical quantity generated at the moment of a single-phase ground fault occurs to identify line parameters, and takes the fault location considering that the total inductance between the bus and the fault is proportional to the distance. In a 35kV model of resonant grounding system, the efficiency is verified by simulation, with different fault distance, different fault time.

Published in:

Power and Energy Engineering Conference (APPEEC), 2012 Asia-Pacific

Date of Conference:

27-29 March 2012