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Development and Evaluation of Power System Fault Location Scheme using Practical Fault Data

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5 Author(s)
Yoshimura, K. ; Central Res. Inst. of Electr. Power Ind., Tokyo ; Tsutsumi, Y. ; Suetsugu, Y. ; Kihara, H.
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This paper presents a new scheme of fault location on power system comparing actual measurements of voltage sag to fault current calculation results. Using a two-circuit transmission line fault analysis tool developed by CRIEPI for calculating voltage sag value, this scheme can locate a faulted point not depending on causes of the faults. By estimating fault point impedance, highly accurate fault location is expected. From a viewpoint of practical use, the presented scheme is applied to a real power system model of a Japanese electric power company using practical voltage sag measurement values at substations on subtransmission system. Results of this evaluation show that this scheme has a possibility of having practical accuracy of the fault location

Published in:

Power Systems Conference and Exposition, 2006. PSCE '06. 2006 IEEE PES

Date of Conference:

Oct. 29 2006-Nov. 1 2006