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A new fault locator for three-terminal transmission lines using two-terminal synchronized voltage and current phasors

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3 Author(s)
Ying-Hong Lin ; Dept. of Electr. Eng., Nat. Taiwan Univ., Taipei, Taiwan ; Chih-Wen Liu ; Chi-Shan Yu

With the advent of the high synchronization accuracy of modern phasor measurement units (PMUs), a new approach for accurately locating faults on three-terminal lines is proposed. Using the data measured from two terminals of three-terminal lines, the proposed technique can provide an extremely accurate fault location. An EMTP/ATP simulator is used to demonstrate the performance of the proposed fault locator. The simulation results show that the accuracy of fault location is very high under various fault resistance, fault locations, prefault loading conditions, source impedance and fault types

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Power Delivery, IEEE Transactions on  (Volume:17 ,  Issue: 2 )