Distance protection and fault location utilizing only phase current phasors

M. B. Djurić, Z. M. Radojević, V. V. Terzija

    Research output: Contribution to journalArticlepeer-review


    Two numerical algorithms for fault location and distance protection which use data from one end of transmission line are presented. Both algorithms require only current signals as input data. Voltage signals are unnecessary for determining the unknown distance to the fault. The solution for the most frequent phase to ground fault is presented. The algorithms are relatively simple and easy to be implemented in the on-line application. The algorithms allow for accurate calculation of the fault location irrespective of the fault resistance and load. To illustrate the features of the new algorithms, steady-state and dynamic tests are presented. © 1997 IEEE.
    Original languageEnglish
    Pages (from-to)1020-1024
    Number of pages4
    JournalIEEE Transactions on Power Delivery
    Issue number4
    Publication statusPublished - 1998


    • Computer relaying
    • Distance protection
    • Fault location


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