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    • Adaptive Mho type distance relaying scheme with fault resistance compensation 

      Muhd. Hafizi, Idris; Mohd. Saufi, Ahmad; Ahmad Zaidi, Abdullah, Engr.; Surya Hardi, Amrin (Institute of Electrical and Electronics Engineers (IEEE), 2013-06)
      This paper describes an adaptive distance relaying scheme which can eliminate the effect of fault resistance on distance relay zone reach. Distance relay is commonly used as main protection to protect transmission line ...
    • Induction motors performance under symmetrical voltage sags and interruption - Test result 

      Surya Hardi, Amrin; Syafruddin, Hasan; Muhd. Hafizi, Idris; Z., Pane; Chan, R. (Institute of Electrical and Electronics Engineers (IEEE), 2013-06)
      Main source voltage sags are short circuit faults in power systems. These fault currents propagate entire the circuits connected with them. After the fault is removed by circuit breaker opened, the system voltage may recover ...