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Extra info for Actual Trends in Development of Power System Protection and Automation: Conference Proceedings of International Scientific & Technical Conference (Moscow, September 7–10, 2009)

Sample text

One or both loops can consist of wound wire. If only one loop is constructed as a winding, then the second wire loop can be constructed by returning the wire through or near this winding. If both loops are constructed as windings, then they must be wound in opposite directions. In this way, the Rogowski Coil output voltage induced by currents from the inside conductor(s) will be doubled. 2. Equivalent Circuits Figure 2(a) shows the equivalent circuit of an iron-core current transformer. Magnetizing current Ie introduces amplitude error and phase error.

U. u. u. u. u. u. u. 2. Fault Classification Unit Fault Classification Unit is the next unit to be utilized after the Fault Detection Unit. 1. e. single phase to ground, phase to phase, double phase to ground or three-phase fault) with inception fault time (Tf) 2 msec. and fault resistances (Rf) 0, 25, 50 and 100 ohms. e. 7 input) after divided them by their non fault values. They are taken from the fundamental values of the voltage and current measurements after making Fourier transform every 20 msec.

1093-1104, 1998. [11] M. K. Mohanata, “Performance Evaluation of Adaptive Network Based Fuzzy Inference System Approach for Location of Faults on Transmission Lines Using Monte Carlo Simulation” This paper has been accepted for publication in a future issue of IEEE journal, but has not been fully edited, 2007. [12] MATLAB R2008a. 5. [14] Tamer S. A. Moustafa Hassan, “On-Line Trained Adaptive Neuro-Fuzzy Inference System for Distance Relay of Transmission line Protection”, Accepted for presentation at “The 2009 World Congress on Electronics and Electrical Engineering, (WCEEENG’09), April 6-9, 2009, Cairo, Egypt.

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