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Summary form only given, as follows. This paper presents the development of a wavelet-based scheme, for distinguishing between transformer inrush currents and power system fault currents, which proved to provide a reliable, fast and computationally efficient tool. The operating time of the scheme is less than half power frequency cycle (based on 5 kHz sampling rate). In this work, a wavelet transform...
Computer modeling of relays helps engineers understand how protection systems behave during faults and other disturbances. Simulators can assess the reliability of a protection system, determine the effect of correct and incorrect operation on a power network and if necessary help a relay manufacturer investigate new design ideas. The PSCAD/EMTDC transient simulator was used to model the effect of...
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