Abstract
Based on the analysis of arc voltage and current wave forms in the high power test laboratory FGH-Mannheim (Germany), the new dynamic arc model, taking into account the arc length variation, is derived. Arc is modeled as a current dependent voltage source with the characteristic distorted rectangular waveform and arc length dependent amplitude. Arc is considered as a source of higher harmonics distorting by this other signals in the network. The new arc model is integrated in the ATP-EMTP software package environment. An example of arc computer simulation using the new model is given. The main time and spectral domain features of simulated arc are presented.
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