positive-sequence power in a three-phase system

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• Symmetrical components — In electrical engineering, the method of Symmetrical components is used to simplify analysis of unbalanced three phase power systems.DescriptionCharles Legeyt Fortescue in a paper presented in 1918 ( Method of Symmetrical Co Ordinates Applied to… …   Wikipedia

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• Asymmetric fault — In power engineering, specifically three phase power, an asymmetric or unbalanced fault is a fault which does not affect each of the three phases equally. This is in contrast to a symmetric fault, where each of the phases is affected equally. In… …   Wikipedia

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