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Power quality indices are important parameters to assess the operation of a power system. Though there are many power quality indices defined in the literature, the actual operation status of the system is still difficult to observe in some practical applications with the given indices. In this paper, several commonly used and recently proposed power quality indices for harmonic assessment are discussed,...
Scott transformer is widely used in electric railway systems when there are two unbalanced single-phase loads. The transformer reduces unbalance current. This paper investigates that if Scott transformer can also reduce the harmonic current. Our study shows that when there are two harmonic-producing loads connected to each single-phase side of the transformer, the harmonics produced by loads will...
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