The measurement & Analysis of Voltage Unbalance Factor at Three Phase Four Wire Load System

3상 4선식 부하설비의 전압 불평형율 측정 및 분석

  • Published : 2004.04.22

Abstract

Most of LV customer has been composed the 3-phase four wire system distribution system which is supplying simultaneously at the 1-phase & 3-phase load. In this system, the composition of the power apparatus system is simple rather than conventional separation mode of the 1-phase & 3-phase, But due to uneven load unbalance or unclean power quality, various kinds such as derating or power losses become an issue. In this paper, we measured and analyzed voltage and current waveform in the field, compared with internationally allowable voltage unbalance limits.

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