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Journal of the Korean Institute of Illuminating and Electrical Installation Engineers

ISO Journal TitleJ Korean Inst. IIIum. Electr. Install. Eng.
Title Characteristics Analysis of Power Capacitor at Sag & Swell
Authors Jong-Gyeum Kim ; Young-Jeen Park ; Il-Jung Kim
Page pp.21-28
ISSN 1225-1135
Keywords Capacitor ; Reactor ; Swell ; Sag ; Power Quality
Abstract Power capacitor has been used to compensate for the low power factor of inductive load and to reduce harmonics generated by the power conversion device with reactor. Power quality is mainly referred to the voltage quality and it is very important for the stable operation of load. But if voltage rms is temporary changed, it acts on capacitor as an electrical stress. In this paper, we analyzed that capacitor can be given by voltage, current and capacity"s variance under the sag and swell condition. If reactor is connected at capacitor, sag can be aside from the question. But it can act an amount of stress on capacitor in the swell region.