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http://dx.doi.org/10.5207/JIEIE.2008.22.5.064

Characteristics Analysis of Power Capacitor with Unbalanced Voltage Operation  

Kim, Jong-Gyeum (강릉대학교 전기정보통신공학부)
Park, Young-Jeen (강릉대학교 전기정보통신공학부)
Lee, Eun-Woong (충남대 전기공학과)
Publication Information
Journal of the Korean Institute of Illuminating and Electrical Installation Engineers / v.22, no.5, 2008 , pp. 64-72 More about this Journal
Abstract
In the three phase four wire system, voltage unbalance caused by the unbalanced load operation, gives rise to current unbalance and de-rates by the increase of machine's loss and eventually enlarges power capacity and besides has a bad effect on power quality. Power capacitor has been used for the power factor correction of inductive load and the voltage stability of power system. And it uses instead of power side for magnetic excitation of induction motor. If voltage unbalance keeps up, it affects on voltage stress at the power capacitor and finally can be caused breakdown. In this paper, we analysed that voltage and current of power capacitor increases by the voltage unbalance factor and its stress is growing more and more.
Keywords
Voltage unbalance; Power capacitor; Reactive power; p-q theory; Induction motor;
Citations & Related Records
Times Cited By KSCI : 2  (Citation Analysis)
연도 인용수 순위
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