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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 A Lecture Note on PU Method thru Calculation of a Simple DC Circuit and Voltage/Fault Analysis of Industrial Power Systems using Actual Data
Authors Sang-joong Lee
DOI http://dx.doi.org/10.5207/JIEIE.2014.28.12.045
Page pp.45-54
ISSN 1225-1135
Keywords Pu ; DC Circuit ; System Base ; Vector Reference ; Fault Analysis
Abstract This paper presents a lecture note of pu method for power system analysis. The author tries to help students in class better understand the fundamental of pu calculation using a very simple DC circuit. And a voltage drop calculation by pu method for a distribution system is given to help understand the importance of the vector reference in AC circuit analysis. A short current calculation by pu method for a power system with a generator, transformer and transmission line is also presented to show how pu calculation can be applied to real power systems, in which all the data are the ones currently being used by KEPCO and other industrial sites.