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http://dx.doi.org/10.5207/JIEIE.2008.22.10.076

A Study on the Problems of the Neutral Line Due to the 3rd Harmonic  

Cho, Nam-Hun (한국전력공사 전력연구원)
Jung, Jum-Soo (한국전력공사 전력연구원)
Park, Yong-Woo (한국전력공사 전력연구원)
Ha, Bok-Nam (한국전력공사 전력연구원)
Lee, Heung-Ho (충남대학교 전기정보통신공학부 전기공학)
Publication Information
Journal of the Korean Institute of Illuminating and Electrical Installation Engineers / v.22, no.10, 2008 , pp. 76-83 More about this Journal
Abstract
The neutral current is made of both the load unbalanced current and the 3rd harmonic. The 3rd harmonic which is the source of the main neutral current is generated from the loads using bridge rectifier circuits on their input produce currents. TV, computer and monitor which are belong to IEC 61000-3-2 Class D are the main 3rd harmonic current sources. In order to show the affect of the distribution system by these disturbances, this paper has studied the current standards of the Korea Electric and considers the problem of the neutral common.
Keywords
Harmonic; Propagation; Neutral line current; 3rd harmonic;
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