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http://dx.doi.org/10.5207/JIEIE.2008.22.10.056

Calculation of the Harmonic Emission Limit for low-Voltage Electrical Equipment  

Kang, Moon-Ho (전력연구원 배전품질안전그룹)
Song, Yang-Hoi (지식경제부 기술표준원 디지털전자표준과)
Lee, Heung-Ho (충남대학교 전기공학과)
Publication Information
Journal of the Korean Institute of Illuminating and Electrical Installation Engineers / v.22, no.10, 2008 , pp. 56-61 More about this Journal
Abstract
Because the harmonic disturbance characteristic which makes voltage drop and the deterioration of instantaneous power quality in electrical power system overheats the NGR and the customer capacitor and malfunctions the OCGR and AMR, it is necessary for electric power company to take active measures to reduce this disturbance. International Electrotechnical Commission(IEC) 61000-3-2 specifies limits for harmonic current emissions generated by low voltage(LV) electrical equipment whose input current $\leq$ 16(A) per phase. Analysis shows that limits for Class A equipment in IEC are calculated using the reference impedance of LV system and maximum permissible voltage and limits for other Classes are also calculated based on limits for Class A. Therefore we have calculated four(4) internal limits for LV electrical equipment using the korea reference impedance and maximum permissible voltage in this paper.
Keywords
IEC 61000-3-2; Reference Impedance; Maximum permissible voltage;
Citations & Related Records
Times Cited By KSCI : 1  (Citation Analysis)
연도 인용수 순위
1 IEC TR 60725, "Consideration of reference impedances and public supply network impedances for use in determining disturbance characteristics of electrical equipment having a rated current $\leq$75A per phase", 2005
2 IEC Std 61000-2-4, "Compatibility levels in industrial plants for low-frequency conducted disturbances", 2002
3 M. H. Kang, Y. H. Song, et al., "The Determination of Reference Impedance on 1P2W Low Voltage System in Korea", Journal of the Korean Institute of Illuminating and Electrical Installation Engineers, Vol. 21, No. 10, pp. 35-39, 2007. 12   과학기술학회마을   DOI
4 IEC TR 61000-3-6, "Asseeement of emission limits for distorting loads in MV and HV power systems - Basic EMC publication", 1996
5 IEC Std 61000-3-2, "Limits for harmonic current emissions (Equipment input current $\leq$ 16A per phase)", 2004
6 IEC SC77A WG1, "Rationale for harmonics emission limits", 1996