Analysis of zero sequence passive filter harmonics mitigation device for building wiring system

Research output: Journal Publications and Reviews (RGC: 21, 22, 62)22_Publication in policy or professional journal

2 Scopus Citations
View graph of relations


Related Research Unit(s)


Original languageEnglish
Pages (from-to)118-123
Journal / PublicationIEE Conference Publication
Issue number488
Publication statusPublished - 2002


Title5th International Conference on Power System Management and Control
PlaceUnited Kingdom
Period17 - 19 April 2002


In normal office building wiring system, the supply is three-phase four-wire system and most of the nonlinear loads are single phased such as personal computer and electronic office equipment. Rising main installation forms the skeleton of the building wiring system. For balanced systems triplen harmonic components of current are added in the neutral conductor, other components are cancelled. In unbalanced condition triplen harmonics and other components of current flow through the neutral conductor. Therefore, a measure of neutral current is important and this will reflect an elementary impression of power quality of the wiring system. Zero sequence harmonic mitigation such as installation of filter in the neutral conductor and its location will be suggested. Moreover, this paper has also explored the third harmonic influence on neutral-earth voltage.