Please use this identifier to cite or link to this item: http://scholarbank.nus.edu.sg/handle/10635/72619
Title: EXCESSIVE NEUTRAL CURRENTS IN THREE-PHASE FLUORESCENT LIGHTING CIRCUITS.
Authors: Liew, A.C. 
Issue Date: 1987
Source: Liew, A.C. (1987). EXCESSIVE NEUTRAL CURRENTS IN THREE-PHASE FLUORESCENT LIGHTING CIRCUITS.. Conference Record - IAS Annual Meeting (IEEE Industry Applications Society) : 1364-1371. ScholarBank@NUS Repository.
Abstract: Causes for excessive neutral currents amounting to 75% and 157% of phase current values in two installations supplying predominantly fluorescent lighting circuits have been identified. These neutral currents are accounted for by three main components; fundamental third-phase current unbalance, third-harmonic currents caused by saturation of ballasts, and more third-harmonic current caused by third-harmonic voltage waveform distortion in the supply. Solutions to overcome the problem are outlined, including a scheme that cancels third-harmonic currents along a common neutral conductor in the form of a six-phase system supplied by two transformers connected in antiphase.
Source Title: Conference Record - IAS Annual Meeting (IEEE Industry Applications Society)
URI: http://scholarbank.nus.edu.sg/handle/10635/72619
ISSN: 01972618
Appears in Collections:Staff Publications

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