This paper presents the results of a computer simulation of three real life 13.8kV feeders supplying consumers with non-linear loads which include CFL (Compact Fluorescent Lights) with electronic ballasts. The computer simulations are supported by laboratory testin and in-the-home installation/monitoring of CFL. ?he results of the laboratory tests and in-the-home monitoring were combined with load research information regarding residential load profiles to produce load models for use in computer simulation of the behavior of the three distribution feeders. The input current to electronically ballasted CFL has unusually high distortion, THD.(total harmonic distortion) > 100%.The main conclusion of this work is that for a 15kV class feeder with a maximum 1 OMVA load, the total load of electronically ballasted CFL should not exceed lOOkW if the voltage THD is to be kept 5 5%.BACKGROUND

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