An Investigation of Harmonic Content in a Remote Mine Site

In order to limit the amount of harmonic content on an electrical network, information about harmonic levels and their source is required. The aim of this paper is to investigate the correlation between the measured harmonics on the electrical network of an isolated mine site, and the modelled predictions based on equipment information. Measurements were performed by a power quality monitoring equipment, and simulations were performed using a sophisticated power systems design package EDSA. The availability of harmonic filters and other methods for the reduction of harmonics makes the need for accurate harmonic modelling of a network imperative. This paper concludes with the explanations for the major differences between the measured parameters and the modelled predictions.