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The increase in penetration and usage of harmonic rich loads can be expected to contribute to increased harmonic levels in distribution systems. The combination of the unbalanced nature of residential loads and usage of wye-wye service transformers means one can expect to see a continued increase in third harmonic levels in utility distribution systems. Also, the harmonic impact can be further exacerbated...
The widespread usage of more efficient but potentially harmonic rich residential loads such as CFL (Compact Fluorescent Light) lamps can be expected to contribute to increased harmonic levels in distribution systems. In some cases, additional distortion can push already high harmonic levels above the recommended limits. Also, the impact can be further exacerbated by the presence of reactive compensation...
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