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Power Factor, Harmonics & Power Quality

K-Rated Transformer: Nameplate and Harmonic Weighting

A 1,500 kVA, 34.5 kV to 480Y/277 V K-9 transformer with its nameplate, a chart of harmonic weighting factors (h²) from the 1st to the 13th harmonic, and an example K-factor of 4.96 leading to selection of a K-9 rating.

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