How to Hook Up a 480V, 208V, or 120V Transformer

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Transformers serve as voltage step-up or step-down devices where the voltage applied to the input of the transformer is increased or decreased based on the transformer ratio. Transformers are essential to power distribution systems because utility companies must transform the main utility power as required to power households and buildings. Transformers are rated in various voltage and power levels and come in single-phase or three-phase versions. However, regardless of the rated voltage or the phase configuration, they all have same basic hookup.

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About the Author

Dwight Chestnut has been a freelance business researcher and article writer for over 18 years. He has published several business articles online and written several business ebooks. Chestnut holds a bachelor's degree in electrical engineering from the University of Mississippi (1980) and a Master of Business Administration from University of Phoenix (2004).

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