Transformers Three Phase

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Calculations involving three phase delta and wye transformers can be straight forward formula problems. The formulas represent definitions associated with these transformer types.

Here is a set of formulas you will see here and no where else. These formulas were developed to assist test takers to answer three phase transformer problems with no knowledge of any of the theory behind the formulas. All it takes to solve three phase transformer problems is substitution algebra skills.

Keep in mind that line values of the primary must be used with line values of the secondary.

Keep in mind that phase values of the primary must be used only with phase values of the secondary.

Find sample problems HERE. There are more pages of practice problems 85  86  87  88  89  90.

Find audio support HERE.

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