Transformers Three Phase
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.
