AUTOTRANSFORMERS, YIELD REDUCED SIZE AND COSTS
Frequently,
in applications calling for simple voltage step-up or step-down,
and where there is no requirement for electrical isolation,
applying an autotransformer will result in significant size
and weight reductions as well as cost. The power rating
of an autotransformer is given by the expression:
Prated
= Pout X (Vhi - Vlow)/Vhi
Vlow = voltage from lower voltage tap
(input or output)
Vhi = voltage across higher voltage tap (output
or input)
STEP
DOWN AUTO-TRANSFORMER
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