70053K Datasheet, PDF (20/28 Pages) List of Unclassifed Manufacturers – THE ADVANTAGES AND BENEFITS OF USING AMVECO TOROIDAL TRANSFORMERS

COMPLIMENTARY PRODUCTS
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 auto-
transformer 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 UP AUTOTRANSFORMER
STEP DOWN AUTOTRANSFORMER
A rule of thumb to apply when considering an autotransformer is that the
voltage across the entire winding should be less than or equal to two
times (2x) the value of the lowest voltage tap (Vhi < 2Vlow).
THREE-PHASE TRANSFORMERS
3-Phase toroidal transformers are simply three separate single phase
units. When convenient, they may be mounted as individual units, adding
flexibility to the design of the housing or, in many cases, stacked together
side by side or stacked on top of each other. For higher powered units,
the relative assembly labor is less using toroids where each phase may be
handled separately (usually by one person). Compare this to E-I trans-
former installations where a large single unit must be moved (requiring
several workers and a hoist).
1500VA Isolation Transformer and 1500VA Autotransformer
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AMVECO Magnetics, Inc. • 10401 Westoffice Dr. • Houston, TX 77042 • [phone] • [phone] • Fax: [phone] • Email: [e-mail] • www.amveco.com