THREE-PHASE TRANSFORMERS
Three-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 transformer installations where a large single unit
must be moved
(requiring several workers and a hoist).
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