Last Updated：2025/12/30
Sentence
One
of
the
principal
features
of
the
ordinary
configurations
of
the
transformer
…
is
the
electrical
isolation
that
exists
between
the
primary
and
secondary
windings.
…
Whenever
large
transformation
ratios
are
involved,
safety
demands
that
ordinary
transformers
be
used.
However,
in
instances
where
the
transformation
ratio
is
close
to
unity
(which
minimizes
the
hazard),
a
transformer
employing
a
single
tapped
winding
may
be
used
with
notable
advantages.
Quizzes for review
One of the principal features of the ordinary configurations of the transformer … is the electrical isolation that exists between the primary and secondary windings. … Whenever large transformation ratios are involved, safety demands that ordinary transformers be used. However, in instances where the transformation ratio is close to unity (which minimizes the hazard), a transformer employing a single tapped winding may be used with notable advantages. … This arrangement is called the autotransformer.
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