In this paper, we first prove a
limit theorem for a sequence of quadratic functionals on an abstract Wiener space
which generalizes a Cameron-Martin limit theorem in the Wiener space;
and next we prove a version of a converse measurability theorem for the
Wiener space in the setting of abstract Wiener spaces. Using these results, we
discuss scale-invariant measurability and translations in an abstract Wiener
space.