Answer / sathiarajan

Yes it can. But it will get more heat, Bcos of hystersis &
Eddy current loss. The Core, winding impedance, etc have
been calculated for 50Hz. If it is increased to 60Hz then
impedance of the transformer will also increase. It can
work with 60Hz under light load for a very short duration.

Answer / raghvendra kumar

Yes it is possible at 60 Hz also and it will work same as at
50 Hz but losses i.e. Eddy current loss is directly
propotional to square of frequency and hysteresis loss is
directly proporional to frequency (generally), so if we put
it on 60 Hz then more constant loss will occur which reduces
the efficiency as well as rating (due to Thermal limit).

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