What is the difference between a power transformer and a distribution transformer?

Power transformers are used in transmission network of higher voltages for step-up and step down application (33 kV to 400 kV) and are generally rated above 200 MVA.
Distribution transformers are used for lower voltage distribution networks as a means to end user connectivity. (415 V to 11 kV) and are generally rated less than 200 MVA.