A container arrangement for power transformers that are constructed from individual components. The components are releasably connected to one another in such a way that simple mounting/demounting and separate transportation is made possible. At least some of the components are arranged in containers, wherein each container contains a predetermined type of components in such a way that the components necessary for intended construction variants of the power transformers at the use location are contained in a corresponding selection of containers. This renders possible the correct and efficient mounting of power transformers.