A frame for an electrical apparatus includes: a plurality of support structures configured to hold one phase component of the electrical apparatus; and a plurality of base portions. Each base portion is connected to first joint assembly on a first one of the plurality of support structures and to a second joint assembly on a second one of the plurality of support structures. Each base portion is configured to rotate about a joint in the first joint assembly and a joint in the second joint assembly between a working position and a transport position.