A hydrogen cooled generator assembly includes a hydrogen cooled generator and a fundament, wherein the generator is mounted on the fundament, and wherein the fundament includes at least one cavity underneath the generator. The at least one cavity includes at least one terminal box disposed adjacent to the generator and extending downward from the generator for collection of a plurality of electrical links from the generator; at least one collection box disposed beneath the at least one terminal box having a top wall and a first and a second side wall and configured to guide the plurality of electrical links from the at least one terminal box in a further downward direction; a lateral space; and a seal plate covering the lateral space at an upper end of the lateral space.