Abstract: The present invention is a modular tank coupled to a self-assembly cabinet for ground level transformers. The modular tank includes two interconnected tanks, a front plate and a base. The first tank is larger than the second one and contains the high tension elements. The second tank contains the low tension elements. The front plate supports the electric contacts for both tanks. The base supports the first tank and allows lifting above the ground. The self-assembly cabinet for ground level transformer has a cover divided into two sections. The first section acts as a cover for the modular tank, while the second section acts as a cover for the cabinet. Both cover sections are joined together by a hinge mechanism, and are assembled by sliding on top of the modular tank by a lateral rail mechanism.