YB series compact substation, also known as European type box type substation, complies with GB/T17467″High Voltage/Low Voltage Prefabricated Substation” and adopts the intemational standard lEC62271. As anew type of power supply and distribution device, the European type box type substation is composed of fouiparts: high voltage switchgear, low voltage distribution cabinet, distribution transfommer, and outer shel.