A substation concept for changeable load conditions

In this paper a new type of substation is presented. A need for faster installation and dismantling of distribution substations has been identified. Vattenfall, a Swedish utility, has developed a concept for a new type of indoor 52/24(12) kV substation, easy to install and dismantle with a minimum of work at site. Based on this concept a substation was designed in cooperation with ABB Power Technologies AB. The first substation delivered by ABB has now successfully been in operation for one and a half year and a second one is just commissioned.