Containers are easy to transport and fast to install, by reducing foundation works as well as installation and commissioning effort on site. . Containerized mobile substations are sheltered and address applications in challenging environmental conditions including areas with high pollution, high humidity, extreme temperatures or sand storms. This significantly reduces construction time and minimizes on-site labor. . Protection Devices: Protection devices are essential for preventing damage to the substation and the wider electrical network. . Compact structure and small footprint: Containerized substations make full use of the space advantages of containers, integrate the originally large and complex substation equipment in a limited space, effectively reduce the footprint, and are especially suitable for areas with tight land resources. . In contrast to conventional substations, the local assembly and construction works for container substations are reduced to a minimum. They are supplied completely prefabricated and only need be set up and connected to an external supply.