Large equipments means high cost of maintenance but not the T155 Gas insulated Substation. Its negligible maintenance costs make it the no.1 choice of most top industrial companies.It provides Up to 550 kV, 63 kA and up to 6300 A with perfectly tight sealing design and corrosion-proof aluminum enclosure.Providing optimal performance in its risk-free design with current transformers located outside SF6 and a spring-operated CB with unsurpassed experience.Easy to install and operate as well as short manufacturing and commissioning times.Easily understandable layouts.Can be installed indoors or outdoors.The ALSTOM T155 Gas insulated Substation is perfectly suited for a multitude of applications.