YGH-12 environmental protection gas insulated ring main unit series is a complete set of powerdistribution devices for 12kV,three-phase AC 50Hz,single busbar and single busbar segmentedsystem.The product has the characteristics of simple structure,flexible operation,reliableinterlocking,convenient installation,etc.It can provide satisfactory technical solutions for variousapplication occasions and different users.The adoption of sensing technology and informationtechnology,coupled withtechnical performance and simple and flexible configuration schemes,canmeet the ever-changing needs of the market and are suitable for the requirements of gridintelligence.