This ring main unit is new generation miniature vacuum ring main unit, to replace SF6ring main unit. It is suitable for rated voltage 12kV, frequency 50Hz ring power supply and dual power radiation supply system. As an electric control and protect device, it can be placed in box-type substation.

XGN68-12(F) indoor AC metal-enclosed ring main unit adopt modular design with vacuum interrupter and spring operating mechanism. It has features of compact structure, small size, simple operation, reliable interlock, long mechanical life and so on. This switch can open and close rated load current, close rated short-circuit making current, open transformer no-load current, capacitive current between capacitor group and a certain distance of overhead lines. It can control, measure, protect the circuit and does reliable anti-misoperation interlock.