Hxgn15-12 unit type ring network switchgear is a new generation of light and flexible, compact and expandable metal enclosed switchgear. Its structure is simple, operation is flexible, interlock is reliable, installation is convenient, modular design realizes any scheme combination, meets all kinds of wiring methods; each circuit can choose SF6 load switch, vacuum load Jue off and vacuum circuit breaker for control; the setting of rear relief channel makes the operation of the switch cabinet have higher safety and reliability.