XGN2—12箱型固定式金属封闭开关柜(简称环网柜)适用于交流50Hz，10kv的网络作为开断负荷和短路及关合短路电流作用。本环网柜配用手动、电动弹簧机构来操作负荷开关，接地开关和开关配用手动操作机构。 本环网柜是以空气为绝缘介质的，主要配装ZFN一10/630型真空负荷开关，主要方案有进线柜和出线柜等。
HXGN一12 tank fixed type metal enclosed switchgear(ring main unit)is used for AC50HZ，10KV network as broken loading，short—circuit and closing short—circuit．The ring main unit equipped with manual/power—operated spring charged mechanism to operate loading switch，earthing switch and isolating switch equipped with manual operated mecha—nism．
This cubicle uses air as an insulating medium and provided with a ZFN-10/630 vacuum load switch；Main schemes include incoming cubicle and outgoing cubicle．
