Introduction
The LDG-12 solid insulation ring main unit switchgear is a fully insulated, fully sealed, and maintenance-free solid insulated vacuum switchgear. This ring main unit features a simple structure, flexible operation, reliable interlocking, and easy installation. It is suitable for 50Hz, 12 kV power systems and is widely used in industrial and civilian cable ring main networks and distribution terminal projects. It serves as a device for power reception and distribution, making it particularly suitable for power distribution in urban residential areas, small substations, switching stations, cable branch boxes, box-type substations, industrial and mining enterprises, shopping malls, airports, subways, wind power generation, hospitals, stadiums, railways, tunnels, and other similar locations.

Model meaning


Use conditions
>Ambient temperature: -45℃~+45℃;
>Humidity: max average relative humidity, daily average ≤ 95%, monthly average ≤ 90%;
>Altitude: ≤ 4000m
>Seismic capacity: 8
>Protection level: electrified body seal IP67, fuse tube IP67, switch cabinet case IP4X.

Technical parameters


Outline dimension drawing