XGN15-12 High-voltage Semi-insulated Incoming Ring Main Unit

The HXGN-12 air-insulated semi-insulated high-voltage ring main unit (RMU) is designed for 12kV ring distribution power systems, with a rated current up to 630A.

It can be matched with SF6 load break switches, combined switchgear, side-mounted vacuum circuit breakers (VSL, VD4, HD4EVY-12), current transformers, voltage transformers, lightning arresters and other supporting electrical accessories.

The product boasts aesthetic appearance, compact structure, small occupation space and reliable mechanical & electrical interlock performance. It is extensively adopted in urban power grid construction and reconstruction projects, as well as power distribution scenarios of industrial & mining enterprises, high-rise buildings, residential communities, hospitals, schools, parks and other places. It undertakes electric energy receiving and distribution tasks, mainly applied to loop power supply and terminal power distribution, and also fits prefabricated substation installation perfectly.

1. Ambient temperature: Maximum +40℃, minimum -35℃; daily average ambient temperature ≤ +35℃
2. Relative humidity: Daily average ≤ 95%, monthly average ≤ 90%
3. Installation altitude: Standard type ≤ 1000m, high-altitude resistant type ≤ 4000m

Plain Text
┌───────────────┐
Incoming ─┤   12kV Bus    ├─────── SF6 Load Switch ──── Cable Outgoing
          └───────┬───────┘
                  ├─────── VD4 Vacuum Breaker ─── CT ─── Feed Line
                  ├─────── PT Voltage Transformer
                  └─────── Lightning Arrester