XGW□-12 Box-Type Switching Station (Ring Main Unit)
Outdoor intelligent switching station integrating 12/24 kV switchgear, FTU/RTU, metering and UPS in one sealed stainless-steel enclosure — no civil works, small footprint, fast deployment.
- Configured with SF6 ring-main load-break switches
- Centralised ring-main supply for local user clusters
- Easy installation; mechanical program interlock available for safe maintenance
- Full protection class with all features of an all-condition cable distribution box
- Three- or four-circuit integrated SF6 ring-main load-switch cable branching available
- Seamless connection with DTU/FTU and one/two-way telemetry devices for full SCADA (four-remote) functions
A cleaner, more reliable approach to MV switching
The HP-ELS series replaces SF₆ with environmentally friendly insulating media while keeping the proven safety and performance utilities expect from gas-insulated switchgear.
Product Overview
As cities grow denser, traditional civil-built switching stations are limited by land and planning, giving rise to the outdoor intelligent switching station (outdoor ring main unit). It needs no civil works, occupies little space, is flexibly configured and more reliable, and greatly shortens construction, installation and commissioning while lowering overall cost.
Primary–Secondary Integration
The cabinet integrates fully commissioned 12/24 kV switchgear, breakers, load switches, current/voltage transformers, power PT, FTU/RTU, communication control unit (CCU), metering and automatic meter-reading, UPS and indicators inside a movable, sealed, moisture-proof stainless-steel enclosure — achieving integration of primary and secondary systems and modular assembly for urban grids, shortening the build cycle and markedly improving reliability.
Technical specifications
Headline ratings at a glance, followed by the full technical data sheet. Exact values are confirmed per project configuration.
| Parameter | Value |
|---|---|
| Rated voltage | 10 kV |
| Rated current | 630 A |
| Power-frequency withstand (ph-ph / to earth / break) | 42 / 48 kV · 1 min |
| Impulse withstand (lightning & switching) | 75 / 85 kV |
| Rated breaking current | 630 A |
| Capacitive / inductive breaking current | 45 A / 16 A |
| Rated peak withstand current (0.3 s) | 50 kA |
| Rated short-time withstand current (4 s) | 20 kA |
| Rated making current | 50 kA |
| Operating cycles at 630 A | > 100 |
| Mechanical operating cycles | 5000 |
| ZYF-12-111K | 1400×1000×1700 |
| ZYF-12-121K | 1400×1150×1700 |
| ZYF-12-1111K | 1700×1000×1700 |
| ZYF-12-1221K | 1700×1150×1700 |
Reading the model designation
Generated automatically from each product's model code.
Overall dimensions
Cabinet height, width and depth options. Selection depends on cable type and incoming / outgoing configuration.
| Item | Dimensions (mm) | Scope of application |
|---|---|---|
| Width W | 1400 / 1700 | By primary scheme |
| Depth D | 1000 / 1150 | By primary scheme |
| Height H | 1700 | All models |
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