HJ-OSS Series Outdoor Switching Station
Up to 24kV / No Civil Works / 100% In-House Components
The HJ-OSS Series Outdoor Switching Station is an advanced, fully enclosed intelligent power distribution hub designed to replace traditional brick-and-mortar substations. Engineered with 100% HJATIS proprietary medium-voltage components, it offers unmatched quality control and limitless customization. Featuring a highly compact, moisture-proof stainless steel enclosure, it delivers turnkey SCADA-ready power routing for modern urban and industrial grids.
Ideal for Rapid Urban & Industrial Grid Deployment:
- ✓ Urban Underground Cable Networks & Street Hubs
- ✓ Large Residential Complexes & Commercial Centers
- ✓ Industrial Parks requiring multi-way power branching
- ✓ Smart Grid Upgrades (Automated Fault Isolation)
1. 100% Proprietary Components & Deep Customization
Unlike standard integrators, HJATIS manufactures all core internal components—from the Vacuum Circuit Breakers (VCB) to the SF6 Load Break Switches (LBS). This vertical integration guarantees absolute quality control, seamless mechanical compatibility, and the unique ability to offer limitless customization based on your specific single-line diagrams, accommodating everything from 3-way to complex multi-way ring networks.
2. Zero Civil Works & Rapid Deployment
Dramatically reduce your project's CAPEX and deployment time. The HJ-OSS eliminates the need for expensive land acquisition and complex brick-and-mortar substation buildings. The completely assembled and factory-tested station simply requires a basic concrete pad, enabling rapid "plug-and-play" installation in highly congested urban environments.
3. SCADA-Ready Intelligent Automation
Transform your distribution network into a Smart Grid. The switching station is pre-engineered to integrate PTs/CTs, uninterrupted power supplies (UPS), and dedicated compartments for Feeder Terminal Units (FTU) or Data Terminal Units (DTU). This enables flawless execution of "Four Remotes" (telemetry, remote signaling, remote control, and remote adjustment) for centralized fault monitoring and automated grid self-healing.
4. Unyielding Outdoor Resilience
Built to endure decades of extreme weather. The outer enclosure is fabricated from premium double-layered stainless steel (or specialized SMC composite), treated with marine-grade anti-corrosion coatings. Its fully sealed, moisture-proof, and anti-condensation design ensures stable operation regardless of heavy storms, extreme humidity, or severe dust.
Global Factory Acceptance & Turnkey Delivery
Every HJ-OSS unit undergoes a comprehensive integrated Factory Acceptance Test (FAT), simulating extreme operational conditions and verifying all mechanical interlocks and SCADA communication ports. The station is delivered as a fully wired, completely built unit (CBU), ensuring zero integration headaches on site.
Technical Specifications
(Note: Parameters cover standard configurations based on the DFWK series. Due to our proprietary manufacturing capabilities, all internal switchgear layouts, dimensions, and capacities are highly customizable.)
| System & Power Parameters | |
| Rated Voltage (Ur) | 12kV (24kV systems fully customizable) |
|---|---|
| Rated Current | 630A |
| Withstand & Protection Ratings | |
| Rated Short-Time Withstand Current | 20kA (4s) |
| Rated Peak Withstand Current | 50kA |
| Rated Short-Circuit Making Current | 50kA |
| Power Frequency Withstand Voltage | 42kV (Phase-to-Phase/Ground) / 48kV (Across open contacts) |
| Lightning Impulse Withstand (BIL) | 75kV (Phase-to-Phase/Ground) / 85kV (Across open contacts) |
| Mechanical Endurance | 5,000 Operations (Main Switch) |
| Internal Core Components | SF6 Load Break Switches / VCBs / Smart Controllers (100% HJATIS Proprietary Manufacture) |
| Typical Layout Configurations | 3-Way, 4-Way, up to multi-circuit ring setups |
| Enclosure Protection Degree | Standard IP54 / Internal Switchgear IP4X |
Operating Environment
- Ambient Temperature: -35°C to +40°C.
- Altitude: Standard ≤ 1000m (High-altitude custom designs available upon request).
- Relative Humidity: Daily average ≤ 95%, Monthly average ≤ 90%.
- Seismic Resilience: Withstands up to Magnitude 8 earthquake intensity.
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