Product introduction
The Aierway HB-12 is a next-generation, environmentally conscious gas insulated switchgear (GIS) designed for medium-voltage applications up to 12kV. It represents a significant advancement in switchgear technology by utilizing eco-friendly insulating gases as alternatives to traditional SF₆, aligning with global sustainability initiatives and stringent environmental regulations.
Key Features
1. Eco-Friendly Gas Technology
-SF₆-Free or Reduced-SF₆ Formulations:** Utilizes environmentally benign gas mixtures (such as clean air, N₂, CO₂, or fluoronitrile-based blends) with significantly lower Global Warming Potential (GWP).
– Minimal Environmental Impact:** GWP reduced by over 99% compared to pure SF₆, supporting carbon footprint reduction goals.
– Future-Proof Compliance:** Meets upcoming international regulations (EU F-Gas Regulation, EPA guidelines) restricting SF₆ usage.
2. Compact & Sealed Design
– Gas-Insulated Modules:** All live parts are enclosed in sealed, pressurized gas compartments, ensuring high reliability and safety.
– Space Optimization:** Compact footprint, ideal for space-constrained urban substations, high-rise buildings, and underground installations.
– Corrosion-Resistant Enclosure:** Powder-coated steel or stainless steel construction for durability in harsh environments.
3. Enhanced Safety & Reliability
-Fully Enclosed Design:** Eliminates risk of external contact with live parts, ensuring operator safety.
Technical data table
| No. | Item | C Module Load Break Switch |
F Module Combination Electrical Apparatus |
V Module Vacuum CB & Isolation/Earthing Switch |
|---|---|---|---|---|
| 1 | Rated Voltage | 12 | 12 | 12 |
| 2 | 1min Power Frequency Withstand Voltage | 42/48 | 42/48 | 42/48 |
| 3 | Lightning Impulse Withstand Voltage | 75/85 kV | 75/85 | 75/85 |
| 4 | Rated Current | 630 | 125 | 630 |
| 5 | Breaking Capacity | 630 | ||
| 6 | Closed-Loop Breaking Current | 135 | ||
| 7 | Cable Charging Breaking Current | 31.5 | ||
| 8 | 5% Active Load Breaking Current | 200 | ||
| 9 | Earth Fault Breaking Current | 31.5* | 25 | |
| 10 | Short-Circuit Breaking Current | 1500 | ||
| 11 | Short-Circuit Transfer Current | 125 | ||
| 12 | Inverse Time Relay Maximum Current | 63 | 80* | 25 |
| 13 | Short-Circuit Making Current | 25 | 25 | |
| 14 | Short-Circuit Time | 4 | 4 | |
| 15 | Short-Circuit Duration | 5000 | ||
| 16 | Mechanical Life | 5000 | 5000 | 10000/3000 |
| 17 | Gas Pressure | 0.025 bar (20℃) | 0.025 bar (20℃) | 0.025 bar (20℃) |
| 18 | Annual Leakage Rate | ≤005% | ≤005% | ≤005% |
| 19 | Arc Extinguishing Method | Vacuum Arc Extinction | Vacuum Arc Extinction | Vacuum Arc Extinction |
| 20 | Protection Class | IP67/3X (Gas Chamber/Enclosure) | IP67/3X (Gas Chamber/Enclosure) | IP67/3X (Gas Chamber/Enclosure) |





