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11kv Air Break Switch Overview:
Maintaining clear visual isolation is mandatory for protecting maintenance personnel working on medium-voltage distribution lines.
Integrating the 11kv air break switch provides a highly dependable mechanical separation point for your grid infrastructure:
- Facilitates straightforward manual operation via a rocker mechanism, allowing technicians to physically verify the line status.
- Functions flawlessly as an outdoor air break switch 11kv, adapting to continuous switching requirements in varied distribution networks.
- Engineered to endure harsh atmospheric conditions, ensuring the 11kv air break switch remains fully operational across extreme temperature ranges from -40℃ to +50℃.
11kv air break switch Key Features:
Improve your network isolation capabilities with the structural and mechanical advantages of the 11kv air break switch:
- Dependable Current Handling: Sustains 400A (up to 630A) rated continuous current alongside a 25kA rated short circuit withstand current safely.
- Robust Mechanical Life: Built to consistently perform up to 1,000 switching operations without experiencing structural fatigue.
- Verified Insulation Level: Provides a creepage distance of ≥420mm, protecting the 11kv air break switch from electrical tracking in Class II pollution environments.
- Weather Resilience: Operates securely under heavy snow, thick icing, and high wind speeds reaching 34m/s without mechanical failure.
Applications & Use Cases For 11kv air break switch:
Isolate medium-voltage infrastructure effectively using hardware designed to meet strict outdoor utility constraints.
The 11kv air break switch is frequently specified for the following power distribution tasks:
- Operating as the primary manual switching point for 11kV outdoor distribution lines and regional substations.
- Interrupting small excitation currents safely utilizing a verified 11kv ab switch installation.
- Providing a visible disconnect distance to protect utility crews during routine line maintenance using standard ab switch 11kv units.
11kv air break switch Technical Specifications:
Review the operational limits and environmental thresholds below to confirm the 11kv air break switch meets your precise engineering requirements.
11kv air break switch Environmental Conditions
| Height above sea level | ≤3000m |
| Air temperature | -40℃ ～ +50℃ |
| Maximum diurnal temperature difference | ≤25℃ |
| Relative humidity | Daily mean 95% / Monthly average 90% |
| Maximum wind speed | ≤34m/s |
| Earthquake intensity | ＜8 degree |
| Icing thickness | ＜10mm |
| Thickness of snow | ＜35mm |
| Irradiance | ＜0.1W/cm² |
| Pollution grade | Ⅱ class |
| Installation site | No fire disaster, explosion danger, chemical corrosion and frequent strenuous vibration places |
11kv air break switch Technical Parameters
| Parameter name | Unit | Technical requirement |
|---|---|---|
| Rated Voltage | kV | 11 |
| Rated continuous Current | A | 400 (630) |
| Rated Frequency | Hz | 50/60 |
| Creepage distance | mm | ≥420 |
| Rated short circuit withstand current | kA | 25 |
| Rated short circuit making current (peak) | kA | 40 |
| Rated withstand current (peak) | kA | 40 |
| Mechanism life | times | 1000 |
| Lightning impulse withstand level (Phase-Earth) | kV | 60 |
| Lightning impulse withstand level (Across interrupter) | kV | 75 |
| 1min Power frequency withstand voltage (Phase-Earth) | kV | 30 |
| 1min Power frequency withstand voltage (Across interrupter) | kV | 48 |
Dimensions:
