The 11kv 33kv Air-insulated Environmental Friendly Switchgear is a next-generation medium-voltage distribution system designed for safe, stable and environmentally responsible power management.
The 11kv 33kv Air-insulated Environmental Friendly Switchgear delivers strong performance combined with environmental compliance:
SF6-Free Green Design: Uses dry air/N₂ insulation, eliminating greenhouse gas emissions
High Electrical Strength: Achieves up to 65 kV power frequency withstand capability
Compact Modular Structure: Easy installation, expansion, and maintenance flexibility
Enhanced Safety Protection: IP4X enclosure and internal arc resistance design
Smart Monitoring System: Real-time detection of partial discharge and contact wear
This makes the 11kv 33kv Air-insulated Environmental Friendly Switchgear a reliable choice for future-oriented power systems.
The 11kv 33kv Air-insulated Environmental Friendly Switchgear operates through three integrated subsystems:
Insulation System: Sealed gas chamber maintains stable dielectric strength using clean air or nitrogen mixture
Arc Interruption System: Vacuum interrupters extinguish electrical arcs within milliseconds during faults
Protection System: Pressure relief channels and mechanical/electrical interlocks ensure operator and equipment safety
This coordinated design enables the 11kv 33kv Air-insulated Environmental Friendly Switchgear to maintain high stability under fault and overload conditions.
The 11kv 33kv Air-insulated Environmental-friendly Switchgear is widely used in:
Urban power grid modernization projects
Solar and wind renewable energy substations
Rail transit and traction power systems
Data centers and commercial complexes
Its adaptability allows the 11kv 33kv Air-insulated Environmental-friendly Switchgear to perform efficiently in both public infrastructure and industrial environments.
The 11kv 33kv Air-insulated Environmental Friendly Switchgear is designed for demanding conditions:
Ambient temperature: -25°C to +40°C (up to +55°C derated)
Relative humidity: up to 95% at 25°C with anti-condensation measures
Seismic resistance: up to magnitude 8 (0.3g)
Installation inclination: ≤3°
Outdoor versions support corrosion resistance for C4 environments
These features ensure stable performance of the 11kv 33kv Air-insulated Environmental-friendly Switchgear in diverse global applications.
| Item | Parameters |
| Type of arc extinguishing chamber | Vacuum |
| Rated voltage | 12KV |
| Rated frequency | 50Hz |
| Rated current | 630A |
| Temperature rise experiment | 1.1Ir |
| Rated power frequency 1min withstand voltage | Interphase,phase to ground fracture 41KA,48KA |
| Rated peak lightning impulse withstand voltage(1.2/50us) | Interphase,phase to ground fracture 75KA,85KA |
| Short time power frequency withstand voltage of auxiliary and control circuits | 2KV |
| Rated short-circuit breaking current frequency | 25KV |
| Rated short-circuit breaking current/duration | Main circuit,grounding switch grounding circuit 20/4KA/s,21.7/2KA/s |
| Rated peak withstand current | 63KA |
| Rated short-circuit making current | 63KA |
| Rated active load current | 630A |
| Partial discharge (measured at 1.2ur) | ≤20pC |
Address
No. 58 Binhainan Fourth Road, Economic Development Zone, Yueqing City, Wenzhou City, Zhejiang Province, China
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