0102030405
VSM-12 Series Permanent Magnetic Operating Mechanism
2025-07-25
The VSM-12 Series is a high-performance permanent magnetic operating mechanism designed for 12kV circuit breakers, integrating advanced magnetic technology to deliver reliable, efficient switching in indoor and outdoor power systems.
Core Design & StruCtural Advantages
Built around a bistable permanent magnetic actuator, the mechanism eliminates traditional mechanical latches and springs, reducing moving parts by 70%. This streamlined design ensures:
- Extended Mechanical Life: Rated for 100,000 mechanical operations, minimizing replacement needs.
- Low Energy Consumption: AC/DC compatible with ≤2A current draw, supporting emergency operations (O-CO-O) even after 2 hours of power loss.
- Anti-Interference Performance: A dedicated control module resists lightning surges and electromagnetic interference, ensuring stability in complex electrical environments.
Performance & Operational Precision
Engineered for consistent performance in critical scenarios, it offers:
- Voltage & Current Compatibility: Supports 12kV systems with currents from 630A to 3,150A, and short-circuit breaking capacities up to 40kA.
- Rapid Response: Ultra-fast opening/closing times (<20ms) for efficient fault interruption, protecting connected equipment.
- Environmental Resilience: Operates in temperatures ranging from -15°C to +40°C and humidity up to 95%, suitable for industrial, rural, and urban settings.
Integration & Application Scope
With standardized mounting dimensions, the VSM-12 Series integrates seamlessly with ZN63 (VS1) circuit breakers, enabling easy retrofitting into existing setups. Its compact design fits space-constrained switchgear, making it ideal for:
- Industrial power systems (mining, ports, manufacturing)
- Renewable energy grids (solar farms, wind parks)
- Urban and rural distribution networks
- Smart grid installations requiring automated switching
Operational Advantages
- Maintenance-Free: No oil or gas systems, eliminating scheduled upkeep needs and reducing lifecycle costs.
- Safety Features: Fire-resistant construction and manual override function for secure operation during power outages.
- Stable Transmission: Low contact resistance ensures consistent current flow, extending associated equipment lifespan.
Key Technical Specifications
| Parameter | Details |
| Rated Voltage | 12kV |
| Compatible Current | 630A–3,150A |
| Short-Circuit Capacity | Up to 40kA |
| Mechanical Life | 100,000 operations |
| Operating Temperature | -15°C to +40°C |