Lateral Fixed Vacuum Breaker ZN6 (VS1) – Technical Overview The Lateral Fixed Vacuum Breaker ZN6 (VS1) is a medium-voltage vacuum circuit breaker designed for reliable operation in power distribution systems. It integrates advanced vacuum interrupter technology with a robust mechanical structure, ensuring high performance in switching, protection, and isolation applications. Key Features 1. Vacuum Interruption Technology The breaker employs a high-quality vacuum interrupter, which extinguishes arcs efficiently in a sealed environment. This ensures minimal contact erosion, long electrical life, and maintenance-free operation. The vacuum chamber provides excellent dielectric strength, enabling reliable interruption of short-circuit currents. 2. Fixed Installation Design The ZN6 (VS1) is designed for fixed mounting in switchgear panels, offering a compact and space-saving solution. Its rigid construction ensures stability during high-current interruptions and mechanical shocks. 3. Rated Parameters - Voltage Rating: Typically 7.2–12 kV, suitable for industrial and utility applications. - Rated Current: Up to 1250 A or higher, depending on configuration. - Short-Circuit Breaking Capacity: 20–31.5 kA, ensuring reliable fault protection. - Mechanical Life: Over 10,000 operations, reducing long-term maintenance costs. 4. Spring-Operated Mechanism The breaker utilizes a spring-energy storage mechanism for quick and consistent switching. The stored-energy design allows both manual and motorized operation, ensuring flexibility in control schemes. 5. Safety & Protection - Integrated Grounding Switch: Provides safe isolation for maintenance. - Anti-Reset Mechanism: Prevents accidental reclosure during fault conditions. - IP-Rated Enclosure: Protects against dust and moisture ingress. 6. Compliance & Standards The ZN6 (VS1) complies with international standards such as IEC 62271, GB/T 1984, and ANSI C37.04, ensuring reliability in diverse power systems. Applications - Industrial Power Distribution: Protects motors, transformers, and feeders. - Renewable Energy Systems: Ensures safe disconnection in solar/wind farms. - Utility Substations: Used in ring main units (RMUs) and secondary distribution. Advantages - Low Maintenance: Vacuum technology eliminates the need for gas or oil replenishment. - High Durability: Corrosion-resistant materials enhance longevity. - Easy Integration: Compatible with various protection relays and SCADA systems. In summary, the Lateral Fixed Vacuum Breaker ZN6 (VS1) is a high-performance, reliable solution for medium-voltage protection, combining advanced vacuum interruption with a rugged, fixed-mount design. Its versatility and compliance with global standards make it suitable for a wide range of electrical distribution applications.