VS1-12kV Vacuum Circuit Breaker Technical Overview The VS1-12kV is a high-performance vacuum circuit breaker (VCB) designed for medium-voltage power distribution systems, typically rated at 12kV. It is widely used in industrial, commercial, and utility applications due to its reliability, compact design, and advanced protection capabilities. Key Features 1. Vacuum Interruption Technology The breaker employs a vacuum interrupter as the arc-quenching medium, ensuring fast and efficient interruption of fault currents. The vacuum environment provides superior dielectric strength and minimal contact erosion, resulting in a long operational lifespan. 2. Rated Parameters - Rated Voltage: 12kV - Rated Current: Typically 630A, 1250A, or 1600A (customizable) - Short-Circuit Breaking Capacity: Up to 20kA or 25kA (depending on configuration) - Mechanical Life: 10,000–20,000 operations 3. Compact and Modular Design The VS1-12kV features a fixed or withdrawable design, allowing easy installation and maintenance in switchgear panels. Its modular construction ensures compatibility with standard metal-clad or metal-enclosed switchgear. 4. Spring-Operated Mechanism Equipped with a spring-stored energy mechanism, the breaker ensures quick and reliable opening/closing operations. The mechanism can be manually charged or motorized for remote operation. 5. Protection and Control - Integrated overcurrent, short-circuit, and earth fault protection (when used with relays). - Supports manual, electric, or remote operation via SCADA systems. - Auxiliary contacts and alarm signals for status monitoring. 6. Safety and Compliance - Complies with IEC 62271, GB/T, and ANSI standards. - IP4X protection against dust and accidental contact. - Robust insulation materials ensure safe operation in harsh environments. Applications The VS1-12kV is ideal for: - Power distribution networks (transformers, feeders, capacitor banks). - Industrial plants (cement, steel, mining). - Renewable energy systems (solar/wind farms). - Commercial buildings and data centers. Advantages - Maintenance-free due to vacuum technology. - Environmentally friendly (no SF6 gas). - High breaking capacity with minimal wear. - Easy integration with digital protection systems. In summary, the VS1-12kV vacuum circuit breaker is a versatile and dependable solution for medium-voltage power systems, offering high performance, safety, and durability. Its advanced design makes it suitable for modern smart grid applications.