The DDPC-4-800 VD4 circuit breaker is a high-performance, medium-voltage vacuum circuit breaker designed for reliable operation in electrical distribution and protection systems. It is part of the VD4 series, known for its robust construction, advanced technology, and versatility in various industrial and utility applications. Key Features and Specifications 1. Voltage and Current Ratings: - Rated voltage: Up to 12 kV (or higher, depending on configuration) - Rated current: 800 A (continuous) - Short-circuit breaking capacity: Typically up to 20 kA or more, ensuring effective fault interruption. 2. Vacuum Interruption Technology: - Utilizes a vacuum interrupter for arc quenching, providing maintenance-free operation, long electrical life, and high dielectric strength. - No SF6 gas or oil, making it environmentally friendly. 3. Compact and Modular Design: - The breaker features a compact, withdrawable design, allowing easy installation and maintenance in switchgear panels. - Modular construction ensures flexibility for different configurations and retrofit applications. 4. Mechanism and Operation: - Spring-operated mechanism ensures fast, reliable opening and closing. - Motorized or manual charging options available. - Integrated anti-pumping and trip-free functions enhance safety. 5. Protection and Control: - Compatible with various protection relays and automation systems. - Supports remote operation via SCADA or local control panels. - Auxiliary contacts and alarm signals for monitoring breaker status. 6. Safety and Compliance: - Meets international standards such as IEC 62271, ANSI, and other regional certifications. - Robust mechanical interlocks prevent unsafe operations. Applications The DDPC-4-800 VD4 breaker is widely used in: - Power distribution networks - Industrial plants (e.g., manufacturing, mining, oil & gas) - Renewable energy systems (solar/wind farms) - Infrastructure projects (hospitals, data centers, railways) Advantages - High Reliability: Minimal wear due to vacuum technology. - Low Maintenance: No gas or oil replenishment needed. - Long Service Life: Designed for thousands of operations. - Environmental Safety: No greenhouse gas emissions. In summary, the DDPC-4-800 VD4 vacuum circuit breaker is a durable, efficient solution for medium-voltage protection, offering superior performance, safety, and adaptability across multiple industries.