Widely used in 362kV EHV transmission substations, power plant switchyards, hybrid gas insulated switchgear projects for power grid switching, overload and short-circuit fault protection.
This drawing specifies outline dimension and performance indexes of RHD-362 SF6 dead tank circuit breaker.
RHD-362 is SF6 gas insulated dead tank circuit breaker complying with IEC 62271-1 and IEC 62271-100 and KEMA type tested. Rated voltage 362kV, rated current up to 5000A, short-circuit breaking current up to 63kA. It adopts self-blast arc quenching and oil-free pure spring operating mechanism. Bushing-integrated CT is optional. It is widely applied for circuit switching and fault protection in 362kV extra-high voltage transmission substations.
Dead Tank SF6 Circuit Breaker (550kV) offers high performance and reliable arc interruption. Its robust design ensures stability for ultra high voltage systems.
363kV Dead Tank SF6 Circuit Breaker features a robust design and high reliability with excellent arc extinguishing for power system protection.
Outdoor dead tank SF6 circuit breaker direct supply for 362kV systems, delivering reliable high-voltage protection for transmission networks.
In a live tank breaker, the arc chamber is mounted at the top or side of the column, exposed to ambient air. In a dead tank breaker, the arc chamber is placed inside the metal tank, fully sealed.
Live tank breakers are well-suited for outdoor high-voltage distribution with a dispersed layout. Dead tank breakers flexibly adapt to both indoor and outdoor applications, especially in space-constrained substations or where compact installation is required.
The RHD series features a specialized low-center-of-gravity design that provides 9-grade seismic resistance. This ensures the Dead Tank Vacuum Circuit Breaker remains structurally sound and maintains rock-solid performance even during high-intensity earthquake events, making it a proven choice for high-risk geographical areas.
Q:How does the Dead Tank Vacuum Circuit Breaker achieve zero-pollution operation?
A:Unlike traditional high-voltage equipment, this Dead Tank Vacuum Circuit Breaker uses high-vacuum technology (degree 10⁻⁴Pa) for arc extinction instead of SF6 gas. By eliminating greenhouse gases, it removes the risk of toxic leaks and aligns with global green energy trends and strict environmental standards.
Q:Can this Dead Tank Vacuum Circuit Breaker be customized for non-standard power grids?
A:Yes, we offer "all-round customization" for the Dead Tank Vacuum Circuit Breaker. While it covers standard 40.5kV to 252kV grades, we can craft seamless-fit solutions for non-standard voltages (such as 46kV, 69kV, or 75kV) and current ratings from 1250A up to 6300A in single, two, or three-phase configurations.
Q:What are the maintenance benefits of using a Dead Tank Vacuum Circuit Breaker ?
A:The RHD series is designed to be virtually maintenance-free. It utilizes an oil-free and gas-free spring-operated mechanism and a vacuum interrupter rated for over 10,000 cycles. Additionally, every Dead Tank Vacuum Circuit Breaker is fully assembled and tested at the factory, so no on-site disassembly or high-voltage testing is required during installation.
Login
