Siemens 3AV1 Blue Dead Tank Circuit Breaker
Dead Tank Circuit Breakers 72.5-145 kV
F-gas free product for CO2 neutral grids
Vacuum technology – Game changing technology for F-gas free high-voltage power grids
Siemens Energy recognizes climate change as a challenge that is changing the world. SF6, the insulating gas utilized in most modern gas insulated equipment, boasts a global warming potential of approximately 23,500 times that of CO2.
In a revolutionary development for high-voltage Siemens Energy is going “Blue”. Siemens Energy developed a vacuum technology with clean air insulation that is capable of reliable short-circuit interruption at voltage levels from 72.5-145 kV with zero CO2 emissions over the lifetime of the equipment. This solution provides the best performance addressing the highest environmental standards in place now and ones in the future.
The members of our Blue circuit breaker family meet the same high-quality standards as our SF6 portfolio:
• Reliable making and breaking capabilities
• High-performance and maintenance-free operating mechanism
• Highest availability and length of operation
Moreover, the vacuum technology promotes several features that are superior to traditional circuit breakers:
• 30 full short-circuit current interruptions
• 10,000 rated current interruptions
• Optional 2-cycle current interruption
• Full performance down to -60°C ambient temperature
• Maintenance-free interrupter unit during its lifetime
Instead of SF6 , our new generation of Blue high-voltage breakers use clean air for insulation consisting of 80 percent nitrogen and 20 percent oxygen. This insulation medium can be released into the atmosphere with zero harmful effects to people, environment and no greenhouse gas (GHG) emissions.
Environmental Health and Safety (EHS)
• Nontoxic insulation gas, no toxic decomposition products
• Greenhouse- and F-gas free insulation
• No special safety measures required
Efficiency
• No F-gas regulated – reporting, training, frequent density checks
• Minimized effort for gas handling during operation and end of life (no gas recycling)
Performance
• High number of short-circuit and rated current interruptions
• Two-cycle current interruption
Reliability
• More than 40 years of experience in medium-voltage vacuum switching technology – more than 10 years in high-voltage applications
• Perfect for low-temperature applications without heating systems