structural:expansion, structural:summarization
Carbon dioxide (CO) high-voltage

In 2012, ABB presented a 75 kV high-voltage breaker that uses carbon dioxide as the medium to extinguish the arc. The carbon dioxide breaker works on the same principles as an SF breaker and can also be produced as a disconnecting circuit breaker. By switching from SF to CO, it is possible to reduce the CO emissions by 10 tons during the product's life cycle.