With AirPlus™ technology, Enel and ABB are building a greener future together
Ring Main Unit (RMU) with SF6-free load break switch
Italy
Challenge
The challenge was aimed at finding alternative solutions to the use of SF6 gas as an insulating and/or interrupting medium within MV and HV equipment.
Solution
ABB collaborated with Enel to embed the innovative switch into a complete RMU solution.
Outcome
ABB has developed an load break switch (LBS) based on puffer interruption technology that is optimized for SF6-alternative gases. This new LBS paves the way for the next generation of eco-efficient RMUs, which offer the same compact dimensions in an easily operated and cost-effective design.