At SPS Drives 2018, ABB features its uninterruptible power supply (UPS) DPA 250 S4 with its market-leading module efficiency of 97.6 per cent, 30 per cent lower power losses than competitor products, top reliability, zero downtime and low cost of ownership. The DPA 250 S4 features ABB’s decentralised parallel architecture (DPA), covers the power range 50 to 1,500 kW and is specially designed for critical, high-density computing environments such as small to medium sized data centers, commercial buildings, healthcare facilities, railway signaling applications and airports.
One DPA 250 S4 250 kW cabinet can host up to six 50 kW modules for 250 kW N+1 redundant power. Up to six 250 kW frames and up to 30 modules can be paralleled for 1,500 kW of uninterrupted, clean power. Secure ring-bus communication ensures there is no single point of failure in the system. The DPA 250 S4’s dual conversion mode ensures power going to the critical load is cleansed of any grid noise or fluctuations. Its transformer-free IGBT (Insulated Gate Bipolar Transistor) converters, which feature three-level topology with interleaving controls, mean that the device is lighter and more energy efficient, with reduced cooling requirements. The DPA 250 S4 delivers a market-leading module efficiency of 97.6 percent and a system efficiency of 97.4 per cent, setting the standard for the future of UPS evolution.
