Uninterruptible power supplies
Power range from 50 to 1500 kW
DPA 250 S4 features distributed parallel architecture from ABB (DPA), covers the power range from 50 to 1500 kW and is designed for critical, high-density PC environments such as small to medium-sized data centers, commercial buildings, railroad signaling applications and airports.
A 250 kW cabinet of the 'DPA 250 S4' can accommodate up to six 50 kW modules for a redundant output of 250 kW N+1. Up to six 250 kW frames and up to 30 modules can be connected in parallel to deliver 1500 kW of uninterrupted, pure power. Secure ring bus communication prevents a single point of failure in the system. The device's dual conversion mode provides a fully scalable and easy to maintain UPS and ensures that the power supply to the critical load is purged of mains noise and fluctuations. Transformerless IGBT converters, which feature a three-stage topology with interleaved controls, make the device lighter, more energy efficient and reduce cooling requirements. The UPS delivers a module efficiency of 97.6%.
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