Increasing energy efficiency with modular HP three-phase
power distribution
technology brief
Abstract.............................................................................................................................................. 2
Introduction......................................................................................................................................... 2
Power distribution in data centers ...................................................................................................... 2
Concerns and trends in designing power infrastructures........................................................................ 3
Why three-phase power? .................................................................................................................. 4
Three-phase UPS technology ................................................................................................................. 5
UPS load considerations ................................................................................................................... 5
UPS topologies: single-conversion versus double-conversion .................................................................. 6
HP solution: high-efficiency three-phase UPSs....................................................................................... 7
Three-phase power distribution technology ............................................................................................. 8
Load balancing and monitoring ......................................................................................................... 8
Cable reduction ............................................................................................................................... 9
HP solutions: PDR and pre-configured distribution cables .................................................................... 10
Configuration examples...................................................................................................................... 11
High-density system using conventional cooling ................................................................................. 11
High-density system using chilled-water cooling ................................................................................. 12
Conclusion........................................................................................................................................ 13
For more information.......................................................................................................................... 14
Call to action .................................................................................................................................... 14
