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AC vs. DC power distribution for data centres (1)

Posted: 13 May 2007     Print Version  Bookmark and Share

Keywords:high voltage AC  power distribution  DC power distribution 

Various types of DC power distribution are examined as alternatives to AC distribution for data centres and network rooms. A detailed analysis and model show that many of the common benefits claimed for DC distribution are unfounded or overstated. The reasons why AC will likely remain the dominant choice for data centre and network room power are explained.

The comparisons done in most other studies do not include the High Voltage AC power distribution option. This paper demonstrates that if high efficiency is a goal, then the High Voltage AC configuration is superior to conventional methods and nearly as good as the highest efficiency high voltage DC system.

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