[rescue] DC Voltage distro (Was:SGI Challenge L... )

Ethan O'Toole ethan at 757tech.net
Wed Sep 22 15:16:33 CDT 2004


> 100A @ 3ph is like 3 separate 1ph feeds at 100A, so treat it as 300A.
> Usually plenty big enough.

UPS is 100 amps x 3 phases, the argon laser is 30 amps 3 phases, the HVAC
is 60 amps 1 phase 220 for one unit, 50 amps 1 phase 220 for the other
unit.

Just have the UPS setup with 60 amps / 3 phase feed and the rest for
lights/hvac. .... SquareD powerlogic monitor to check current draw. It is
pretty neat. Still need to move the rest of the computers over onto the
large UPS and turn down all of the smaller ones. Will probably happen this
weekend. Fun fun fun.

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