[Beowulf] UPS system for Linux cluster

Chris Samuel csamuel at vpac.org
Fri May 1 02:04:50 EDT 2009


----- "James P Lux" <james.p.lux at jpl.nasa.gov> wrote:

> The other thing to watch out for on three phase supplies (this has
> been in the electrical code for at least 10 years) is that the neutral
> current on a 3phase Y(star) connection can be very, very high.

Local oddities can also make life interesting, like the
3 phases in the Melbourne CBD being ordered differently
to the rest of the state.

We're located just outside that area so we always ask
sparkies which way they think the phases are going.. ;-)

cheers,
Chris
-- 
Christopher Samuel - (03) 9925 4751 - Systems Manager
 The Victorian Partnership for Advanced Computing
 P.O. Box 201, Carlton South, VIC 3053, Australia
VPAC is a not-for-profit Registered Research Agency
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