[Milsurplus] 3 Phase Power

[jwatkins]

Hi All,

 

Just found out some interesting things about power supplies.  Bought an EMI
(Lambda) supply that is adjustable from 0 to 30 volts and puts out 165 amps
over the complete range.  Fully adjustable for current/voltage/over current,
etc.  It is a 5Kw unit.  All the 28 volts I will ever need.  PROBLEM at
least I thought it was a problem, it is a 3 phase unit.  I was looking at
making a static converter, a rotary converter, all kinds of converters.
Would have been a fun project.  Finally asked some one that actually works
and repairs these units what to do.  His solution is just hook my 220v to
Phase a and Phase b.  The unit will only put out about 3 Kw, but still lots
more than I need,  This is a switcher, and has 3 bridges that feed into one
line, so I have one bridge that is not used.  I don't think this will work
on units that have a Delta or Wye transformer, but apparently for the EMI /
Lambda switchers it is fine.  Price was $80, I suspect because no one wanted
a 3 phase unit.  Google is a great thing.

 

Cheers,

 

John  WD5ENU/A45XV

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