X-ray Power Supplies / Analysis Please (fwd)

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---------- Forwarded message ----------
Date: Mon, 27 Sep 2004 12:30:41 -0500
From: Carl Litton <Carl_Litton@xxxxxxxxxx>
To: High Voltage list <hvlist@xxxxxxxxxx>
Subject: X-ray Power Supplies / Analysis Please

Would anyone with a high speed Inet connection (large picture 1meg that
can be expanded up for detailed viewing from 3 angles) be willing to
look at the picture of this power supply and offer observations or
comments about the way it is set up?

Our conceptual difficulty here may be related to the fact that it is
wired for standard 2-wire single split-phase 220 VAC where both wires
are hot but in opposite alternation.  And we have never seen a
transformer, large or small, that was wired for anything but 120 VAC
where there is a single sine wave and one wire neutral (return).

The main transformer appears to be split into 2 distinct primary coils
on opposite sides of the torus and each of those appear to have 2
secondary coils with primary windings deep and secondary windings
superficial (shell style).  (4) wires going in from the primary inputs -
2 from one side of the phase energizing one end of each primary coil and
2 the other side of the phase energizing the opposite ends of the
primary coils.    There are (4) 20kV rated wires coming out of the
secondaries going to the rectifier arrays ***that is 1 wire from each of
the 4 secondary windings*** and this is where I begin to get  kornfused
- there should be 2 wires from a secondary.

Help please.  Is this 2 separate power transformers operating
independently?

Thanks,

Carl

Carl Litton
Hilton Hotels Corporation
901-374-5747