Re: [CAD_CAM_EDM_DRO] 3 phase power supply

Carlos Guillermo wrote:

> List -
>
> I have an unregulated power supply rated for 3-phase 113V (max.) input and
> 160VDC, 60A output. I can't find the exact datasheet, but similar PS's
> datasheets give instructions for hooking it up to 1-phase inputs. Would
> this be safe to try, and if so, what voltage output would I get? If this
> helps, it has a large brick-type rectifier with 5 terminals.

If you derate the current capability, it should work OK. It will have more
voltage ripple, and the current drawn on the two AC input wires will be higher
that for the same load on 3 Phase power, but it should work. With 120 V
AC (RMS) input, you would get about 170 V peak. If you connect the
AC line to two of the rectifier input terminals, the output is not isolated from
the line.

Jon