RE: [CAD_CAM_EDM_DRO] Transformer wiring (for CNC controller, of course)

Thanks Alan and Mariss!

Carlos Guillermo
VERVE Engineering & Design

-----Original Message-----
From: Alan Marconett KM6VV [mailto:KM6VV@...]
Sent: Friday, February 22, 2002 4:13 PM
To: CAD_CAM_EDM_DRO@yahoogroups.com
Subject: Re: [CAD_CAM_EDM_DRO] Transformer wiring (for CNC
controller, of course)

Hi Carlos,

If you're pretty sure of the 12V winding, try driving it with a
12V
transformer, and then "metering out" the other leads. Group
windings of
similar output, the primaries should be 120, the secondary
windings
should be 86, etc. You have probably already used an ohm meter to
determine pairs of windings.

HTH

Alan KM6VV


Carlos Guillermo wrote:

>
> Hi all -
>
> Can anyone help me figure out the wiring for my transformer? I
> purchased a Banner Magnetics toroidal transformer from Brigar,
> which was rated at 2KVA, 120/240VAC input (50/60 HZ), 86V @ 20A
> center tapped output, with a 12V @ 1A tertiary winding. It
> arrived, and turned out to have 11 leads coming out of it. I
> couldn't find a trace of Banner Magnetics on the web, so I'm
> hoping there's a standard, or a way to figure it out.
>
> These are the leads coming out of it, along with the number of
> conductors spliced to each and the gage:
>
> Red 1 14
> Yellow 2 14
> Red 1 14
> Brown 1 22
> Brown 1 22
> White 1 16
> Blue 2 16
> Purple 1 16
> Grey 1 16
> Green 2 16
> Black 1 16
>
> I can guess that the brown 22 gage wires are probably for the

12V

> winding, and that the center tapped input and output might

require

> 3 or 4 leads each, but I'm still short of 11. Hmmm.
>
> TIA,
>
> Carlos Guillermo
> VERVE Engineering & Design