Re: [CAD_CAM_EDM_DRO] Re: Boss 8 3ph transformer help

I initially thought this is how it was wired, but when I use only the 3
phase wires to the rectifier the transformer just buzzes with 0v from the
rectifier!!!

The rectifier and all its associated wiring are all original so I dont know
what I need to do now. This is hte last part of the conversion and is
proving to be the hardest bit !

----- Original Message -----
From: "user_cnc" <whiteman___@...>
To: <CAD_CAM_EDM_DRO@yahoogroups.com>
Sent: Monday, August 16, 2004 12:27 PM
Subject: [CAD_CAM_EDM_DRO] Re: Boss 8 3ph transformer help


> --- In CAD_CAM_EDM_DRO@yahoogroups.com, Aaron Bott <azzi_b@y...>
> wrote:
> > I have re-fitted my boss 8 controlled series 1 b/p using rutex
> drives and have now sorted out the drives etc and are setified with
> their running at 24v. However I want to run them at about 96-100v.
> The main 3ph isolation transformer has terminals on it marked 0,
> 60,70,80V. there are three of each of these (1 per phase) that link
> to a rectifier secion. Now if I connect the ov line together and
> then use the 60v output I get approx 160V. Now the old drives are
> rated at 100v so the qusetion is this
> >
> > Am I wiring the transformer correctly ??
> >
> > If so then what do I need to do ????
> >
> >
> > ---------------------------------
> > ALL-NEW Yahoo! Messenger - all new features - even more fun!
> >
> > [Non-text portions of this message have been removed]
>
> hi,
>
> i think you wired the thing wrong;its seems you wired the triphase
> transformer in series with the rectifier.(you dont have to use the 0
> volt line also)
>
> try this:
>
> transformer tri in (phase wires) and transformer (tri out)
> connect the transformer out to the bridge rectifier(a tri phase ac
> in/1phase dc out,) measure the dc voltage now (if you use the 60 vac
> out terminal you have a voltage of prox. 85v
>
> - be sure to have the right rectifier;if this not is working post a
> few pictures so that i can help you maybe out(name plate from
> transformer and rectifier +connections)
>
> bye
>
>
>
>
>
>
>
>
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