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RE: C-Bus and Wire-wound transformers - HELP


  • To: <ukha_d@xxxxxxx>
  • Subject: RE: C-Bus and Wire-wound transformers - HELP
  • From: "Rob Mouser" <rmouser@xxxxxxx>
  • Date: Fri, 22 Aug 2003 09:06:55 +0100
  • Mailing-list: list ukha_d@xxxxxxx; contact ukha_d-owner@xxxxxxx
  • Reply-to: ukha_d@xxxxxxx

Clipsal do have a recommended transformer list. Although I'm uncertain
if they are chosen for noise levels.
I can email the spreadsheet to anyone who requires it.

Many thanks

Rob Mouser


-----Original Message-----
From: Neil Ball [mailto:neilball@xxxxxxx]
Sent: 22 August 2003 09:00
To: ukha_d@xxxxxxx
Subject: RE: [ukha_d] C-Bus and Wire-wound transformers - HELP

The LV transformer issue is a bit of a problem for dimmer manufacturers,
in
fact Lutron sell there own rebranded transformers which they guarantee
won't
buzz with their dimmers to make sure the transformer is a known variable
in
the problem. Even then you can get the lamp filament buzzing as well
which
can be just as bad!

Will Clipsal offer any advice on transformers they have found to be less
problematic?


> -----Original Message-----
> From: Bruno Prior [mailto:bruno@xxxxxxx]
> Sent: Friday, August 15, 2003 10:00
> To: ukha_d@xxxxxxx
> Subject: Re: [ukha_d] C-Bus and Wire-wound transformers - HELP
>
>
> As a follow-up, for everyone's information, it seems that
> Clipsal do not
> recommend transformers above 105VA for use with C-Bus
> dimmers. It looks
> like I will have to rip out my hi-wire lighting and put in a 240V
> system. Apparently there is a 240V hi-wire system just come
> to market,
> although I am a bit suspicious about the H&S implications. May go
for
> 240V track instead.
>
> Just thought it's worth having this on record, for anyone else
> considering C-Bus. The easiest advice would be to stick with 240V
> lighting if you are using C-Bus, as I don't know whether even the
> smaller transformers would make an unacceptable buzz on dim.
>
> To be fair, the system's great for the HV halogens I've got
> in part of
> the house. I think the same problem would occur for other
> systems such
> as Lutron and Polaron. And Clipsal have been pretty helpful
> and open in
> discussing the options. It's just a pity this advice wasn't passed on
> when we put the system together.
>
> Cheers,
>
> Bruno


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