RE: Quiet Toroidal Transformer

[Gareth Cook <g@xxxxxxxxxx>]

Mike

These Illuma transformers - how quiet are they under dimming load ? Any
worse than a sealed 50w toroidal ?

G.
Gareth Cook
SWG EMEA North Account Manager
IBM SWG - BTE Office - Lotus Park, Staines, TW18 3AG
Office: +44 (0)1784 445166 - Mobile: +44 (0)7980 445166
AIM Chat : TheBoyG - MSN Chat : chat@xxxxxxx
email: g@xxxxxxx



----- Forwarded by Gareth Cook/UK/IBM on 31/05/2005 10:32 -----
Discussion
Main Topic

ukha_d@xxxxxxx
27/05 17:53
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Subject:
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RE: [ukha_d] Quiet Toroidal Transformer
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Category:




If they are like the Ikea then in my experience they are just
transformers

And the windings go open circuit after about 2 weeks

I replace mine with Illuma  electronic Transformers

Mike



________________________________

From: ukha_d@xxxxxxx [mailto:ukha_d@xxxxxxx] On Behalf
Of Gareth Cook
Sent: 27 May 2005 11:05
To: ukha_d@xxxxxxx
Subject: [ukha_d] Quiet Toroidal Transformer



My wife has bought 2 new fancy lights - these are now plumbed into CBUS,

etc. Except - they have their own electronic transformer (they are both
LV
lightings), and if you dim, they buzz like hell. So, my option is to
bypass the internal transformer and use a Toroidal wire-wound unit. One
needs a 100W transformer, the other needs a 200W transformer.

I'd like to reduce the buzz so my best bet is to relocate the
transformer
away, and use appropriate thickness T&E cable, etc. So what I need are
quiet sealed transformers so they can put up into the ceiling void.

Anyone have any units like this they can recommend ? I have loads of the

50W sealed units, but not used any toroidal units bigger than this.

G.

Gareth Cook
SWG EMEA North Account Manager
IBM SWG - BTE Office - Lotus Park, Staines, TW18 3AG
Office: +44 (0)1784 445166 - Mobile: +44 (0)7980 445166
AIM Chat : TheBoyG - MSN Chat : chat@xxxxxxx
email: g@xxxxxxx









________________________________