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Topic Title: PSU or transfomer?
Topic Summary: I have a gap in my knowledge
Created On: 01 October 2017 01:16 PM
Status: Read Only
Linear : Threading : Single : Branch
 PSU or transfomer?   - Zs - 01 October 2017 01:16 PM  
 PSU or transfomer?   - broadgage - 01 October 2017 01:53 PM  
 PSU or transfomer?   - leckie - 01 October 2017 01:54 PM  
 PSU or transfomer?   - Phoenix151 - 01 October 2017 02:20 PM  
 PSU or transfomer?   - leckie - 01 October 2017 02:24 PM  
 PSU or transfomer?   - kellyselectric - 01 October 2017 04:09 PM  
 PSU or transfomer?   - dp11 - 01 October 2017 04:46 PM  
 PSU or transfomer?   - kellyselectric - 01 October 2017 06:47 PM  
 PSU or transfomer?   - AncientMariner - 01 October 2017 06:50 PM  
 PSU or transfomer?   - SKElectrical - 01 October 2017 09:33 PM  
 PSU or transfomer?   - mapj1 - 01 October 2017 10:28 PM  
 PSU or transfomer?   - KFH - 02 October 2017 03:58 PM  
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 01 October 2017 01:16 PM
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Zs

Posts: 3830
Joined: 20 July 2006

Hello,

I did a drawing a couple of weeks' back where the 230 V was transformed to 24V at the upstream of the control panel. the sketch was done by someone else and had a transformer on it.

Sam and Dave came down to look at the panel undergoing replacement and immediately said they'd change that to a PSU (power supply unit). They have now done the work and I am blown away by their knowledge. Fantastic job. Various other changes are noted. I see them as having more up to date knowledge because they work in one of the more modern parts of our environment.

Which makes me want some of their knowledge.

When a transformer and when a PSU? What is going on inside a PSU that is different from a transformer when the requirement is a basic step down?

Zs
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