Discuss DC transformers in parallel in the UK Electrical Forum area at ElectriciansForums.net

Toma Toma

DIY
Reaction score
0
Hi Guys and Girls,
First off: I am very new to electrical stuff. Right now I'm running my first ever project containing electrical components. So sorry in advance for very wrong terminology and schematics:) please bear with me.

I'm having a Finder Controller (F) to control my "work circuits". Its powered and gets signals with DC current. This part works just fine- I tested it already out. The Finder Controller opens and closes circuits- the way you program it anyway. You can manage two separate circuits with itat the same time. I colored them on my schematics.

All my consumers are exactly the same- identical ampere and powered by DC current. Tho they all have different rhythms. Sometimes none is running, sometimes some of them, sometimes all of them.

Due to space issues and getting the right min/max wattage I decided to plug two identical DC transformers (T) in parallel. This way I can supply a single consumer if needed and can get "additional amperes" if needed. (Anyway that's my idea of how it should work out in the end)

I drew a schematic to help me wire and show you what I intend to do. Of course I could just plug that thing in and see what will happen. But I'm afraid to burn my components. Also I know that there is a lot going on in the cables that I'm not aware of and I see this as a way for me to learn a bit more. So feel free to share some wisdom and thoughts here. It is much appreciated.
Also I don't really mind if I'm not doing it the RIGHT way. As long as I don't create potential dangers I don't mind keeping things simple. So maybe we can try to keep that goalpost.

Kind regards,
Toma
 

Attachments

  • New Document_1.jpg
    185 KB · Views: 12
While some DC PSU are designed to operate in parallel, such as the dual-redundant PSU in high end computer servers, etc, that is not the normal case and so what will happen is not clear:
  • Best case they do some sharing, but it is VERY unlikely they would share evenly without being designed to do so.
  • Next case is one runs, overloads and cuts back so the other takes over, and then the first recovers and the cycle begins again.
  • Worst case is one comes up first band forces current back in to the other causing permanent damage.
TL;DR this is a bad idea unless the PSU manufacturer say otherwise. Get a larger PSU.
 

Reply to DC transformers in parallel in the UK Electrical Forum area at ElectriciansForums.net

Similar Threads

Hi Guys and Girls, First off: I am very new to electrical stuff. Right now I'm running my first ever project containing electrical components. So...
Replies
0
Views
728
Hello right off the bat I'm a novice with a little better understanding than most(father was a electrician) but I am not an electrician. I'm...
Replies
26
Views
1K
I have a baffling problem with a newly-installed PIR floodlight and I'd like advice from the forum as to whether it's defective (and should be...
Replies
5
Views
484
I have been asked/invited to "post more", lol, so let me make another post right away. I thought of sth worthy to post, of interest to many, I...
Replies
1
Views
401
Hi all, Been browsing these forums for a while, always great to learn a new way to skin the same cat. Anyway, cut a long story short, was an...
Replies
11
Views
576

OFFICIAL SPONSORS

Electrical Goods - Electrical Tools - Brand Names Electrician Courses Green Electrical Goods PCB Way Electrical Goods - Electrical Tools - Brand Names Pushfit Wire Connectors Electric Underfloor Heating Electrician Courses
These Official Forum Sponsors May Provide Discounts to Regular Forum Members - If you would like to sponsor us then CLICK HERE and post a thread with who you are, and we'll send you some stats etc

Electrical Forum

Welcome to the Electrical Forum at ElectriciansForums.net. The friendliest electrical forum online. General electrical questions and answers can be found in the electrical forum.
This website was designed, optimised and is hosted by Untold Media. Operating under the name Untold Media since 2001.
Back
Top
AdBlock Detected

We get it, advertisements are annoying!

Sure, ad-blocking software does a great job at blocking ads, but it also blocks useful features of our website. For the best site experience please disable your AdBlocker.

I've Disabled AdBlock