Transformer solution

LewisB08 · Mar 17, 2015

Evening everyone!

A site ite that in working on has 11 LED panels powered by PSU's all fed from one lighting circuit, each one has an individual PSU causing the breaker to trip first time but once reset it stays on. Is there a solution to putting them all on one transformer, the power supplies are 240v ac to 15v dc 6000ma.

Thanks in advance

Bobster · Mar 17, 2015

What's the current Zs of this circuit?

What MCB is feeding it?

telectrix · Mar 17, 2015

probably has a B type MCB. change for a C type as long as the Zs readings are low enough.

LewisB08 · Mar 17, 2015

Thanks for the replies.

I have only had a quick look at this circuit so it is untested. It is fed by a C10 MCB.

Thanks

Darkwood · Mar 18, 2015

Divide the panels through a 3gang switch and when switching on heed caution to allowing the first set to strike before switch the next.

Quick simple and cheap and as its a worksite you don't want to be throwing money at it... Or stick it on a plug top and use a socket circuit where the mcb will be rated a lot higher.

Not all solutions have to be complicated.

LewisB08 · Mar 23, 2015

Thanks for the advice. Will need a long term solution though as they have added 11 more. I will probably run a ring with a 32a MCB to it but I don't like the idea of 22 PSU's. Ideally I want a few decent transformers feeding them all, can anyone point me in the right direction?