Hi there,

I have some transformator here, and I wish to use it, my question is that how many ampers can pull from it?

Thank you for your answer!

Kind regards

 

hi beic,
Is this link helpful.
https://xtronic.org/download/calculator/transformer-calculator/

E

 

hi beic,
Is this link helpful.
https://xtronic.org/download/calculator/transformer-calculator/

E

Yes, I really would like to use it, but can't install it on the Windows 7 64-bit system!

 

Is it possible that it's giving me 5 Amps at 220V / 24V?
Is my calculation right from the transformer above?

 

hi,
In my experience I would say 3 Amps would be a safe continuous working current at 24V, that would make the transformer approx 100VA.
Is it possible that you could run a test on the transformer, monitoring the current, voltage and operating temperature.??
E

 

hi,
In my experience I would say 3 Amps would be a safe continuous working current at 24V, that would make the transformer approx 100VA.
Is it possible that you could run a test on the transformer, monitoring the current, voltage and operating temperature.??
E

Thank you for your quick answer,

I need just to be shoure that it's rated (can handle) max 3 Amps (I would not use more than 1-3 Amps tops anyway).

I want to use it with this DYI 0-30V 2mA-3A Adjustable DC Regulated Power Supply Module

 

hi,
If it is 24Vrms, I would expect a maximum Vout of 24Vdc at 3Amps, it looks like a linear PSU, I do not see any inductors.?

Do you have a datasheet or link for the PCB.?

E

 

Yes, I have, I already have this module.

 

hi b,
Read that OK.
It is a linear supply.
As the heat sink is 'small' I would ensure you follow the 'Precautions note' printed in that datalink regarding over heating the regulator.
Let us know how it works when you have built/tested the project.
If you have a 3 wire mains supply, L, N and Earth, I would connect the transformer frame to the Earth wire.
E

 

Okay then, yes, that power transistor Q4 - D1047 will be on big heatsink, and yes I have 3 wire mains supply, so I will do like you proposed!

Thank you again for your support!

Kind regards,
Viktor