How many Amp do I need for the transformer
How many Amp do I need for the transformer
(OP)
Greeting to the forum,
I had ask to design the power supplied for a system. I have 480VAC input and 24VDC output transformer for all instruments such as motors, VFDs,E-stop, Photoeye's.....My question is how much Current(Amp) do I need for the transformer to disconnect the system? Any input would appriciated.
I had ask to design the power supplied for a system. I have 480VAC input and 24VDC output transformer for all instruments such as motors, VFDs,E-stop, Photoeye's.....My question is how much Current(Amp) do I need for the transformer to disconnect the system? Any input would appriciated.





RE: How many Amp do I need for the transformer
First. What do you mean by "disconnect the system"?
Second. We cannot guess how many of all these devices you have or what their supply needs are. No, we cannot. Really. Most of us are not that smart.
Third. Once you got all those data collected. Then you also have an answer to your question.
Gunnar Englund
www.gke.org
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100 % recycled posting: Electrons, ideas, finger-tips have been used over and over again...
RE: How many Amp do I need for the transformer
RE: How many Amp do I need for the transformer
Gunnar Englund
www.gke.org
--------------------------------------
100 % recycled posting: Electrons, ideas, finger-tips have been used over and over again...
RE: How many Amp do I need for the transformer
Keith Cress
Flamin Systems, Inc.- http://www.flaminsystems.com
RE: How many Amp do I need for the transformer
In other words: Volts_in*Amps_in = Volts_out*Amps_out.
Rearranging gives: Amps_in = Amps_out*Volts_out/Volts_in
Assuming your output is 24V AC (not DC), once you determine the total current your equipment will draw (Amps_out), multiply that by 24/480 to get the current required to the input side of the transformer. And as Skogsgurra said, add a safety margin.
Rob Steves - Zaber Technologies Inc - http://www.zaber.com
RE: How many Amp do I need for the transformer
Keith Cress
Flamin Systems, Inc.- http://www.flaminsystems.com