Hi all

A quick question. If the phase current on a 6 phase system is 380A rms what is the the DC current?

 

RMS is a way of stating AC currents in equivalence with a DC current

An AC RMS current of any amperage has the same POWER as the same DC voltage at that current.

 

Maybe I stated the question in a wrong way. I have a 6 phase inverter with a phase current of 380A rms of 537A peak if you prefer. I am wondering how to calculate the current on the DC side of the inverter

 

And how does this relate to automotive?

 

And how does this relate to automotive?

Answering the question will help the calculation?

 

Sounds like homework to me.

 

Knowing the percent efficiency of the inverter will tell you the output power if input power is known.
Ex: 90% efficiency with 1000 watts input power gives 900 watts output power.

 

What is the voltage and the current of the output? What is the input voltage?

Why not post the whole question as you received it?

 

What is the voltage and the current of the output? What is the input voltage?

Why not post the whole question as you received it?

Is attitude part of the forum or the answer? No mate it's not homework. The DC voltage is 48 volts and the AC voltage is 38 Volts

 

Is attitude part of the forum or the answer?

Only when the question comes across as vague and questionable plus possibly not in the most appropriate section of the forum.

 

So, I understand you have six phases, each at 38v and 380 amperes.

You want to know the input DC current from a 48 volt source.

Correct?