Viewing a single comment thread. View all comments

PoopCrayon70-1 t1_iu1pcyh wrote

Reply to comment by rcmaehl in The inside of an Electric Vehicle Charger. by rcmaehl

Common misconception but good question. It can be single phase or 3 phase depending on the supply voltage. That is achieved through a transformer.

These types of applications involve an inverter that will convert ac to DC.

I don't know much about DC but this application screams DC

1

Gaff1515 t1_iu27s78 wrote

That is a dc fast charger and almost certainly has 3 phase ac coming into. Output is likely 150 or 350kw dc

3

PoopCrayon70-1 t1_iu30tvv wrote

Almost certainly? So in your expert opinion: is is 120/208, 120/240, 277/480¿

One of these answers makes it a trick question...

0

Gaff1515 t1_iu3xed5 wrote

Actually none of those answers makes it a trick question. All three of you choices can be three phase. Maybe you’re not the expert you think you are on AC. (120/240 can be 3 phase with a high b leg, very uncommon but still exists in Chicago area).

0