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I've installed the TED 5000 meter on my 14-50 outlet in my garage. Last night was my first night of charging. Here's the graph of the power draw (in blue) and voltage (in red). I was pulling 40A.
I've installed the TED 5000 meter on my 14-50 outlet in my garage. Last night was my first night of charging. Here's the graph of the power draw (in blue) and voltage (in red). I was pulling 40A.
I emailed them and they said they had limited supply available currently. Website still says coming soon because they can't deliver in volume.I didn't think it was out yet though! How'd you get your hands on it, and would you recommend it for monitoring the energy use of roadster charging?
Yes. Yes I am.I assume you were using a signature edition RFMC? :wink:
HI guys this is my first post ever I did hear Elon Musk mention putting Quickchargers for trial purpose late this year or early 2010, charging cars in 45 minutes. Was it meant for the Tesla Roadster or the Tesla Model S? It seems funny if it's for the Model S, because of its release in 2011.
Does anyone know anything about this?
Thanks / Nick
Question: Why is a high-power DC connection necessary for fast charge?
I certainly don't know all the details... But I think the pack has a nominal voltage of 375V so something a little more (e.g.: 400V) may be appropriate as direct input to charge it. If you started with 480V then it might be too much.
So my point is that directly rectified line voltage is probably not the exact DC voltage you want for charging, so I envision that some sort of large transformer or inductor based circuit is needed to get the voltage correct.
I bet it is rather specific actually. For instance, if you are supposed to give the pack 390V, then 400V would be too much. Maybe some new PEM could accept a range of DC voltages for quick charging? I don't know. I just suspect that it would be better all around if the offboard quick charging equipment provided a very standardized DC voltage.
It might even be more complicated than that. It might want different voltages depending on what part of the charge cycle the vehicle is in at any given time.
120v and 240v outlets are an existing infrastructure. It makes sense to put the pieces into the car so you can plug into them with as simple an adapter as possible.
Theoretical outlets of any other voltage do not exist anywhere, since they will be completely new, it doesnt make sense to burden the car with anything necessary to charge from them.
Rich
TEG said:I bet it is rather specific actually. For instance, if you are supposed to give the pack 390V, then 400V would be too much. Maybe some new PEM could accept a range of DC voltages for quick charging? I don't know. I just suspect that it would be better all around if the offboard quick charging equipment provided a very standardized DC voltage.
That would be my guess.I am confused by the yellow star and the "(comes standard)" notation on the NEMA 14-50. Does that mean what the picture implies ... is not really what's being delivered for $1,500 ? (All those other useful adapters being extra cost items ?)