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The V3s are water-cooled. So they can carry more amperage with less copper.That's cool!
Can anyone explain to me why the higher-power cables are indicative of the V3 chargers? Wouldn't you want more cable to transfer more power?
The thinner cables used on V3 stations use a liquid cooling system instead of passive, radiative cooling like the V2 cables. That's how they manage to get away with using thinner cables for stations providing higher power. But really the focus on the cables being the distinctive factor is dumb. It's like trying to figure out if an orchard has apple trees or orange trees, and instead of just looking at the fruit that's hanging on the branches, people keep trying to tell which one it is by closely examining the leaves. I mean, you can do it that way, but why bother? The fact that this was a V3 station was definitively and unambiguously known just by looking at the conduit stubs for the supercharger cabinets shown in the picture that ReddyLeaf posted on October 11th (reposted below). The patterns and layouts are quite different between V2 and V3. As are the supercharger cabinets themselves, if they are already on site to see. No need for close comparisons of cable thicknesses unless the stalls are the only thing visible.That's cool!
Can anyone explain to me why the higher-power cables are indicative of the V3 chargers? Wouldn't you want more cable to transfer more power?
To the untrained eye, the cables are the fruit in your analogy while the conduits are the leaves.The thinner cables used on V3 stations use a liquid cooling system instead of passive, radiative cooling like the V2 cables. That's how they manage to get away with using thinner cables for stations providing higher power. But really the focus on the cables being the distinctive factor is dumb. It's like trying to figure out if an orchard has apple trees or orange trees, and instead of just looking at the fruit that's hanging on the branches, people keep trying to tell which one it is by closely examining the leaves. I mean, you can do it that way, but why bother? The fact that this was a V3 station was definitively and unambiguously known just by looking at the conduit stubs for the supercharger cabinets shown in the picture that ReddyLeaf posted on October 11th (reposted below). The patterns and layouts are quite different between V2 and V3. As are the supercharger cabinets themselves, if they are already on site to see. No need for close comparisons of cable thicknesses unless the stalls are the only thing visible.
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The thinner cables used on V3 stations use a liquid cooling system instead of passive, radiative cooling like the V2 cables. That's how they manage to get away with using thinner cables for stations providing higher power. But really the focus on the cables being the distinctive factor is dumb. It's like trying to figure out if an orchard has apple trees or orange trees, and instead of just looking at the fruit that's hanging on the branches, people keep trying to tell which one it is by closely examining the leaves. I mean, you can do it that way, but why bother? The fact that this was a V3 station was definitively and unambiguously known just by looking at the conduit stubs for the supercharger cabinets shown in the picture that ReddyLeaf posted on October 11th (reposted below). The patterns and layouts are quite different between V2 and V3. As are the supercharger cabinets themselves, if they are already on site to see. No need for close comparisons of cable thicknesses unless the stalls are the only thing visible.
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No, it's just that they don't know to look at the fruit or how to distinguish an apple from an orange, not that the leaf examination is actually clearer.To the untrained eye, the cables are the fruit in your analogy while the conduits are the leaves.
The thinner cables used on V3 stations use a liquid cooling system instead of passive, radiative cooling like the V2 cables. That's how they manage to get away with using thinner cables for stations providing higher power. But really the focus on the cables being the distinctive factor is dumb. It's like trying to figure out if an orchard has apple trees or orange trees, and instead of just looking at the fruit that's hanging on the branches, people keep trying to tell which one it is by closely examining the leaves. I mean, you can do it that way, but why bother? The fact that this was a V3 station was definitively and unambiguously known just by looking at the conduit stubs for the supercharger cabinets shown in the picture that ReddyLeaf posted on October 11th (reposted below). The patterns and layouts are quite different between V2 and V3. As are the supercharger cabinets themselves, if they are already on site to see. No need for close comparisons of cable thicknesses unless the stalls are the only thing visible.
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I mean....okay. Yeah, not everyone here is going to be able to "know just by looking at the conduit stubs for the supercharger cabinets shown in the picture." For 99% of us, if there's not the 250kw signage, we're going to look at the cable thickness to figure it out.
Tesla must have assumed that chances are low that eight low SOC vehicles will arrive at the same time. If they do, then it will be transformer limited. Since charging normally ramps down in 10-15 min anyway, they must have done some kind of use cost benefit analysis using the bank teller problem and number of EVs traveling through. But don’t worry, by next Christmas/Thanksgiving will still be waytoo small.Someone forgot to tell the utility that these are 250 kW charging stations. Their 750 kVa transformer will glow when all stalls are charging at max.
Yes, I'm aware that pad mounted transformers can withstand some overloading without significant loss of life, but 750 kVA seems woefully undersized for an 8-stall SC. Are we positive this is a v3 station? Or is it a v3 with v2 infrastructure?
Someone forgot to tell the utility that these are 250 kW charging stations. Their 750 kVa transformer will glow when all stalls are charging at max.
Yes, I'm aware that pad mounted transformers can withstand some overloading without significant loss of life, but 750 kVA seems woefully undersized for an 8-stall SC. Are we positive this is a v3 station? Or is it a v3 with v2 infrastructure?
750 KVA xfrmr can be overloaded for awhile. There is enough load diversity due to SOC, number of vehicles, etc. It's my belief that the locations are made ready for Power Pack later if not immediately.750 kVA would be sufficient if the site also includes battery storage. V3 Superchargers have a DC power bus that ties all of the charging cabinets and battery storage together. A full site for an extended period of time would deplete the batteries, causing the site to throttle to the max AC input, but it would be able to keep up with full loads for normal non-holiday travel. An 8 stall site would normally get a 1,000 kVA transformer, but sometimes you're limited to what the grid has to offer in a particular location.
I found a miss utility dig ticket for installing utility service on behalf of Tesla at the Petro gas station (TA truck stop) right off I-90 out by the airport: ticket # 19295748. Which led me to the active L&I electrical permit for the work showing it would be a "Supercharging Station" with 8 stalls and that inspections of some conduit work had already taken place: 3243261E.
What: New 8 stall supercharger under construction at the Petro Stopping Center near Spokane International airport.
Address: 10506 W Aero Rd, Spokane, WA 99224
GPS: 47.590327, -117.561986
View attachment 452682
@BlueShift @Chuq @MarcoRP
I plan to be there later this afternoon. I’ll let you know what I find out.This site was final inspected by WA L&I on Dec.11. So is any one nearby able to check see if it is live?