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Supercharger - Wilsonville, OR (LIVE 17 Nov 2023, 8 V4 stalls)
- Thread starter Guacahummus
- Start date
Mrbrock
Active Member
The race is on the see whether this site or Sparks, NV is the first US V4 site turned on. Or even Bakersfield, CA but that would be a distant third odds-wise since there have been no V4 post sightings there.
GhostSkater
Member
If you do take a pic of the labels on the cabinets, this will show us if they are the same as EU which just the stall is V4 and the cabinet is V3 or if indeed it's the first over 250 kW charger installed
They covers are off and clean up was finishing. I would have looked for tap to pay screen but was super short on time. It wasn’t immediately apparent from 30 feet away but the charging handle looked very big
Mrbrock
Active Member
The handle should be the same size. NACS doesn’t vary from V3 to V4. And the supposed internal Magic Dock shouldn’t be apparent from the outside.
I agree, maybe it was just an optical illusion with how big the chargers are. Also there are new protection posts where the transformer is going in and they are cleared the area for its install, however it has not arrived.
supergeek
Member
When Tesla released the NACS spec, the 1000v capable handle was a little bigger. There’s a chance that’s what we’re dealing with.
Yeah, the part that actually gets inserted into the vehicle has to be the same size, but the handle where a person grabs is bigger to account for liquid cooling.
supergeek
Member
Antonius138
Member
I live 3 miles from this site AND I have a drone 
might be worth a field trip...
might be worth a field trip...
Antonius138
Member
Antonius138
Member
I shot some drone footage (surprised I didn’t smack into one of the chargers with the wind today). If it is good footage I will post later
I suggest you also grab: Tent, Sleeping Bag, Coffee, Baileys, Snacks, then you can really keep us posted!I live 3 miles from this site AND I have a drone
RT
Antonius138
Member
It was it 4 miles away instead of 3 would have been a non starter but damn Baileys and coffee sounds pretty good right now
Mrbrock
Active Member
With electricity, it is about amperage. You can up the voltage on the same gauge wire and it still allows the same amperage. V3 already has liquid cooling so it likely has more to do with upping amperage than voltage. Notice the same ampacity applies up to and including 2000V for a given wire size.
You also need thicker insulation for higher voltages, which is what the poster you are replying to said. You’ve provided a table about current carrying capacity which is different.
Mrbrock
Active Member
Because the cables from the cabinets to the posts were increased from 350mcm to 600mcm. This implies more amperage. You do not increase conductor diameter to increase voltage. Yes you would for insulation on higher voltage depending on the wire. It looks like 600V is the common cutoff where insulation thickness increases so it would apply in this case if we were talking about non cooled conductors. Because they are liquid cooled, that would be the increased insulation. In fact, less insulation would make the liquid cooling more efficient. I am sure all three things play a factor here.
The liquid cooled portion is just from the post to the vehicle. And they eliminated the insulation between the coolant and the cable for V4. (immersion cooled cables.)
But to support the eventual 1000v, I believe that they have to use different cable between the charge cabinets and the posts. So a V3 to 1000v V4 wouldn't be a simple upgrade.
At a minimum the NACS connector would have to be the 1000v version, which is easy to see.
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