But why 80 and not the full 100?
Brain slippage here. The breaker is 100 amps but only 80 amps can be used because it's a sustained load. Sorry about that.
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But why 80 and not the full 100?
That's wrong. A 100A circuit needs a 100A breaker and can only be used for 80A sustained load.
If there is an 80A breaker it's an 80A circuit (even with a big enough wire for more) and can only be used for 64A sustained.
Klaus is correct. It is a continuous use circuit and must be derated. The circuit and wire needs to be 100A. Please get it corrected ASAP. I really don't want to see another garage burn down and have it blamed on Tesla.
My electrician installed the HPWC with a 100 amp breaker but then limited the operation as if there were a 90 amp breaker, i.e. 72 amps continuous instead of 80. He said that he'd had to replace a few HPWCs that operated at the full 100/80 but none that he'd set at 90/72.
Anyone with similar or relevant experience?
But why 80 and not the full 100?
My electrician installed the HPWC with a 100 amp breaker but then limited the operation as if there were a 90 amp breaker, i.e. 72 amps continuous instead of 80. He said that he'd had to replace a few HPWCs that operated at the full 100/80 but none that he'd set at 90/72.
Anyone with similar or relevant experience?
My electrician installed the HPWC with a 100 amp breaker but then limited the operation as if there were a 90 amp breaker, i.e. 72 amps continuous instead of 80. He said that he'd had to replace a few HPWCs that operated at the full 100/80 but none that he'd set at 90/72.
Anyone with similar or relevant experience?
Does anyone know if the HPWC also has a 'taper effect' similar to the Superchargers? I'm planning a weekend trip where I'll need to stop at an 80A HPWC to top up to full (to go from ~185mi SOC to ~265mi) and am trying to determine how long it will take.
THanks!
Does anyone know if the HPWC also has a 'taper effect' similar to the Superchargers? I'm planning a weekend trip where I'll need to stop at an 80A HPWC to top up to full (to go from ~185mi SOC to ~265mi) and am trying to determine how long it will take.
THanks!
Yes there is some taper, but it is slightly more towards the end of the charge cycle. Expect the last ~15% to take 30-40 minutes
Ask and you shall receive.
Here's the taper curve. At the left side of the graph my SOC is 95% / 253.0 miles range right at 11:00. The taper starts at 98% SOC, 258.0 miles range, at 11:05. The car reports full range and 100% SOC / 265.1 miles at 11:16, when power is listed at 33A. The rest of the taper is all pack balancing, for a good 30+ minutes and is still going here at 11:50 (not shown because it didn't really show much more than a continued gradual downslope on the current).
I believe my range is accurate because I took a trip the other day that went from pack full down to 7 miles and recharged all the way again.
Based on this, I conclude that you may want to stop just at the point where the taper begins if you're looking to maximize your time on the road and you have the range to get where you're going. The difference between the taper start and taper end is only 7 miles range on my car.
Thanks FlasherZ. Great graphs. So the last 7 miles took about 11 minutes which means it only adds about 4-5 minutes at the very end of the charge as I expected.
BTW - how did you generate these graphs? Did you export data from VisibleTesla somehow to generate?
I use the node.js-based TeslaMS suite w/ a MongoDB back end. Two elements - the streaming daemon collects information from the car and pushes it into the MongoDB; then the visualization daemon runs a web server to which you can connect and see the energy consumption, the trip path / map, and the summary of energy usage over time.
TeslaMS tools for telemetry data visualization
hjespers/teslams · GitHub
Does anyone know if the HPWC also has a 'taper effect' similar to the Superchargers? I'm planning a weekend trip where I'll need to stop at an 80A HPWC to top up to full (to go from ~185mi SOC to ~265mi) and am trying to determine how long it will take.
THanks!
Ask and you shall receive.
Here's the taper curve. At the left side of the graph my SOC is 95% / 253.0 miles range right at 11:00. The taper starts at 98% SOC, 258.0 miles range, at 11:05. The car reports full range and 100% SOC / 265.1 miles at 11:16, when power is listed at 33A. The rest of the taper is all pack balancing, for a good 30+ minutes and is still going here at 11:50 (not shown because it didn't really show much more than a continued gradual downslope on the current).
I believe my range is accurate because I took a trip the other day that went from pack full down to 7 miles and recharged all the way again.
Based on this, I conclude that you may want to stop just at the point where the taper begins if you're looking to maximize your time on the road and you have the range to get where you're going. The difference between the taper start and taper end is only 7 miles range on my car.
Ask and you shall receive.
Here's the taper curve. At the left side of the graph my SOC is 95% / 253.0 miles range right at 11:00. The taper starts at 98% SOC, 258.0 miles range, at 11:05. The car reports full range and 100% SOC / 265.1 miles at 11:16, when power is listed at 33A. The rest of the taper is all pack balancing, for a good 30+ minutes and is still going here at 11:50 (not shown because it didn't really show much more than a continued gradual downslope on the current).
I believe my range is accurate because I took a trip the other day that went from pack full down to 7 miles and recharged all the way again.
Based on this, I conclude that you may want to stop just at the point where the taper begins if you're looking to maximize your time on the road and you have the range to get where you're going. The difference between the taper start and taper end is only 7 miles range on my car.
Here's the graph: