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Transport Evolved

Discussion in 'Electric Vehicles' started by mpt, Nov 27, 2010.

  1. mpt

    mpt Electrics are back

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    #1 mpt, Nov 27, 2010
    Last edited by a moderator: Mar 13, 2016
    Check out TMC's Kevin Sharpe and I on this weeks Transport Evolved hosted by Nikki Gordon-Bloomfield (aminorjourney).

    Kevin outlines his charity to bring charging stations to the UK and I have a rant about MPG.

     
  2. JRP3

    JRP3 Hyperactive Member

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    Not sure about the comment regarding 3 phase to get 240 volt. Almost all homes and businesses have 240V available.
     
  3. mpt

    mpt Electrics are back

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    Indeed, seems that each Chargepoint instal that I read about or use brings a 3-phase to deliver [email protected] plus [email protected]; not clear why though, why not just bring [email protected]? Perhaps it's because businesses get 3-phase but homes don't?
     
  4. TEG

    TEG TMC Moderator

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    #4 TEG, Nov 27, 2010
    Last edited: Nov 27, 2010
    Yes, that is basically the reason in the US.

    Occasionally you do find a smaller business with 240V, but 208V from 3-phase seems more common at industrial locations.

    [FONT=Verdana, Arial, Geneva]Nominal supply voltage for these sites: 208V[/FONT]
    http://www.evchargernews.com/regions/90240_1.htm Office Max / Home Depot Downey
    http://www.evchargernews.com/regions/91007_1.htm LA Arboretum
    http://www.evchargernews.com/regions/92691_1.htm Mission Hospital
    http://www.evchargernews.com/regions/92802_3.htm Disneyland Hotel
    http://www.evchargernews.com/regions/92821_1.htm Brea Downtown Parking
    http://www.evchargernews.com/regions/92832_1.htm Costco Fullerton
    http://www.evchargernews.com/regions/92821_2.htm Brea Civic Center
    http://www.evchargernews.com/regions/93401_3.htm Marsh St Parking, San Luis Obispo
    http://www.evchargernews.com/regions/94025_1.htm Sun Microsystems Usability Labs
    http://www.evchargernews.com/regions/94133_1.htm Hyatt Fisherman's Wharf
    http://www.evchargernews.com/regions/94534_1.htm Solano Community College
    http://www.evchargernews.com/regions/95616_2.htm Davis, 4th and G Plaza (Tesla)
    http://www.evchargernews.com/regions/95620_2.htm Pitt School Road at I-80 (Tesla)
    http://www.evchargernews.com/regions/95621_1.htm Citrus Heights City Hall
    http://www.evchargernews.com/regions/95678_5.htm Costco Roseville
    http://www.evchargernews.com/regions/95690_1.htm Walnut Grove Library
    http://www.evchargernews.com/regions/95814_19.htm Sacramento City Public Garage
    http://www.evchargernews.com/regions/95837_2.htm Sacramento Airport - Daily B
    http://www.evchargernews.com/regions/95837_12.htm Sacramento Airport - Terminal A
    http://www.evchargernews.com/regions/96097_1.htm Comfort Inn Yreka (Tesla)
     
  5. mpt

    mpt Electrics are back

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    Good to know, thanks.
     
  6. Bud

    Bud Member

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    #6 Bud, Nov 28, 2010
    Last edited: Dec 12, 2010
    Hi, guys
     
  7. mpt

    mpt Electrics are back

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    It was a chap by the name of Nikola Tesla, you may have heard of him :)

    He figured out that with the right layout these confounded generators & motors could be made much more efficient and easier to connect over long distances. Not everyone agreed at the time but it seems that he may have been right after all: http://en.wikipedia.org/wiki/Three-phase_electric_power

    Thing is, he also predicted that we would be able to supply the entire world with power, wirelessly, from giant antennas... which seems mad... or it did...
     
  8. Bud

    Bud Member

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    #8 Bud, Nov 28, 2010
    Last edited: Dec 12, 2010
    Hi, guys
     
  9. JRP3

    JRP3 Hyperactive Member

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    You mean other than that the Roadster uses a 3 phase AC induction motor?
     
  10. mpt

    mpt Electrics are back

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    3-phase power is used in the roadster to drive the motor. Back to your original question; 3-phase is the native form of power that's delivered from the power stations to the grid. It's the standard used throughout the world, at different voltages and frequencies.

    The roadster charges on single phase AC, stores it in the battery as DC and turns it into 3-phase to drive the motor.

    You can obtain a single phase feed for the roadster from a 3-phase supply and, as that's more than likely found in business (per Teg) that's why we find ourselves charging from 3-phase.

    At the end of the day, we need DC in the batteries of Mr. Tesla's namesake car yet it was he who pioneered 3-phase for generation. All the debate about which is best, 3-phase charging or DC charging is more about where you put the 3-phase to DC rectifier than any technical merit between the two electrical standards.
     
  11. mpt

    mpt Electrics are back

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    #11 mpt, Dec 4, 2010
    Last edited by a moderator: Mar 13, 2016


    Latest episode of Transport Evolved

    Lots of non-sense about super capacitors and the car of the year awards.
     
  12. Kevin Sharpe

    Kevin Sharpe Active Member

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    #12 Kevin Sharpe, Dec 7, 2010
    Last edited by a moderator: Dec 11, 2010
  13. mpt

    mpt Electrics are back

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    #13 mpt, Dec 11, 2010
    Last edited by a moderator: Mar 13, 2016
    Transport Evolved 28


    This week; No Tax credit for Hyundai; Wheego Whip - Really? Hertz EV rental and an update on Coda.
     
  14. JRP3

    JRP3 Hyperactive Member

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  15. Eberhard

    Eberhard #421 Model S #S32

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    in europe/germany any home has 3 phases
     
  16. mpt

    mpt Electrics are back

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    #16 mpt, Dec 19, 2010
    Last edited by a moderator: Mar 13, 2016
    Transport Evolved 29


    Fisker porn, Sexy superbikes and a $225,000 Volt
     
  17. AndrewBissell

    AndrewBissell Member

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    I have to say that I have largely stopped listening to/watching Transport Evolved. Why? Because the feed via iTunes is always corrupted in my experience. Typically 5-20 minutes into the show it jumps back and starts again at the beginning. This can happen up to a half dozen times (requiring fast forwarding over tens of minutes of material each time it does). This gets wearing. Listening in the car it gets potentially dangerous.

    With the video feed via iTunes (rarely used by me) I see the video and audio get stuck at some frame and then never restart.

    I have reported all of this to Nikki via [email protected], but never got an acknowledgement or saw any improvement.

    I thought mentioning it here might raise the priority. I really appreciate the hard work Nikki puts into originating content. It's a real shame to see the hard work spoiled by some glitch, bug, or fault whether in the production process or on iTunes.
     
  18. mpt

    mpt Electrics are back

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    Thanks Andrew, I'll take a look and talk to Nikki. I usually watch the YouTube version so haven't seen the problem.
     
  19. AndrewBissell

    AndrewBissell Member

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    Thanks Michael that would be great.
     
  20. mpt

    mpt Electrics are back

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    #20 mpt, Dec 29, 2010
    Last edited by a moderator: Mar 13, 2016
    Transport Evolved 30



    The life changer - Join Nikki Gordon-Bloomfield with guests Mike Boxwell and Marc Geller as they discuss the week's news in the world of electric and alternative-fueled vehicles.
     

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