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Discuss Electric car chargers in the Electrical Wiring, Theories and Regulations area at ElectrciansForums.co.uk.

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  1. Bob Geldoff1234
    Offline

    Bob Geldoff1234 Regular EF Member

    I know nothing about electric car chargers so was wondering if anyone can answer my question.

    I see that some of the new service station electric chargers at rated at 150kw.
    How do they wire that up to get so much power to the car? Is the cable supplying the charger underground absolutely massive?Is is 3 phase to even the load?

    I know that a 10.5 kw shower in a domestic would need at least 10mm cable so I cannot get my head around how they supply 10 times that.I would have thought that to get 150kw you would have to go back to the national grid to tap into that sort of power.

    If anyone can enlighten me I would be most appreciated.
     
  2. Zdb
    Offline

    Zdb 0.00000000000000001Ω

    Location:
    UK
    I would imagine that its three phase
     
    • Like Like x 1
  3. DAvid Prosser
    Offline

    DAvid Prosser Electrician's Arms

    Location:
    UK
    The three phase chargers we have installed are 2x11KW (that's two 11KW outlets from one device), I've never seen anything 150 KW. Even at 3 phase that would be 375 A.
     
  4. multimick
    Offline

    multimick Electrician's Arms

    Location:
    ormskirk
    Business Name:
    lathom electrical
    probably a typo and it's 15 KW
     
  5. Zerax
    Offline

    Zerax Regular EF Member

    Location:
    London
    I thought so too... but no, alot of websites talk of 150kW super fast chargers ! I'm intrigued too...
     
  6. Gavin John Hyde
    Offline

    Gavin John Hyde Electrician's Arms

    Location:
    Somerset
    Business Name:
    Sulis Electrical Services Ltd
    a lot of these superchargers take ac and turn it into dc so can get confusing.
    i know the superfast quick charger from ev box uses a 77 amp ac 3 phase supply and can put out 120a dc. thing is too much fast charging at mode4 via these dc fast chargers has been shown to degrade the battery cells. they are getting better but its still early days in the history of car batteries.
    The data sheet is below.
     

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