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Roadster isolation resistance (monitoring system)

Discussion in 'Roadster' started by marco2228, Aug 26, 2014.

  1. marco2228

    marco2228 Roadster Signature #34

    Joined:
    Nov 19, 2010
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    Location:
    Cologne/Bremen , Germany
    Does anyone know what's the typical range of the Roadsters isolation resistance (the resistance between the high voltage system and the cars chassis)?
    The Roadster has a monitoring system that throws an error, if the resistance drops under an threshold value. This value would also be interesting to know.

    I think it should be somewhere around 500 kΩ...

    Thanks,
    Marco
     
  2. tom66

    tom66 Member

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    Are you sure it's a resistance figure, rather than perhaps a measured current imbalance between ESS- and ESS+ connections, indicating a leaky path somewhere?
     
  3. marco2228

    marco2228 Roadster Signature #34

    Joined:
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    Location:
    Cologne/Bremen , Germany
    Yes, I think there are no current sensors, that could measure an error current and even if there is a low resistance between HV and the chassis, there doesn't necessarily have to be a leaky current which can be detected by the ESS.. or am I seeing this wrong?
     

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