Roadster isolation resistance (monitoring system)

marco2228 · Aug 26, 2014

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

tom66 · Aug 26, 2014

marco2228 said:
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

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?

marco2228 · Aug 26, 2014

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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Roadster isolation resistance (monitoring system)

marco2228

... fixing Roadsters

tom66

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marco2228

... fixing Roadsters

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