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  1. stuckbreaker

    Exceeding Metering Class CT Burden Rating

    I looked through C57.13 and couldn't find much. The datasheet I have doesn't say much - all I really have is the rating and TRF. I agree, but the accuracy rating wouldn't be guaranteed since the current is less than 10% of nominal. I suppose the extreme case would be a burden of 48 Ω and a...
  2. stuckbreaker

    Exceeding Metering Class CT Burden Rating

    Can the accuracy of a metering class CT be treated similarly to a C-rated protection class CT where the rating still holds as long as the voltage produced by the CT does not exceed its rating, or is the rated burden the maximum permissible connected burden? For example, a C800 CT is rated at...

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