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I also feel this is low, too low. I just want to ensure the theory I have used is correct. I feel that in a short circuit scenario the CT would saturate before the PD could clear the fault.

Agreed, but yes all around the 7v mark. I plotted a mag curve and one saturates a little closer to 8v, I think these are 5p5 CT's

Hiya, I'm new here so forgive me if I've not posted in the correct area etc... My Question/Scenario: If I have a 4 CT system providing REF protection of a Generating Set, zoned protection looking back at the alternator zone. CT's are 1000/5 ratio, magnetization curves show that the Vkp of...