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Is this formula correct?? calculating knee point voltage Vkp Vkp = {2 x Ift (Rct+Rw)}/ k Vkp = required CT knee point voltage Ift = max transformer through fault in ampere Rct = CT secondary winding resistance in ohms Rw = loop impedance of pilot wire between CT and the K = CT...

Hello every one! Am lookin for the exact formula for CT knee point. If any one come up with answer, it'll be helpful. :)

I came across this question by a friend. He was questioned in an interview. 2 CT's one with 100/1 A another with 100/5 A turns ratio are there. Which will go into saturation soon? Is there any thing to do with TURNS RATIO? Any answer will be highly appreciated!

hello people.... I am an assistant engineer in TESTING AND COMISSIONING. I have tested REF relay and the full scheme in HIGH IMPEDANCE method. I heard that there are some other methods too for REF scheme testing. The method which i use to check is like FOR STABILITY i used...