Whenever I have carried out a mag curve I have always been told to drive it into saturation (1A through the secondary), bring it down slowly to 0 then plot various points up to the knee point and carry on all the way up to complete saturation again. The other day I got into a heated discussion...
Hi, Ive read all the posts on open circuit CT's already but they all refer to what happens when primary current is applied to them. My quick question is what happens in a power frequency withstand test, with the secondary open circuit, i.e. 11kV AC applied to primary conductor. Anyone?
