Parasitic circuits described in "IEEE C57.13.1-2006, clause: 16.3 Inter-core coupling check" is not my concern. My question is reagrding to air-gap CT situation, since the air gap reduces the magnetic permeability of the flux path of the core, and the leakage flux increases accordingly. The...
thread238-283362 talked about CT inter-core coupling which is special issue in IEEE C57.13.1-2006 clause 16.3, and Mr. lindsayspeters (Electrical) at 7 Nov 10 21:33 had replying: This problem may be due to the core problem because of the air-gap. There is some leakage at the gap. The leakage...
