I may decide to use a current transformer when I build a spot welder using microwave oven transformers to measure the current. I've seen some current transformers that are 1500:5 or 3000:5 with an inner opening diameter (window) of 2.5 to 3.25 inches respectively. Reading online the insulation outside diameter of AWG 1 is around 0.435" and AWG 3 is around 0.346".
If using AWG1 or AWG3 wire through such a current transformer with an inner diameter of 2.5 - 3.25 inches, will there be any issue with regards to the open space between the wire and the transformer?
If using AWG1 or AWG3 wire through such a current transformer with an inner diameter of 2.5 - 3.25 inches, will there be any issue with regards to the open space between the wire and the transformer?