How does a CT measure current without losing performance at high frequencies?

[The Hath]

I am using a Triad Magnetics CST206-3T Current Sensing Tranformer. How does it work? I need to find a resistor to measure the current, while getting the highest possible gain, and without losing performance at high frequencies.

My question is how does the CT measure current?

 

[Averagesupernova]

First of all, be very careful with current transformers. When the secondary winding is left open VERY high voltages can develop between the leads. Don't you have a data sheet for it? Usually current transformers work just like voltage transformers concerning turns ratio. A fixed resistor placed across the secondary will develop a voltage that is representative of the primary current. What size resistor to use should be determined from a data sheet.

 

[The Hath]

I am not sure. You can view the data sheet on http://www.triadmagnetics.com/subcategory/shcst.html.