Current Transformer Ratio

Definition: 1) The ratio of primary amps divided by secondary amps. 2) The current ratio provided by the windings of the CT. For example, a CT that is rated to carry 200 Amps in the primary and 5 Amps in the secondary, would have a CT ratio of 200 to 5 or 40:1.

Related Links

Current Transformer Basics and the Current Transformer
[TITLE]
Current transformer – Wikipedia
Current Transformer Basics: Understanding Ratio, Polarity, and Class
Blog – CT Primary & Secondary Turns Explained!
How to Calculate CT Ratio | Sciencing

Related Videos