CT ratio calculator calculator can be used to calculate the current transformer (CT) ratio, primary current, and secondary current based on the known values.
Learn how to use the CT ratio calculator calculator and its working principles
A Current Transformer (CT) is a device that produces a reduced current accurately proportional to the current in the circuit, which is being measured. The CT ratio is the ratio of the primary current to the secondary current and is usually expressed as Primary Current / Secondary Current.
Suppose you have a CT with a primary current of 1000A and a secondary current of 5A. The CT ratio would be:
CT Ratio = 1000A / 5A = 200
This means that the primary current is 200 times larger than the secondary current.