Phasor Diagram of Current Transformer
CT Transformation Ratio
The Transformation ratio can be calculated by dividing primary current and then dividing by the secondary current .
The can be calculated by using vector addition as we can it is the Phasor sum of the and (No load current).
So is:
So substitution the value of in the equation
So ,from the equation we find that Transformation ratio is not equal to Turns ratio.For Transformation ratio to get equals to turns ratio and must be zero which can be only achieved in the ideal condition.
Phase Angle of Current Transformer
The phase angle of current Transformer is angle between primary current Ip and secondary current
In the given phasor diagram the Phase Angle of Current can be denoted by .Let us Assume a right angle triangle obc.
Current Transformers
In this article, we will discuss what is A current Transformer?, Construction of the Current Transformer, Its Working, Phasor Diagram, Errors in the current Transformer, and Its Types, and At last we will conclude this article With its advantages, disadvantages, Application, and FAQs.
Table of Content
- What is a Current Transformer?
- Construction of the Current Transformer
- Working of Current Transformer
- Phasor Diagram of Current Transformer
- Current Transformer Errors
- Reduction of Errors in Current Transformer
- Types of Current Transformers