Module 2 : Current and Voltage Transformers
Lecture 7 : CT Saturation and DC Offset Current
 

Review Questions

1.

What are the factors on which the peak value of DC offset current depends?

2.

How does the DC offset current affect the performance of a CT?

3. Derive the equation for peak value of total flux developed in a CT core.
4. What is meant by core oversizing factor?
5. What are the precautions to be taken while selecting CTs?
   
   
   
   
   
   
   
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