Module 2 : Current and Voltage Transformers
Lecture 5 : Introduction to CT
  Review Questions
1. What are the functions of a CT?
2. Derive equivalent circuit of a CT.
3. What are the consequences of CT saturation on large AC current? How can it be avoided?
4. What are the differences between:
  (a) Measurement CTs and Protection CTs.
  (b) Class T CTs and class C CTs.
5. By mistake someone has interchanged the terminals of measurement CT and protection CT. Both CT are at the same
  place and having same current ratings. What will happen in normal condition and abnormal condition?
   
   
   
   
1
8