Module 1 : Fundamentals of Power System Protection
Lecture 3 : Protection Paradigms - System Protection
  Review Questions
1. Describe various system protection relays in use.
2. What are the functions of an underfrequency relay?
3. Explain the functioning of reverse power flow relay.
4. How transmission lines are protected against lightning?
5. Explain the functioning of ZnO varistor.
   
   
   
   
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