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problem 1: How do you represent the characteristics of the given relays physically?

a) D. M. T relay.
b) I. D. M. T relay.
c) Very inverse relay.

problem 2: What are the problems faced when O.C relays are used for the protection of E.H.T. lines.

problem 3: Describe the constructional features of induction cup relay?

problem 4: What are amplitude and phase comparators?

problem 5: Describe the procedure for synthesizing directional relay by using phase comparators?

problem 6: What is three stepped distance protection and how it is implemented in long E.H.T. lines.

problem 7: What is internal and external fault and how is relay prevented from responding to external fault.

problem 8: What is percentage bias differential protection and how is it implemented to protect the generators from starter faults?

problem 9: Describe Merz-Prece protection scheme?

problem 10: How is the generator protected from loss of excitation?

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