problem 4 10 find the td of relays b such that these relays operate 03
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Question
Problem 4 (10%), Find the TD of relays (B) such that these relays operate 0.3 seconds after relays (A) for a three-phase fault as indicated in Figure 2. Do the
calculations for two cases: a) considering that relays A have an instantaneous element; and b) without considering instantaneous element. (The relays do not have short-delay definite-time elements.)