The Radial System distribution system, as shown, requires both relays have an Extremely Inverse (EI) function [IEC 60255] if the relay is adjusted as specified in the figure, Discrimination Between the relays at Bus A and the relay at Bus B using Grading Margin = 0.35 seconds, how much is the TMS of the relay B at Bus B
A. Relay at Bus B, set TMS = 0.06
B. Relay at Bus B, set TMS = 0.433
C. Relay at Bus B, set TMS = 0.35
D. Relay at Bus B, set TMS = 0.19
Show Answer
Answer: A
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