Over current relays with Very Inverse operation (VI) [IEC 60255] by setting TMS to 0.6 if using CT Ratio 600/5 A and adjusting the current to 100%, the fault current is equal to 4,000 A.
Calculate how much time the relay needs to operate?
A. 1.429 seconds
B. 2.025 seconds
C. 2.382 seconds
D. 3.375 seconds
Show Answer
Answer: A
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