Overcurrent Relay, connected to circuit through the current transformer (CT) with ratio ___

Overcurrent Relay, connected to circuit through the current transformer (CT) with Ratio of 1000/5 A, set to run at 125%.

If the Fault Current is 15,000 A, find the PSM value.

A. PSM = 20
B. PSM = 15
C. PSM = 12
D. PSM = 10

Show Answer

Answer: C

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