Question: Q 5 . ( a ) A 2 2 kV feeder is protected by an IDMT overcurrent relay with IEC standard inverse characteristic. The plug

Q5.
(a) A 22 kV feeder is protected by an IDMT overcurrent relay with IEC standard inverse characteristic. The plug setting (PS) is 5A and time multiplier setting (TMS) is 0.23. Calculate the relay operating time when a current of 10 A and 50 A is injected.
Q 5 . ( a ) A 2 2 kV feeder is protected by an

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