Determine the time of operation of 5 amp over current relay

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Reference no: EM13293042

Determine the time of operation of a 5 amp. , 3 sec. overcurrent relay having a current setting of 150 percent and a time setting multiplier of 0.8 connected to supply circuit through a 500 /5 current transformer when the circuit carries a fault current of 5000 Amp.(If plug setting multiplier comes to be less then 5 , then time operation is 2.5 second and if plug setting multiplier comes to be less then 5, then time of operation is 3.5 secondes.)

Reference no: EM13293042

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