Voltage Sag due to Induction Motor Starting by Osama Hebala

This model is developped to show the voltage sag due to Induction Motor Starting.

This model is developped to show the voltage sag due to Induction Motor Starting.

Circuit diargam includes 11kv feeder, 11kv/400v transformer, in addtion to an inductor motor and a resistive load which are connected to the same bus (0.4kv bus).

The resistaive load is initially connected and then contactor switch on at t=1 sec to start the induction motor.

Scopes (as shwon in below figure) show the voltage sag effect caused by starting the induction motor at both 11kv bus and 0.4kv bus.

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