Question: The summer peak load on a 28 / 37.3 / 46.7 MVA, 110-23 kV substation transformer has reached its 54 MVA Summer Normal rating. The

The summer peak load on a 28 / 37.3 / 46.7 MVA, 110-23 kV substation transformer has reached its 54 MVA Summer Normal rating. The power factor of this load is 0.95 lagging. A customer wishes to add 2.0 MW of resistive load to a feeder connected to the substation 23-kV bus. How large a capacitor bank must be also added at the bus to return the transformer loading to its Summer Normal rating? What will be the resultant bus power factor?

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