Q5 A 3-phase, 60 Hz, 500 V, delta connected motor develops mechanical output of 250 H.P.,...

Q5

A 3-phase, 60 Hz, 500 V, delta connected motor develops mechanical output of 250 H.P., the power factor being 0·7 lagging (without capacitors) and motor efficiency 88%. A bank of series capacitors is connected in delta across the supply terminals. Two similar capacitors connected in series exist in each phase. Each of these capacitors is rated at 250 V, 800 µF. What is the new power factor of the motor after connecting the capacitor bank, also find out saving in the KVAR absorbed from power supply after improving power factor?

Figure1(Feeder comes from this side)

Expert Solution

Manojponduru answered 1 year ago

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