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The load taken from a 250 V,50 Hz,a.c.supply consists of:(a)a heating load

By December 6, 2021No Comments

The load taken from a 250 V,50 Hz,a.c.supply consists of:(a)a heating loadof3kW;(b)a motor load of8 kVA at0·8 power factor lagging;(c)a load of4kW at 0-6 power factor lagging.Determine the following:a)With an aid of a circuit diagram,shows how are the various loads areconnected.b)Calculate the total load from the supply in kW and kVA and its powerfactor.c)Draw the total load’s power phasor diagram (power triangle)based on(2b).d)What would be the kVAR rating of a capacitor to bring the powerfactor to unity (UPF)and with appropriate diagram show how wouldthe capacitor be connected to the supply?e)Determine the capacitance (in uF)required to achieve unity powerfactor.

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