1. A wattmeter, voltmeter and ammeter are arranged in a three-phase fourwire balanced system. Show how they would be connected ready to determine the total circuit power in watts and the PF. Readings...

1. A wattmeter, voltmeter and ammeter are arranged in a three-phase fourwire balanced system. Show how they would be connected ready to determine the total circuit power in watts and the PF. Readings obtained were 2000 W, 240 V and 10 A. Calculate the circuit power in kW and kVA. 2. A small industrial unit has the following loadings measured at the intake position: By means of a scaled phasor diagram determine the value of the neutral current.

May 25, 2022
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