Experiment_5_Three-Phase_Watt

# Experiment_5_Three-P - Experiment 5 Three-Phase Watts VARs and Volt-Amperes OBJECTIVE To determine the apparent active and reactive power in

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1 Experiment 5 Three-Phase Watts, VARs, and Volt-Amperes OBJECTIVE To determine the apparent, active and reactive power in three-phase circuits. To calculate the power factor in three-phase circuits. DISCUSSION In Experiment 4, you calculated active power in three-phase circuits. You will now learn that reactive power (either capacitive or inductive) can also be calculated in a similar manner. It therefore follows that apparent power and power factor can also be calculated for balanced three- phase circuits. EQUIPMENT REQUIRED Workstation AC power supply, AC Voltmeter, AC Ammeter, Resistance Module, Inductance Module PROCEDURE CAUTION! High voltages are present in this Experiment. Do not make or modify any banana jack connections with the power on unless otherwise specified! The grading in this section is 0.5 point for each correct answer. 1. a. Using your Inductive load, Power Supply, AC Ammeter, and AC Voltmeter, connect the WYE circuit shown in Figure 5-1. Use a separate inductance section for each of the Loads L 1 , L 2 , and L 3 . Do not connect the neutral of the inductance module to the neutral of the power supply.

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## This note was uploaded on 02/11/2012 for the course EEE 360 taught by Professor Gorur during the Spring '08 term at ASU.

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Experiment_5_Three-P - Experiment 5 Three-Phase Watts VARs and Volt-Amperes OBJECTIVE To determine the apparent active and reactive power in

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