EE 448 Fall 2006 Lab Experiment No. 1 Single Phase AC Circuits

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EE 448 Laboratory Experiment 1
Single Phase AC Circuits
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11. From looking at the table, which set of values will produce a unity power
factor
12. Study your data and determine the capacitance value that gave you the
best power factor (closest to unity). Does this value match what you
predicted in step 3 of part II Why or why not
13. Again study your data and determine why it might be an important goal
to achieve a power factor that is as close to unity as possible.
14. Present the lab results using a spreadsheet computer program and attach
it with your lab report.
1 2
1 2
3
5
3
5
Transformer
8341
4
6
4
6
+
1
+
1
1
+
1
+
Digital
Ammeter
120 V
AC Source
8821
2
3
N
2
3
4
Voltmeter
-
2
-
Vr
R1
+
-
Vl
L1
1 2
+
-
2
300
j300
1 2
A
B
Oscilloscope
3 4
Gnd 1 Gnd 2
Resistor Module – 8311
Inductor Module – 8321
Transformer – 8341
AC Source – 8821
Figure 4
6