3rd Harmonic Filters
Actual Performance


Input Current: 4- Personal Computers with No Filter
Two Graphs
Circuit H % H % THD thru the 31st
Total 5.9 Amps rms 3 59.2 19 2.1 % THD 82.8
Fund 4.5 Amps rms 5 46.7 21 2.4
Har 3.7 Amps rms 7 29.3 23 2.1 % Odd 82.8
  9 14.5 25 0.8 % Even 2.5
11 4.0 27 0.7 % Triplen 61.2
13 4.6 29 0.6
15 5.5 31 0.6 K factor 10.7
17 4.2
Input Current: 4- Personal Computers with 5PHF Filter
Two Graphs
Circuit H % H % THD thru the 31st
Total 4.35 Amps rms 3 5.1 19 2.1 % THD 26.4
Fund 4.28 Amps rms 5 20.7 21 2.9
Har 1.11 Amps rms 7 9.7 23 2.6 % Odd 82.8
  9 6.7 25 1.3 % Even 2.5
11 6.3 27 1.2 % Triplen 9.4
13 3.7 29 2.0
15 2.7 31 2.0 K factor 5.7
17 3.4
Input Voltage: 4- Personal Computers with 5PHF Filter
Two Graphs
Circuit H % H % THD thru the 31st
Total 111.5 Volts rms 3 0.8 19 0.1 % THD 1.3
Fund 111.5 Volts rms 5 0.4 21 0.1
Har 1.4 Volts rms 7 0.1 23 0.1 % Odd 1.2
9 0.7 25 0.2 % Even 0.4
11 0.0 27 0.1 % Triplen 1.1
13 0.3 29 0.2
15 0.1 31 0.1 K factor 1.0
17 0.1