Chapter 2 – Operation Basics
2-4
ACA 635 IGBT Supply Sections
Voltage Harmonics
A typical spectrum of the voltage harmonics at the output of the
transformer is shown below. Each harmonic is presented as a
percentage of the fundamental voltage. n denotes the order of the
harmonic.
Line Current Harmonics
A typical spectrum of the line current harmonics is shown below. Each
harmonic is presented as a percentage of the fundamental current. n
denotes the order of the harmonic.
0
1
2
3
4
5
6
7
THD
11
21
31
41
51
61
71
81
91
101
111
121
131
141
151
161
171
181
191
n
0
0.5
1
1.5
2
2.5
3
3.5
4
THD
11
21
31
41
51
61
71
81
91
101
111
121
131
141
151
161
171
181
191
n
Содержание ACS 600 MultiDrive
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