ABB ACQ800 Series Hardware Manual page 34

34
Typical line current (i
I , U
u
U
An example spectrum and THD value of the current at the input of the drive are
shown below. Each harmonic is presented in percent of nominal current. n denotes
the ordinal number of the harmonic.
I [%]
10
9
8
7
6
5
4
3
2
1
0
THD
The ACQ800-37
) and phase voltage (u
U
i
U
3 5 7 9 11 13 15 17
) waveforms are shown below.
U
19 21 23 25 27 29 31 33
ACQ800-37 Hardware Manual
t [ms]
35 37 39 41 43 45 47 49
n