ABB ACS880-07 - Additional Note for Sine Filters

0.0
0.5
1.0
1.5
2.0
2.5
3.0
l (m)
du/dt
U
n
-------------(1/ s)
Û
LL
/U
n
A
B
Û
LL
/U
n
l (m)
du/dt
U
n
-------------(1/ s)
0.0
1.0
5.0
4.0
3.0
2.0
100 200 300
150 250 350500
100 200 300150 250 350500
Drive with d u /d t filterA
Drive without d u /d t filterB
Motor cable length I
Relative peak line-to-line voltage Û
LL
/ U
N
Relative d u /d t value(d u /d t )/ U
N
Additional note for sine filters
A sine filter also protects the motor insulation system. The peak phase-to-phase
voltage with a sine filter is approximately 1.5 · U
n
.
Guidelines for planning the electrical installation 99