Power Factor Correction Capacitors - ABB ACS 601 Hardware Manual

Safety Instructions
Without Filter
With dv/dt Filter
Power Factor
Correction Capacitors
viii ACx=ACS/ACC/ACP
Below is a diagram of V
no dv/dt filter is used.
5
4,5
4
3,5
3
2,5
2
1,5
1
0,5
0
0 50
0
Below is a diagram of V
dv/dt filter at the output of the ACx 600.
5
4,5
4
3,5
3
2,5
2
1,5
1
0,5
0
0 50
0
Power factor correction capacitors and surge absorbers must not be
connected between the drive and the motor. These devices are not
designed to be used with AC drives, and will degrade motor control
accuracy. They can cause permanent damage to the ACx 600 or
themselves due to the rapid changes in the ACx 600 output voltage.
If there are power factor correction capacitors in parallel with the ACx
and dv/dt as a function of cable length when
PK
V / V
PK N
100 150
500
Cable length
and dv/dt as a function of cable length with
PK
V / V
PK N
100 150
500
Cable length
dv/dt / (kV/µs)
200 250
dv/dt / (kV/µs)
200 250
ACS/ACC/ACP 601 Drives
(m)
300
1000
(feet)
(m)
300
1000
(feet)