Selecting The Power Cables; General Rules - ABB ACS580-07 Hardware Manual

A
B
A Drive with du/dt filter
B Drive without du/dt filter
I Motor cable length
Û /U Relative peak line-to-line voltage
LL N
(du/dt)/U Relative du/dt value
N

Selecting the power cables

￭

General rules

Select the input power and motor cables according to local regulations:
• Select a cable capable of carrying the drive nominal current. See section
Ratings (page 149)
• Select a cable rated for at least 70 °C maximum permissible temperature of conductor
in continuous use.
• Make sure that the inductance and impedance of the PE conductor/cable (grounding
wire) are rated according to permissible touch voltage appearing under fault conditions
(so that the fault point voltage will not rise excessively when a ground fault occurs).
• 600 V AC cable is accepted for up to 500 V AC.
Guidelines for planning the electrical installation 61
3.0
Û
/U
LL N
2.5
2.0
1.5
1.0
0.5
0.0
0 50 100 150
5.0
du/dt
------------ - (1/Ps)
U N
4.0
3.0
Û
/U
LL N
2.0
1.0
1.0
0 50 100 150
for the rated currents.
du/dt
------------ - (1/Ps)
U N
200 250 300 350
l (m)
200 250 300 350
l (m)