Cables Requirements - ABB ACS580MV Quick Manual

Cables requirements

In additional to below requirements, all electrical installations must comply with
local standards and regulations, and the cable installation must be in line with the
installation guidelines of the cable manufacture. To fulfill EMC requirements, cable
screens are mandatory on the motor side of the drive.
For more detailed information, please contact ABB to receive the power cable
specification.
•
Feeder cable requirements
No special requirements from converter point of view.
•
Motor cable requirements
The table summarizes the requirements to the motor cable coming from the
operation with an ACS580MV.
Converter type
Motor rated voltage
(fundamental)
Cable insulation U0/U(Um),
based on IEC60502-2,
Categories A and B
Max. cable length
Max. number of parallel cables 2 (limited by terminals)
Special derating factors
Derating due to converter
operation
In case single-phase cables are used, they need to be installed in a triangle (trefoil)
configuration.
If the overall cross section of the screen of the 3-phase system is >50% of the phase
conductor cross section, no further precautions are have to be considered.
If the overall cross section is <50%, an additional equiptential bonding conductor is
recommended in order to prevent overloading of the screen in case of potential
differences in the plant. The minimum cross section of this conductor depends on
the cable length:
2
•
≥50 mm , for cable length < 300 m
2
•
≥95 mm , for cable length > 300 m
The converter must be connected to system ground at one point. The ground point
inside the converter is referred to as Protective Earth (PE).
The cross section of the ground cable must be ≥150 mm
The connection to system ground has to be established in compliance with local
regulations.
Multi-level converter isolated from
ground
3.3kV/4.16kV/6.6kV/10.0kV/10.5kV/11kV
Motor voltage 3.3/4.16/6.6kV:
3.6/6(7.2)
Motor voltage 10/10.5/11kV:
6/10(12)
1000 m
For operation above 100 Hz, please
consult reference [3] for skin effect
1.0
Electrical installation 21
2
.