ABB ACS880-104

Additional notes
A drive larger than 500 kVA with an IGBT supply unit
Use a two-winding transformer dedicated to drives and motors. Alternatively, use a
three-winding transformer, and connect only drives and motors to the same secondary
winding.
WARNING!
Do not connect capacitive load (for example: lighting, PCs, PLCs, small power
factor compensation capacitors, etc.), to the same transformer secondary winding
with drive. It can cause current resonances which can damage the equipment.
2
3
5
4
5
6
1
1
2
3
4
5
6
Medium voltage network1.
Transformer2.
Low voltage network3.
Drive4.
Motors or other drives5.
Other load (not drives or motors)6.
Two parallel-connected supply units
See the appropriate supplement for the parallel-connected supply units, or contact ABB for
instructions in selecting the transformer(s).
16 Electrical planning guidelines