Additional Notes; A Drive Larger Than 500 Kva With An Igbt Supply Unit Or A Regenerative Rectifier Unit - ABB ACS880 Electrical Planning Instructions

18 Electrical planning guidelines

Additional notes

￭

A drive larger than 500 kVA with an IGBT supply unit or a regenerative rectifier 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.
1. Medium voltage network
2. Transformer
3. Low voltage network
4. Drive
5. Motors or other drives
6. Other load (not drives or motors)
1
6
1
6
5
2
3
5 4
5
2
3
4