voestalpine Stahl Donawitz GmbH & Co KG in Donawitz, Austria, uses ABB's ACS 5000 variable speed drive to control the blast furnace blower, increasing efficiency and saving energy and maintenance costs.
This case note explains the installation of ABB's ACS 5000 variable speed drive on the 8.4 MW blast furnace blower at voestalpine Stahl Donawitz, Austria. The drive replaces mechanical inlet guide vanes, providing synchronized bypass capability and direct‑on‑line operation on a 6 kV network.
The ACS 5000 delivers roughly 10 % energy savings and about a 90 % reduction in maintenance costs, while integrating smoothly with existing fieldbus systems and offering real‑time diagnostics via DriveMonitor™.
| Rated power | 8.4 MW (11,300 hp) |
|---|---|
| Inverter type | Multilevel Voltage Source Inverter (VSI) |
| Frequency | 75 Hz (higher optional) |
| Efficiency | > 98.5 % (incl. auxiliaries) |
| Motor compatibility | Induction, synchronous or permanent magnet motor |
Approximately 10 % energy savings were reported.
Maintenance costs were reduced by about 90 %.
Yes, it can be synchronized to the 6 kV network and operated direct‑on‑line if needed.