STEEL GRIPS online - New main drive systems for heavy-plate rolling mill at voestalpine Grobblech

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New main drive systems for heavy-plate rolling mill at voestalpine Grobblech

Nov 15, 2005

The Siemens Industrial Solutions and Services Group (I&S) has received an order from voestalpine Grobblech GmbH of Linz in Austria to equip the 4.2 meter heavy-plate rolling mill with new main drive systems. The project includes the delivery, installation and commissioning of new synchronous motors, the associated power supply system and a control and visualization system. The order is worth 6.2 million euros and start-up is scheduled for the end of 2006.

4.2 meter heavy-plate rolling mill

Two synchronous machines, each with a rated output of 7,200 kilowatts and a surge power output of 18,000 kilowatts, will replace the existing DC motors. The new motors will be powered by Simovert D cycloconverters. Also included in the scope of supply are transformers and feeder units as well as a control and visualization system for the main drives. In addition, Siemens is responsible for the entire detail engineering as well as for installation and commissioning of all the electrical components.

The new main drive system will have twice the output of the previously used DC drives. At the same time, the use of synchronous motors will increase the availability of the drives and reduce the maintenance overhead considerably.

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