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AC drives help modernise hot rolling finishing mill

15 May 2012

The existing DC main drives of a hot rolling finishing mill at Aperam's stainless steel plant in Châtelet, Belgium are to be replaced with more powerful AC systems supplied by Siemens, as part of a project of modernisation plans within Aperam's Leadership Journey to reduce costs and improve profitability.

The drives will be modernised in seven stages during scheduled annual maintenance stoppages, with completion expected by the end of 2019. The first conversion work is planned for mid-2013.

Siemens is to supply the motors, converters and transformers for the project and will handle installation supervision, commissioning and training. All seven stands of the finishing mill will be equipped with identical compact 12-megawatt machines which will be used for the first time.

Adapting the existing structural environment presents a challenge, especially with regard to the existing different motor foundations. The modernisation project will be carried out jointly by the Siemens Competence Center for electrical and automation engineering in the steel industry in Erlangen, Germany, and by Siemens Belgium.


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