Reinhausen solutions for process safety in steel manufacture and processing
Steel melt with consistently high performance and quality
Creating optimum conditions for the efficient steel production
In the various different manufacturing procedures for steel, steel production using arc furnaces poses the main challenges for power supply to the smelting works. The smelting process using an electrical arc must be ideally regulated to achieve the highest level of efficiency in production. A crucial regulating parameter is the arc voltage, which can be influenced by the tap-changer in the furnace transformer. A powerful tap-changer with several steps in the furnace transformer is therefore essential, as it ensures the process-related voltage regulation of the transformer and thus the optimum melting duration. In particular, our on-load tap-changers can control the higher overload that is caused by the discontinuous current flow.
In addition, a high number of mill rotations can occur in the rolling mills, which are used in steel processing and thus may cause higher number of on-load tap-changer switching operations of the supplying transformer. Furthermore, mains feedback such as flickers occur in the power supply system as a result of load fluctuations and harmonics (converters), due to the drives in the mills. These mains feedbacks can be reduced by installing static and/or dynamic compensation systems meeting the demands of the network provider. This requires thyristor controls or IGBT compensators, in addition to filter circuit systems.
Innovative products and service for optimizing steel production
With their extensive range of products and tailor-made services for all aspects of process and furnace transformers, the Reinhausen Group is supporting you worldwide in optimizing your steel production processes. This starts with tap-changers that are designed for use in steelworks. These enable you to minimize downtimes and achieve the best possible furnace utilization, regardless of whether you decide upon a tap-changer with conventional or low-maintenance vacuum switching technology.
In addition to on-load tap-changers, coordinated electronic products guarantee the control required for safe and highly efficient melting processes.
Accessories also contribute quite substantially to optimizing melting processes. The Reinhausen Group’s global service network ensures that you are always accompanied by a strong, committed partner, whose goal is to contribute towards increasing the productivity of your steelworks.
The innovative solutions of the business division Power Quality Management (PQM) ensure stable and secure power supply systems with all types of manufacturing and refinement procedures and all types of furnaces, whether they are blast furnaces, arc furnaces or ladle furnaces as well as in reduction and powerful medium-frequency furnaces that are used to refine steel. For this purpose, static or dynamic compensation systems must be used, which consist of filter circuit systems and thyristor controls or IGBT compensators and which must be adapted to the specific technological solutions.
On-load tap-changers