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SIROLLCIS CM Solutions for cold rolling mills - Industry - Siemens

SIROLLCIS CM Solutions for cold rolling mills - Industry - Siemens

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Motors and drives<br />

Moving and cont<strong>rolling</strong> your product<br />

Synchronuous motors <strong>for</strong> maximum mill utilization<br />

Medium voltage source converter<br />

Robust long-lasting motors<br />

At <strong>Siemens</strong>, a wide range of motors<br />

especially suitable <strong>for</strong> the harsh <strong>rolling</strong><br />

mill environment are available. Based on<br />

decades of experience, the design of<br />

<strong>Siemens</strong> motors has been continually<br />

improved in order to withstand the rigid<br />

<strong>for</strong>ces in a <strong>rolling</strong> mill application.<br />

Based on our low-maintenance and<br />

reliable non-salient rotors we are able to<br />

offer the most attractive synchronous<br />

motors <strong>for</strong> main drive systems.<br />

High availability and low maintenance<br />

Compact design without fixing<br />

elements and screw connections<br />

Fewer electrical connections<br />

Vacuum impregnation of whole rotor<br />

Extremely rigid and robust design<br />

Optimal to withstand extreme <strong>for</strong>ces<br />

SINAMICS – Our latest converter<br />

technology<br />

With the introduction of the new<br />

SINAMICS drive technology into the<br />

<strong>rolling</strong> mill sector, <strong>Siemens</strong> offers<br />

solutions <strong>for</strong> nearly all market<br />

requirements, including special design<br />

and layout <strong>for</strong> motor revamps, all<br />

compliant with the above requirements.<br />

SINAMICS is orchestrating a unique<br />

change in drive technology. Based on a<br />

single plat<strong>for</strong>m, SINAMICS drives combine<br />

to <strong>for</strong>m a complete and consistent drive<br />

family that spans the entire per<strong>for</strong>mance<br />

range with regard to flexibility,<br />

functionality and engineering design.<br />

For the <strong>rolling</strong> mill main drive, the<br />

medium voltage source converter<br />

SINAMICS SM150 is already operational<br />

in several mill applications. The SINAMICS<br />

SM150 uses low to high-speed<br />

applications with regenerative supply.<br />

This requires high output power, torque<br />

and dynamic response.<br />

Thanks to its modular design and<br />

superior per<strong>for</strong>mance, the SINAMICS<br />

S120 low-voltage converter meets drive<br />

challenges in a very wide range of <strong>rolling</strong><br />

mil applications, including drives <strong>for</strong><br />

hydraulics, bridles, loopers and tension<br />

reels. Whether synchronous or<br />

asynchronous, all motors and<br />

applications receive optimal support from<br />

SINAMICS S120.<br />

Trans<strong>for</strong>mers – Key equipment <strong>for</strong><br />

reliability and energy consumption<br />

Our holistic approach <strong>for</strong> the design and<br />

layout of competitive <strong>mills</strong> considers<br />

more than the process equipment alone.<br />

The dimensioning of trans<strong>for</strong>mers is<br />

calculated based on the installed motor<br />

power and environmental conditions. The<br />

overload requirements defined by the<br />

operational process and production are<br />

also considered, as is the impact of<br />

energy conversion losses over the years.<br />

25

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