Gerdau upgraded the reheat furnace drives of its structural steel mill, located in Petersburg, Virginia, USA. The purpose of the upgrade was to replace obsolete equipment with modern AC drives that removed bottlenecks and improved plant performance.
The existing AC multidrive, controlling the stock, coming either from the cold or caster lines or the charging and discharging furnace areas, was replaced with the ABB ACS880-X04 multidrive series with Regenerative Rectifier Units (RRU).
Besides the electrical equipment, Russula also provided engineering services and spare parts. The AC drives were assembled in the Russula workshop at the end of 2018. Subsequently, the factory testing occurred in January of this year and the startup was in late February.
|PHPSESSID||The PHPSESSID cookie is native to PHP and allows websites to store serialized status data. On the website it is used to establish a user session and to pass status data through a temporary cookie, which is commonly known as a session cookie. These Cookies will only remain on your computer until you close the browser.|
|Google analytics (__utma, __utmb, __utmc, __utmz, _ga)||These cookies are used to collect information about the use of our website by visitors. We use the information to compile reports and to improve the site. Cookies collect information anonymously, which includes the number of visitors to the site, the place of origin of the visitors' site and the pages visited.||More information in Types of cookies used by Google .|
|Youtube(ACTIVITY, APISID, HSID, LOGIN_INFO, PREF, SID, VISITOR_INFO1_LIVE, YSC, demographics, dkv)||YouTube is used to provide useful videos or informational videos. Youtube stores information to be able to generate statistics on the visits of videos embedded in other pages.||More information in Types of cookies used by Google .|
|Google Maps (APISID, HSID, NID, PREF, S, SAPISID, SID, SSID, S_awfe, khcookie)||Show where the offices of our different services are located using Google Maps.||More information in Types of cookies used by Google .|