Electrical equipment at a modern seamless tube mill

Author

Cowan, John C. ; Rihal, Daljeet S. ; Smylie, Robert R.

Author_Institution

Asea Brown Boveri, Montreal, Que., Canada

fYear

1988

fDate

2-7 Oct. 1988

Firstpage

1181

Lastpage

1190

Abstract

A description is given of major electrical equipment installed at a seamless-tube mill and some of the considerations that influenced its selection and design. The initial design work to rationalize different mill builders´ requirements and thus reduce the spares inventory is described. The equipment includes main DC motors and drives totaling some 20 MW for the piercer, mandrel, and stretch reducing mills. Of particular interest is a 1.6 MW low-inertia six-armature DC drive for the mandrel rack. Other equipment includes auxiliary DC drives, variable-frequency drives for roller tables, 15 Hz generating sets, and dry-type cast coil transformers. Control and automation uses eleven programmable controllers for logic sequences and mill automation and eleven microprocessors for operator interface and complex control functions.<>

Keywords

DC motors; metallurgical industries; power apparatus; process computer control; variable speed drives; 1.6 W; 15 Hz; 20 MW; DC motors; drives; electrical equipment; manufacturing computer control; metallurgical industries; microprocessors; power apparatus; programmable controllers; seamless tube mill; transformers; variable-frequency drives; Automatic control; Automation; Coils; DC generators; DC motors; Microprocessors; Milling machines; Programmable control; Transformers;

fLanguage

English

Publisher

ieee

Conference_Titel

Industry Applications Society Annual Meeting, 1988., Conference Record of the 1988 IEEE

Conference_Location

Pittsburgh, PA, USA

Type

conf

DOI

10.1109/IAS.1988.25210

Filename

25210