Fault detection in the secondary side of electric arc furnace transformer using the primary side data

2013 ◽  
Vol 24 (10) ◽  
pp. 1419-1433 ◽  
Author(s):  
Farzad Dehghan Marvasti ◽  
Haidar Samet
Keyword(s):  
Fault Detection ◽  
Electric Arc Furnace ◽  
Electric Arc ◽  
Arc Furnace ◽  
Furnace Transformer ◽  
Secondary Side

Mitigation of Electric Arc Furnace Transformer Inrush Current Using Soft-Starter-Based Controlled Energization

2018 ◽  
Vol 54 (4) ◽  
pp. 3909-3918 ◽  
Author(s):  
Igor Amariz Pires ◽  
Alysson Augusto Pereira Machado ◽  
Braz de Jesus Cardoso Filho
Keyword(s):  
Electric Arc Furnace ◽  
Electric Arc ◽  
Inrush Current ◽  
Arc Furnace ◽  
Furnace Transformer ◽  
Soft Starter

Analytical Electron Microscopy Characterization of Electric Arc Furnace Dust

1981 ◽  
Vol 39 ◽  
pp. 134-135
Author(s):  
J. R. Porter ◽  
J. I. Goldstein ◽  
D. B. Williams
Keyword(s):  
Electron Microscopy ◽  
Analytical Electron Microscopy ◽  
Electric Arc Furnace ◽  
Electric Arc ◽  
Dust Particles ◽  
Particle Analysis ◽  
Arc Furnace ◽  
Analytical Electron ◽  
Residual Elements ◽  
Industry Practice

Alloy scrap metal is increasingly being used in electric arc furnace (EAF) steelmaking and the alloying elements are also found in the resulting dust. A comprehensive characterization program of EAF dust has been undertaken in collaboration with the steel industry and AISI. Samples have been collected from the furnaces of 28 steel companies representing the broad spectrum of industry practice. The program aims to develop an understanding of the mechanisms of formation so that procedures to recover residual elements or recycle the dust can be established. The multi-phase, multi-component dust particles are amenable to individual particle analysis using modern analytical electron microscopy (AEM) methods.Particles are ultrasonically dispersed and subsequently supported on carbon coated formvar films on berylium grids for microscopy. The specimens require careful treatment to prevent agglomeration during preparation which occurs as a result of the combined effects of the fine particle size and particle magnetism. A number of approaches to inhibit agglomeration are currently being evaluated including dispersal in easily sublimable organic solids and size fractioning by centrifugation.

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