Electrical Conditions of Foundry Operation of DC and AC Arc Furnaces

M. M. Krutyanskii; S. M. Nekhamin; M. V. Mitrofanov

doi:10.1134/S0036029518060113

Electrical Conditions of Foundry Operation of DC and AC Arc Furnaces

Authors: Krutyanskii M.M.¹, Nekhamin S.M.¹, Mitrofanov M.V.¹
Affiliations:
1. OO NPF COMTERM
Issue: Vol 2018, No 6 (2018)
Pages: 583-588
Section: Metallurgical and Electrothermal Equipment
URL: https://journal-vniispk.ru/0036-0295/article/view/172601
DOI: https://doi.org/10.1134/S0036029518060113
ID: 172601

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Abstract

The electrical conditions of operation of ac and dc 0.5- to 25-t furnaces, namely, the installed, active and net powers, the maximum electric arc voltage, the electric arc operating current, and the electrical efficiency, are considered and compared. The parameters of a dc twin furnace, where one power supply is used for two furnaces and the periods of melting and finishing of a liquid metal in these furnaces are separated in time, are analyzed.