The Valve Effect of an Electric ARC and Problems in Controlling Electric-ARC Furnaces / Sivtsov A.V., Sheshukov O.Y., Tsymbalist M.M., Nekrasov I.V., Egiazar’yan D.K. // Metallurgist. - 2015. - V. 59, l. 5-6. - P. 380-385.

ISSN:

00260894

Type:

Article

Abstract:

The reasons for the existence of constant components of current and voltage in electric-arc furnaces are examined. It is noted that the accuracy with which the constant component of arc voltage is evaluated is strongly affected by the method used to sample the voltage signal. Results are presented from experimental studies of characteristics of the electric arc on a laboratory unit. It is shown that the magnitude of the constant component of the voltage on the electrodes depends on the constant component of the electrodes’ current. A method is described for determining the constant component of the arc voltage based on values of the constant components of electrodes’ current, voltage, and resistance. It is shown that it is best to use the method of dynamic volt-ampere characteristics for real-time monitoring of the parameters of the valve effect. Here, the quantity chosen as the controlled parameter is not the constant component of the arc voltage but the difference in its steady-state values. © 2015, Springer Science+Business Media New York.

Author keywords:

alternating current; constant components of current and voltage; electric-arc steelmaking furnaces; electrical characteristics; monitoring and control; valve effect of an electric arc

Index keywords:

Electric furnace process; Electric furnaces; Electrodes; Furnaces; Steelmaking; Steelmaking furnaces; Alternating current; Constant components; Electric arc steelmaking; Electrical characteristic; Mon

DOI:

10.1007/s11015-015-0113-6

Смотреть в Scopus:

https://www.scopus.com/inward/record.uri?eid=2-s2.0-84944711625&doi=10.1007%2fs11015-015-0113-6&partnerID=40&md5=3ee2ef623c86998196417be3b1743b29

Соавторы в МНС:

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Другие поля

Поле	Значение
Link	https://www.scopus.com/inward/record.uri?eid=2-s2.0-84944711625&doi=10.1007%2fs11015-015-0113-6&partnerID=40&md5=3ee2ef623c86998196417be3b1743b29
Affiliations	Institute of Metallurgy, Ural Division of the Russian Academy of Sciences, Ekaterinburg, Russian Federation; Ural Federal University (UrFU), Ekaterinburg, Russian Federation
Author Keywords	alternating current; constant components of current and voltage; electric-arc steelmaking furnaces; electrical characteristics; monitoring and control; valve effect of an electric arc
References	Khrenov, K.K., (1949) The Electric Welding Arc, , Mashgiz, Moscow; Nikol’skii, V.N., Rectifying action of the arc of a three-phase steelmaking furnace (1951) Elektrichestvo, 3, pp. 33-38; Markov, N.A., Barannik, “Effect of the constant component of the electrode currents on the operation of an electric-arc steelmaking furnace,” Tr. Kuibyshev. Poliltekh. Inst. Elektricheskie Apparaty (1970) Iss, 2, pp. 145-150; Merkulov, V.F., Sviridov, S.B., Cherepanov, S.L., Patent No. 2061059 RF (1996) IPC6 C21C5/52 “Method of evaluating the content of iron oxides in the slag during the production of iron alloys in AC electric-arc furnaces,” subm. 02.17.1993, publ., 5, p. 27; Pedro, A.A., Arlievskii, M.P., Kurtenkov, R.V., Variations of the constant component of the phase voltage in ore-roasting furnaces used to produce phosphorus and calcium carbide (2009) Elektrometallurgiya, 4, pp. 29-33; Pedro, A.A., Arlievskii, M.P., Kurtenkov, R.V., The constant component of phase voltage in the production of zirconium electrocorundum (2011) Elektrometallurgiya, 7, pp. 37-39; Pedro, A.A., Suslov, A.P., The valve effect in an electric-arc furnace (2012) Tsvetn. Metally, 12, pp. 91-95; Sivtsov, A.V., Sheshukov, O.Y., Aspects of monitoring the constant components of arc current and voltage and methods of evaluating and using them to monitor the status of the steelmaking operation, Proc. 14th Int. Conf. Current Problems in the Electrometallurgy of Steel, Chelyabinsk (2010) Pt, 2, pp. 162-166; Vorob’ev, V.P., Sivtsov, A.V., Author’s Certificate No. 1678190 USSR (1989) N05/V7/148, “Method of determining the electrical parameters in different zones of the working space of an electric-arc furnace,” subm, 7, p. 31; Leskov, G.I., (1970) The Electric Welding Arc, , Mashinostroenie, Moscow
Correspondence Address	Sivtsov, A.V.; Institute of Metallurgy, Ural Division of the Russian Academy of SciencesRussian Federation; email: aws2004@mail.ru
Publisher	Springer New York LLC
Language of Original Document	English
Abbreviated Source Title	Metallurgist
Source	Scopus