CALCULATION OF THE EQUIVALENT ELECTRICAL PARAMETERS OF THE INDUCTOR OF INDUCTION CHANNEL FURNACE WITH DEFECTS IN ITS LINING
Journal Title: Електротехніка і Електромеханіка - Year 2018, Vol 0, Issue 4
Abstract
Aim. The aim of the paper is to determine a quantitative relationship between measured impedance of the inductor and the electrical characteristics of the separated melt circuit parts for the determination of the place of a liquid metal leakage and for the improvement in such way the diagnostic system of lining state of induction channel furnaces. Technique. The study was performed on the basis of the concepts of theoretical electrical engineering, mathematical physics, and mathematical modeling. Results. Using two equivalent electrical circuits of the inductor the analytical expressions and graphical dependencies, which determine a quantitative relationship between the parameters of the separated parts of a liquid-metal circuit and the impedance of the whole inductor measured in practice, for the presence of different lining defects, were found. The method for calculating the increments of equivalent electrical parameters of the inductor as a function of increments of the parameters of the secondary liquid-metal circuit was proposed. Scientific novelty. It is proved that for small changes (less than 10 %) of the parameters of the liquid-metal circuit, it is expedient to use a linear relationship between its increments and to create the sensitivity matrix, which clearly shows the presence of a strong or weak interrelation between the disturbed values of the parameters of the secondary circuit and the inductor. Practical significance. The use of this technique allows to develop the database for various types of lining defects for a given furnace and on its basis to predict the places of a melt leakage and the state of furnace lining owing to periodical measurements of the inductor parameters.
Authors and Affiliations
O. D. Podoltsev, V. M. Zolotaryov, M. A. Shcherba, R. V. Belyanin
Keywords
Related Articles
- EP ID EP491116
- DOI 10.20998/2074-272X.2018.4.05
- Views 93
- Downloads 0
DEVELOPMENT OF METHODS AND MEANS OF COMPUTER SIMULATION FOR STUDYING ARC FURNACE ELECTRIC MODES
Goal. The purpose of the article is the creation of a three-phase instantaneous coordinates Simulink computer model of the power supply and automatic coordinates control system (ACS) of the DSP-200 type arc furnace elect...
MULTIFREQUENCY ALGORITHMS FOR DETERMINING THE MOISTURE CONTENT OF LIQUID EMULSIONS BY THE METHOD OF RESONANCE DIELCOMETRY
Purpose. The main attention is paid to the development and investigation of multifrequency algorithms for the realization of the method of resonance dielcometric measurement of the humidity of emulsions of the type «nonp...
STATISTIC METHODS OF POLYIMIDE ENAMEL ISOLATION DEFECTIVE NON-DESTRUCTIVE CONTROL AT THE CONDITIONS OF PRODUCTION
In this paper can be used to not-destructive technological testing of defects isolation enameled wire with polyimide polymer. The thesis is devoted to the statistical method for processing, comparison and analysis of res...
INVESTIGATION OF A LINEAR PULSE-INDUCTION ELECTROMECHANICAL CONVERTER WITH DIFFERENT INDUCTOR POWER SUPPLY CIRCUITS
Purpose. The goal of the paper is to investigate the influence of the power circuits of the linear pulse-induction electromechanical converters (LPIEC), which form the current pulse of excitation of the inductor from the...
SYNTHES OF ROBUST ACTIVE SHIELDING SYSTEMS OF MAGNETIC FIELD GENERATED BY GROUP OF HIGH-VOLTAGE POWER LINES
Aim. The synthesis of robust active shielding system of magnetic field, generated by group of high voltage power lines for reducing the induction of the initial magnetic field to the sanitary standards level and reducing...