ANALYSIS OF TECHNICAL-ECONOMIC INDICATORS OF TRANSFORMER WHEN REGULATINGVOLTAGE WITHVARIABLE BY VALUE MAGNETIC FLUX

The technical and economic characteristics of a two-winding step-down transformer are analyzed, which characterize its operation after the end of the secondary voltage regulation process with a variable magnetic flux in the range of 5-15%. Regimes for regulating the secondary voltage of the transformer are considered when placing the adjusting winding on the high voltage side. A quantitative assessment of the effect of the control regime under variable magnetic flux on the main characteristics of the transformer is made. The parameters of the transformer are revealed, to which the alternating magnetic flux has the greatest and smallest effect. Possible negative consequences of the long-term operation of the transformer in the regulating mode of the secondary voltage with variable magnetic flux are described. It is shown that it is necessary to take into account the effect of a variable magnetic flux on the parameters of the transformer at the design and fabrication stage.

Authors: A. G. Lavrov, E. N. Popov

Direction: Electrical Engineering

Keywords: Two-winding transformer, voltage regulation, alternating magnetic flux, regulating modes, technical and economic indicators, transformer parameters

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