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Monitoring changes in mechanical state of windings of power transformers caused by radial deformations

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Abstract

A method for monitoring of the mechanical state of the windings of power transformers, which enables one to identify the effects of the appearance of radial deformations of the windings by varying the phase-shift angle between the voltages of the pair of windings is suggested. The method is an alternative to the method of measuring the short-circuit resistance for use in load modes.

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References

  1. RD (Guiding Document) no. 153-34.3-46.304-00: Regulation on Expert System for Inspecting and Estimating the State and Operating Conditions of Power Transformers, Bypassing Reactors, Current and Voltage Measuring Transformers, 2000.

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Authors
  1. A. V. Prokhorov
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  2. E. I. Gol’dshtein
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Additional information

Original Russian Text © A.V. Prokhorov, E.I. Gol’dshtein, 2011, published in Elektrotekhnika, 2011, No. 7, pp. 20–26.

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Prokhorov, A.V., Gol’dshtein, E.I. Monitoring changes in mechanical state of windings of power transformers caused by radial deformations. Russ. Electr. Engin. 82, 359–364 (2011). https://doi.org/10.3103/S1068371211070066

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  • DOI: https://doi.org/10.3103/S1068371211070066

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