KIEE International Transactions on Electrophysics and Applications

The Korean Institute of Electrical Engineers (대한전기학회)
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The Condition Assessment of Cast Resin Molded Transformer Windings Using Vertical Analysis of Thermal Distribution

  • Published : 2005.10.01
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Abstract

This paper presents an assessment method in integrity of the windings in cast resin molded transformers by using vertical analysis of thermal distribution. The proposed method is to compare the temperature distribution in a sound specimen with that in the faulted specimen with a layer to layer short circuit. Temperature distribution was acquired by an infrared thermography system, and the Arrhenius equation was adopted to the accelerated test. The proposed method can be used to detect the failures in the transformers.

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References

  1. Xavier P. V., 'Nondestructive testing handbook volume 3 infrared and thermal testing,' American society for nondestructive testing, Inc., pp. 21-22, 2001
  2. Peter C. and C. T. Elliott, 'Infrared detectors and emitters: materials and devices,' Kluwer academic publishers, pp. 1-4, 2001
  3. IEEE standard C57.12.60, 'Solid-cast and resinencapsulated power and distribution transformers,' pp. 2-4, 1998