한국조명전기설비학회:학술대회논문집 (Proceedings of the Korean Institute of IIIuminating and Electrical Installation Engineers Conference)
- 한국조명전기설비학회 2000년도 학술대회논문집
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- Pages.251-256
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- 2000
변압기의 권선변형 검증을 위한 LVI 시험기 개발
The Development of LVI Tester for WInding Deformation Measurement in Power Transformers
초록
The assessment of the condition of a transformer winding which is suspected of having suffered short circuit damage can be difficult. Conventional test such as winding resistance, magnetisation current or insulation resistance will only detect damage if a permanent electrical fault exists. Visual inspection of windings necessitates the removal of oil and in many cases only a very small proportion of the winding can be seen. We describe the characteristics. As the front rise time of recurrent-surge generator pulse less than 1000ns and the peak value of pulse is about 500V, we have the good results of detecting winding deformation in the LVI test of transformers.
키워드