Proceedings of the Korean Institute of IIIuminating and Electrical Installation Engineers Conference (한국조명전기설비학회:학술대회논문집)
- 2008.10a
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- Pages.301-306
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- 2008
Comparison Analysis of Partial Discharge Detection Methods in Cast Resin Dry Type Transformers
몰드변압기에서 부분방전 검출방법의 비교분석
- Published : 2008.10.17
Abstract
Various sensors such as capacitive probe, high frequency current transformer (HFCT), and acoustic emission (AE) probe were applied to a cast resin dry type transformer for partial discharge detection. We designed and fabricated a wideband low-noise amplifier having a gain of 40[dB]. From the experiment which was carried out in the same transformer, the sensitivities were 7.16[mV/pC] for capacitive probe, 3.8[mV/pC] for HFCT, and 17.9[mV/pC] for AE probe.
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