대한전기학회:학술대회논문집 (Proceedings of the KIEE Conference)
- 대한전기학회 1996년도 하계학술대회 논문집 B
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- Pages.1152-1154
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- 1996
진동신호 분석을 이용한 변압기 고장판별법 연구
Fault determination of power transformer by using analysis of vibration signal
- Park, Su-Mun (Dept. of Electrical Engineering, Soongsil University) ;
- Chung, Chan-Soo (Dept. of Electrical Engineering, Soongsil University)
- 발행 : 1996.07.22
초록
In power transformers, vibration occurs at winding, core and case due to current, voltage, temperature changing and winding reformation. Winding deformation and change of vibration signals are occurred due to electromagnetic force induced by fault current. In this paper, in normal and fault states, the trends of fundamental waves and higher harmonics are considered. To inspect the factors that affect the fundamental waves and higher harmonics, the trends are considered with varying voltage and load. Determination functions are generated and applied to signals so that normal and fault state are determined by determination functions.
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