대한전기학회:학술대회논문집 (Proceedings of the KIEE Conference)
- 대한전기학회 1996년도 추계학술대회 논문집 학회본부
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- Pages.462-463
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- 1996
DSP를 이용한 주상변압기 $tan{\delta}$ 측정기법 연구
Research of $tan{\delta}$ Measurement on Pole Transformer Using DSP
- 이보호 (숭실대학교 공과대학 전기공학과) ;
- 김재철 (숭실대학교 공과대학 전기공학과) ;
- 윤용한 (숭실대학교 공과대학 전기공학과) ;
- 임성정 (숭실대학교 공과대학 전기공학과) ;
- 김언석 (숭실대학교 공과대학 전기공학과) ;
- 이수길 (숭실대학교 공과대학 전기공학과)
- Lee, Bo-Hoo (Dept. of EleC. Eng., Soong Sil Univ.) ;
- Kim, Jae-Chul (Dept. of EleC. Eng., Soong Sil Univ.) ;
- Yoon, Yong-Han (Dept. of EleC. Eng., Soong Sil Univ.) ;
- Rim, Sung-Jung (Dept. of EleC. Eng., Soong Sil Univ.) ;
- Kim, Oun-Seok (Dept. of EleC. Eng., Soong Sil Univ.) ;
- Lee, Su-Kil (Dept. of Elec. Eng., Soong Sil Univ.)
- 발행 : 1996.11.16
초록
This study describes the dissipation factor measuring techniques of insulating oil on the operating, transformer by using digital signal processing. After applying voltage to the sensor which is installed in a transformer, acquiring source voltage and current of sensor and using cross-correlation techniques, we can check the dissipation factor of insulating oil. To improve measuring accuracy and the speed of process, we use hardware such as TMS320C31 DSP board and analog filter and software such as fast cross-correlation techniques, rectangular window, and digital filtering techniques. We simulated the measuring accuracy and the degree of the noise effect of this new measuring techniques by computer simulation, and compared the simplified measuring devices with Schering Bridge on degraded insulating oil. The result showed that this measuring technique can be used as diagnostic method on the pole transformers.
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