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유입 변압기에서 폴디드 다이폴형 센서의 부분방전 펄스 검출 특성The Detection Characteristics of the Partial Discharge Pluses with Folded Dipole Type Sensors in the Oil Transformers.
- Other Titles
- The Detection Characteristics of the Partial Discharge Pluses with Folded Dipole Type Sensors in the Oil Transformers.
- Issue Date
- Oct-2006
- Publisher
- 대한전기학회
- Keywords
- Oil-Immersed Transformer; Partial Discharge; Coupler; Oil-Immersed Transformer; Partial Discharge; Coupler
- Citation
- 전기학회논문지 C권, v.55, no.10C, pp.485 - 491
- Journal Title
- 전기학회논문지 C권
- Volume
- 55
- Number
- 10C
- Start Page
- 485
- End Page
- 491
- ISSN
- 1229-246X
- Abstract
- - This paper describes that the distribution of electromagnetic field occurred by PD(Partial Discharge) pulse was calculated with simulation program and characteristics of calibration and PD pulses measured with folded dipole types sensors were analyzed. As the distribution of electromagnetic field in simulation was very random the wide band measuring methods were good. Therefore three folded dipole antenna types sensors which had different their widths were designed and made. The signal according to direction and distance between sensor and pulse source in these sensor was measured and the spectrum of surface PD were acquired in the experiment of model transformer. In this result the characteristics of sensor which had middle width was better than others and the main spectrum of PD signals in surface discharge were existed in around 220㎒, 320㎒ and from 450㎒ to 750㎒.
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Related Researcher
- Kim, Jae Chul
- College of Engineering (School of Electrical Engineering)