The Journal of Korean Institute of Electromagnetic Engineering and Science (한국전자파학회논문지)

The Korean Institute of Electromagnetic Engineering and Science (한국전자파학회)
권호 표지

Characteristics of Time-Changing Electric and Magnetic Fields at a High Voltage Laboratory

고전압 실험실에서 시변성 전자계의 특성

  • 이복희 (인하대학교 전기공학과) ;
  • 이경옥 (인하대학교 전기공학과) ;
  • 안창환 (인하대학교 전기공학과)
  • Published : 1997.03.01
Download PDF
⟨ Previous Next ⟩

Abstract

This paper deals with measurements and evaluation of the time-changing electric and magnetic fields at a high-voltage laboratory. The electromagnetic disturbances originate mainly from ground faults and on/off operations of electric power equipments. The electronic circuits and control devices are very sensitive to electromagnetic interferences. It is necessory to evaluate the levels of interferences for a given electromagnetic environment. The electric field was observed by the electric field sensor having the bandwidth of the range from 40 Hz to 200 MHz, and the time-changing magnetic field was measured by the loop sensor of which the output is directly proportional to the incident signal. Also, the frequency components of the time-changing electric and magnetic fields induced by an oscillatory transient current and a chopped impulse voltage were analyzed by terms of the fast Fourier transformation, and those give the information about the levels of the electromagnetic interferences and the design of the electromagnetic shielding enclosures.

본 논문은 고전압 실험실에서 시변성 전자계의 측정 및 평가에 관한 것으로 전자적 외란은 주로 전력장비의 지락고장 및 개폐조작에 의해 기인되며, 전자회로와 제어장비틀은 전자방해작용에 매우 민감하다. 주어진 전자환 경에 대한 전자방해작용의 레벨을 평가하는 것은 필수적이다. 전계는 40 Hz-2oo MHz 범위의 대역폭을 갖는 전계센서로 관측되었으며, 시변성 자계는 출력이 입사신호에 직접적으로 비례하는 루프형 센서로 측정되었다. 또한 진동성 과도전류와 차단파 임펄스전압에 의해 유도된 전자방해작용의 레벨파 전자 차폐의 외함설계에 관한 정보를 주는 사변성 전자계의 주파수 성분을 고속프리에변환으로 분석하였다.

Keywords

References

  1. Proc. of 4th International Symposium on High Voltage Engineering(ISH) Paper no.64 electromagnetic Interference Field Induced by Discharges of HV Impulse Generators R. Malewski;J. Huc;A. Podgoeski
  2. Time-Domain Measurements in Electromagnetics Edmund K. Miller
  3. IEEE Trans. v.PAS-104 Micro-Gap Discharge Phenomena and Television Interference K. Aria(et al.)
  4. Proc. of Annual Conference of IEE of Japan no.1288 Generation Apparatus and Measuring System of Very Fast Transient Surges T. Kawamura;T. Nishimura;B. H. Lee;M. Ishii
  5. IEEE Trans. v.AP-26 Seonsor for Electromagnetic Pulse Measurement Both Inside and Away from Niclear Source Regions C. E. Baum(et al.)
  6. Electronic Measurements F. E. Terman;J. M. Petit
  7. KIEE Trans. v.46 no.1 Transient Electric Field Analysis with a New Measureing System around High Voltage Apparatus B. H. Lee(et al.)
  8. IEEE Trans. CH-2116-2 Self-Integrating Magnetic Field Sensors J. A. Cameron
  9. IEEE Standards Board IEEE Standard Procedures for Measurement of Power Frequency Electric and Magnetic Fields from AC Power Lines : ANSI/IEEE Std.-644
  10. Proc. of 5th ISH Paper 12.04 Fourier Spectrum as a means of Representation and Evaluation of Transient Voltage Surges in GIS A. Aron;L. Fickert;F. Reisinger;W. Wais