DOI QR코드

DOI QR Code

Design and Application of a Ground Risk Voltage Measurement System

대지 위험전압 측정기의 설계 및 적용

  • Jang, Un-Yong (Division of Electrical and Electronics Engineering, Korea Maritime University) ;
  • Cha, Hyeon-Kyu (Division of Electrical and Electronics Engineering, Korea Maritime University) ;
  • Cha, Sang-Wook (Division of Electrical and Electronics Engineering, Korea Maritime University) ;
  • Park, Dae-Won (Division of Electrical and Electronics Engineering, Korea Maritime University) ;
  • Kil, Gyung-Suk (Division of Electrical and Electronics Engineering, Korea Maritime University)
  • 장운용 (한국해양대학교 전기전자공학부) ;
  • 차현규 (한국해양대학교 전기전자공학부) ;
  • 차상욱 (한국해양대학교 전기전자공학부) ;
  • 박대원 (한국해양대학교 전기전자공학부) ;
  • 길경석 (한국해양대학교 전기전자공학부)
  • Received : 2010.12.20
  • Accepted : 2011.01.18
  • Published : 2011.03.01

Abstract

This paper dealt with the design, fabrication and application of a risk voltage measurement system (RVMS) which analyzes the step and touch voltages in electrical grounding systems. The RVMS supply 300 V and 1.4 A in ranges from 40 Hz to 1 kHz as the test power source. A DAQ module having resolution of 400 kS/s and 16 bit is equipped with 7 inputs for measuring voltage and current. Also, a noise elimination algorithm of digital filter was applied to reduce the measurement error caused by external noises as a commercial frequency current. The performance of the RVMS was evaluated by measurement of the step and touch voltage according to the IEEE standard 80 and 81 in a grounding system with a 10 m counterpoise. The result showed that the RVMS analyzes the risk voltage with the error below 5%.

Acknowledgement

Supported by : 한국연구재단

References

  1. A. Geri, IEEE Trans. on Power Delivery, 14, 1008 (1999). https://doi.org/10.1109/61.772347
  2. Ronald P. O Riley, DELMAR, 40 (2002).
  3. A. P. Sakis Meliopoulos, Power System Grounding and Transients: An Introduction, (Marcel Dekker, Inc., 1988), 119.
  4. Mohamed Nayel, Jie Zhao, Jinliang He, Zongyuan Cai, Qi Wang, CEEM/Dalian, 56 (2006).
  5. Ralph Morrison, Warren H. Lewis, GROUNDING AND SHIELDING IN FACILITIES, (John Wiley & Sons, 1990) p. 44.
  6. Tony Mitton, Robin Watson, CDEGS User Meeting, 1 (2005).
  7. IEEE Std 81-1983, 3.
  8. IEEE Std 80-2000,16.
  9. IEEE Std 81.2-1991.
  10. G. S. Kil, D. W. Park, U. Y. Jang, J. S. Han, and H. J. Kil, J. KIEEME 23, 793 (2010).