Design and Fabrication of a Multi-function Ground Meter
(0) Grounding systems dissipate fault currents into the ground and suppress ground potential rise (GPR). There are some parameters such as ground impedance, soil resistivity, touch and step voltage representing the performance of grounding systems. In this paper, we described the design and fabrication of a multi-function ground meter which analyzes the parameters above mentioned. The prototype meter consists of a variable frequency power source, 16-bit and 16-input analog-digital converter, a signal processor, 6-auxiliary electrodes, and software. The power source generates sine-wave voltage up to 300 Vrms and frequency ranges from 45 Hz to 500 Hz. The meter measures ground potential differences at up to 6-locations and calculates the parameters by proposed algorithms. Comparative measurement with commercial ground meters was carried out according to the IEEE Std. 80, 81 and IEC 60364-4 to evaluate the accuracy of the multi-function ground meter (MGM).
Grounding systems Ground potential rise (GPR) Soil resistivity Ground impedance Risk voltage (Touch and Step voltage) IEEE Std. 80 IEEE Std.81 IEC 60364-4 Multi-function ground meter (MGM)
H. K. Kim J. S. Choi D. W. Park G. S. Kil
Division of Electrical and Electronics Engineering, National Korea Maritime University, Busan, 606-791, KOREA
国际会议
The International Conference on Electrical Engineering 2009(2009 电机工程国际会议)
沈阳
英文
1-5
2009-07-05（万方平台首次上网日期，不代表论文的发表时间）