• ISSN 0258-2724
  • CN 51-1277/U
  • EI Compendex
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Volume 19 Issue 4
Aug.  2006
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Article Contents
FU Longhai, WU Guangning, WANG Hao, LI Jin. New Device for Grounding Resistance Measurement of Grounding Grids along Qinghai-Tibet Railway[J]. Journal of Southwest Jiaotong University, 2006, 19(4): 456-459.
Citation: FU Longhai, WU Guangning, WANG Hao, LI Jin. New Device for Grounding Resistance Measurement of Grounding Grids along Qinghai-Tibet Railway[J]. Journal of Southwest Jiaotong University, 2006, 19(4): 456-459.

New Device for Grounding Resistance Measurement of Grounding Grids along Qinghai-Tibet Railway

  • Received Date: 04 Nov 2005
  • Publish Date: 25 Aug 2006
  • To reduce the cost in grounding resistance measurement of grounding grids along Qinghai-Tibet railway,a new grounding grid resistance measurement device was designed.When the measurement is conducted with the device,the earth surface voltage distribution is measured first to determine the spot where voltage pole is installed.Frequency conversion technology was used to avoid alternating current disturbances and to get a reasonable measurement precision.Compared with the traditional method,in which a large current is necessary,the capacity,the wiring length and the needed labor of the proposed system are reduced by 80%,60% and 62%,respectively,with a difference in measured resistance being about 6%.

     

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