Research on the Design of Low Resistance Grounding System for Entire Cable Power Line along the Railway

LIAo YU

Journal of Railway Engineering Society ›› 2009, Vol. 26 ›› Issue (8) : 88-92.

PDF(320 KB)
PDF(320 KB)
Journal of Railway Engineering Society ›› 2009, Vol. 26 ›› Issue (8) : 88-92.

Research on the Design of Low Resistance Grounding System for Entire Cable Power Line along the Railway

  • LIAo YU
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Abstract

Research purposes: As the design standard,the entire cable power line is adopted in construction of high—speed railway.For solving the problem that the capacitance current is big when the single—phase grounding failure of entire cable power line occurs,the low resistance grounding system should be used.Based on the comprehensive analyses of the low resistance grounding system,this paper offers the design method for low resistance grounding system for providing the reference to the similar works.
Research conclusions: Through analyses of the principle and characteristics of low resistance grounding system and the single—phase grounding failure,this paper offers the calculation methods for selection of equipment parameters and protection setting of low resistance grounding system for entire cable power line for high—speed railway,analyzes the reasons for general potential bonding in buildings when low resistance grounding system is adopted and gives the design method for it.

Key words

power line / low resistance / grounding system / design

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LIAo YU. Research on the Design of Low Resistance Grounding System for Entire Cable Power Line along the Railway[J]. Journal of Railway Engineering Society, 2009, 26(8): 88-92

References

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