Discussion About Several Issues on Substation Grounding

doi:10.11985/2019.01.016

Abstract

Abstract:

Several issues about grounding in substation are introduced. First of all, the algorithm of maximum grounding current is given based on distribution of grounding impedance and short circuit; then the protection grounding grid and equipotential grounding grid with its evaluation standard of corresponding resistance are provided. In the end, the DC grounding and AC grounding system are discussed and the original is same. The above knowledge could provide preference for substation maintenance personnel and substation designer.

Key words: Grounding, short circuit, equal potential, DC grounding

CLC Number:

TM63

WANG Longyu,WANG Bingdong,CAI Lei,LI Lei. Discussion About Several Issues on Substation Grounding[J]. Journal of Electrical Engineering, 2019, 14(1): 89-94.

Figures/Tables 10

References 5

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