The Calculation of Earth Capacitance Based on Least Square Method

Heng Xu Ha; Xiao Liu; Xi Tong Hu

doi:10.4028/www.scientific.net/AMR.433-440.6028

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HomeAdvanced Materials ResearchAdvanced Materials Research Vols. 433-440The Calculation of Earth Capacitance Based on...

The Calculation of Earth Capacitance Based on Least Square Method

Abstract:

The grounding capacitive current is one of the most important parameters of ungrounded neutral system. Usually this parameter is obtained with the method of additional capacitor or metal grounding. However, the former is complicated and the additional capacitor has negative effects on measurement results, and the later is dangerous when used in testing. In view of that, the paper proposes a new method to calculate grounding capacitance current based on the data of single-phase-grounding faults in power system with indirectly earthed neutral. This method reduces the error by using the least-square method .The ATP simulation results show that this method is accurate basically.

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Periodical:

Advanced Materials Research (Volumes 433-440)

Pages:

6028-6032

DOI:

https://doi.org/10.4028/www.scientific.net/AMR.433-440.6028

Citation:

Cite this paper

Online since:

January 2012

Authors:

Heng Xu Ha, Xiao Liu, Xi Tong Hu

Keywords:

Capacitance to Earth, Least Square (LS), Single-Phase Earth, Small Current Grounding System

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References

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