Online Method for Location of Single Phase to Ground Fault through Cement Pole in Distribution Network

Hong Yu Yang

doi:10.4028/www.scientific.net/AMM.494-495.1739

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HomeApplied Mechanics and MaterialsApplied Mechanics and Materials Vols. 494-495Online Method for Location of Single Phase to...

Online Method for Location of Single Phase to Ground Fault through Cement Pole in Distribution Network

Abstract:

In China,most of distribution system is neutral noneffectively grounded. And the single-phase fault often happens through cement pole. In this paper,firstly,the voltage of the fault phase and the current of cement pole are derived in 10kV neutral noneffectively grounded distribution systems when cement pole has single-phase ground fault.Secondly,the online fault location method is proposed based on voltage gradient of cement pole.Thirdly,the resistence characristic of cement pole is analyzed and the distance obtained from the gradient voltage of cement pole is given.Finally, the theoretical analysis and simulation experiments show that the method is feasible.

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Periodical:

Applied Mechanics and Materials (Volumes 494-495)

Pages:

1739-1742

DOI:

https://doi.org/10.4028/www.scientific.net/AMM.494-495.1739

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Online since:

February 2014

Authors:

Hong Yu Yang*

Keywords:

Cement Pole, Distribution Network, Fault Location, Gradient Voltage, Online Location

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* - Corresponding Author

References

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