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Methodology of Detection for Power Cable Insulation Defects Based on DC Voltage Withstand Test Read chapter Read first chapter

2014 | OriginalPaper | Chapter

Single-Phase Ground Fault Detection of Small Current Grounding System Base on Wavelets Analysis

Authors : Huanghuang Liu, Qianjin Liu

Published in: Unifying Electrical Engineering and Electronics Engineering

Publisher: Springer New York

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Abstract

In order to improve the accuracy of line selection and reduce the possibility of single-phase ground fault in small current grounding system, this chapter solved two key problems including exploring the fault information of transient signals as much as possible and extracting the characteristic component of transient signals. This chapter proposed that the wavelet analysis theory is applied to the fault detection from the signal processing’s point of view and realized to select the fault line by extracting the characteristic component of transient signals through the wavelet analysis and the comparison of the modulus maxima. At last, the feasibility of the line selective method was verified through a typical system in MATLAB simulation.

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Metadata
Title
Single-Phase Ground Fault Detection of Small Current Grounding System Base on Wavelets Analysis
Authors
Huanghuang Liu
Qianjin Liu
Copyright Year
2014
Publisher
Springer New York
Book
Unifying Electrical Engineering and Electronics Engineering

Print ISBN: 978-1-4614-4980-5

Electronic ISBN: 978-1-4614-4981-2

Copyright Year: 2014

DOI
https://doi.org/10.1007/978-1-4614-4981-2_28