Open Access

ARTICLE

A Novel Trenchless Detection Technology Based on Transient Electromagnetic Method for Power Poles

by Lingda Xu, Dandi Zhang, Jun Zhou, Zhou He, Xiao Fang, Yonglin Zhi

1 Baisha Power Supply Bureau of Hainan Power Grid Corporation, Haikou, 570000, China
2 Wuhan National High Magnetic Field Center, Huazhong University of Science and Technology, Wuhan, 430074, China
3 Wuhan Second Ship Design and Research Institute, Wuhan, 430074, China

* Corresponding Author: Jun Zhou. Email:

Energy Engineering 2020, 117(1), 19-26. https://doi.org/10.32604/EE.2020.010409

Issue published 28 February 2020

Abstract

For the application of inspecting the construction status of distribution network poles, this paper proposed a novel detection technology for base plates, pulling plates, chucks (abbreviated as BPC) which are buried together with the power poles based on exerting external current excitation. The detection system consists of lead wires for BPC, an excitation generating circuit, a signal receiving coil, a signal conditioning circuit and an embedded processor. Compared with the traditional transient electromagnetic method, this technology is more suitable for detecting BPC which are buried shallowly, with higher sensitivity for depth changes and higher signal-to-noise ratio. Moreover, it can judge the integrity and connection condition of the BPC’s metallic frameworks. The feasibility of this method is verified by simulations and experiments based on a prototype device.

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Keywords

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