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Published in: Electrical Engineering 6/2022

04-08-2022 | Original Paper

Prediction method of breakdown voltage of long air gaps containing a floating conductor

Authors: Cheng Xie, Linong Wang, Jiachen Gao, Shaocheng Wu, Bin Song, Lei Liu, Tingting Wang

Published in: Electrical Engineering | Issue 6/2022

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Abstract

The maintenance of power transmission lines is often carried out through live working to ensure the uninterrupted power supply of the power systems. When the worker enters the high potential area from the ground potential, it forms a floating potential conductor, which affects the air gap discharge characteristics in the transmission lines. Studying the discharge characteristics in this condition is directly related to the safety of the workers. This article builds a long air gap experimental platform with a floating potential conductor to simulate the actual working conditions in live working. Finally, the positive switching impulse breakdown voltages with the floating potential conductor in different longitudinal positions are obtained. The results show that the existence of the floating potential conductor will affect the breakdown voltage of the air gap, and there is a position with the lowest breakdown voltage. Furthermore, considering the disadvantages of the high cost of the full-scale test, this article uses experimental data to establish a mathematical model to predict the breakdown voltages. By comparing the predicted value with the experimental value, it can be found that the model has good adaptability and can be used to predict the breakdown voltage in this condition.

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Literature
23.
go back to reference Baldo G (1989) Floating potential bodies and their interaction with discharge development. In: 6th ISH, New Orleans Baldo G (1989) Floating potential bodies and their interaction with discharge development. In: 6th ISH, New Orleans
24.
go back to reference Hutzler B (1987) Switching Impulse Strength of Air Gaps Containing a Metallic Body at Floating Potential. In: 5th ISH, Brauschweig Hutzler B (1987) Switching Impulse Strength of Air Gaps Containing a Metallic Body at Floating Potential. In: 5th ISH, Brauschweig
25.
go back to reference Viljoen R (2009) Flashover performance of a rod-rod gap containing a floating rod under switching impulses with critical and near critical times to crest, Dissertation, University of the Witwatersrand Viljoen R (2009) Flashover performance of a rod-rod gap containing a floating rod under switching impulses with critical and near critical times to crest, Dissertation, University of the Witwatersrand
29.
go back to reference Baldo G, Hutzler B, Pigini A, Rizk F (1992) Guidelines for the Evaluation of the Dielectric Strength of External Insulation, CIGRE SC 33 WG 07, chapter Fundamentals of the discharge mechanics Baldo G, Hutzler B, Pigini A, Rizk F (1992) Guidelines for the Evaluation of the Dielectric Strength of External Insulation, CIGRE SC 33 WG 07, chapter Fundamentals of the discharge mechanics
Metadata
Title
Prediction method of breakdown voltage of long air gaps containing a floating conductor
Authors
Cheng Xie
Linong Wang
Jiachen Gao
Shaocheng Wu
Bin Song
Lei Liu
Tingting Wang
Publication date
04-08-2022
Publisher
Springer Berlin Heidelberg
Published in
Electrical Engineering / Issue 6/2022
Print ISSN: 0948-7921
Electronic ISSN: 1432-0487
DOI
https://doi.org/10.1007/s00202-022-01605-5

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