Analysis of Trip Faults and Protection Measures on 10kV and 20kV Distribution Lines

Abstract:

Based on the trip faults data of 10kV and 20kV distribution lines which come from actually power grid in China, this paper has done a large number of statistical analyses and investigations. Trip faults are classified and analyzed by fault positions, monthly changes, fault causes and so on. Preliminary analysis suggests that main factors which lead to trip faults are outer forces, meteorological conditions, improper operation and maintenance, quality of equipment and design processes. Rains, strong winds and lightnings have the worst impact on distribution lines in a period from June to August. External forces caused the most faults on conductors, towers and stay wires. According to different failure reasons, countermeasures are put forward pointedly,so can provide references for improving power supply reliability in distribution network.

• Periodical: Applied Mechanics and Materials (Volumes 672-674)
• Pages: 762-768
• DOI: https://doi.org/10.4028/www.scientific.net/AMM.672-674.762
• Online since: October 2014
• Authors: Yong Ling Lu*, Feng Bo Tao, Zhi Cheng Zhou, Song Gao, Jie Chen
• Keywords: Distribution Lines, Outer Forces, Protection Measures, Trip Faults

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