南方电网技术2017，Vol.11Issue(6)：22-28,7.DOI:10.13648/j.cnki.issn1674-0629.2017.06.004
基于雷击特性的配网避雷器可靠性与经济性研究
Research on Reliability and Economy of Distribution Network Arrester Based on Lightning Characteristics
廖民传 1蔡汉生 1贾磊 1胡上茂 1刘刚1
作者信息
摘要
Abstract
In order to master the lightning strike characteristics of distribution network arrester and propose economic and reliable improvement measures, firstly, the lightning strike conditions of arresters for distribution transformer and arresters for distribution line in typical 10 kV distribution network are classified and simulated, the change rule and numerical level of residual voltage, discharge current and absorbed energy of arrester are obtained.Then, the absorbing lightning surge energy level of D3, D4 and D5 varistor arresters are calculated.Meanwhile, combined with the arrester electric characteristic data, the overload lightning current range and the corresponding overload probability of arresters are given.Furthermore, the technical and economic evaluation of the configuration of MOA with different varistors is carried out.Results show that the use of D4 or D5 varistors arrester can reduce annual average operating costs, improve power supply reliability and reduce maintenance pressure.关键词
配网避雷器/雷击工况/电气过载/可靠性/经济性Key words
distribution network arrester/lightning condition/electrical overload/reliability/economy分类
信息技术与安全科学引用本文复制引用
廖民传,蔡汉生,贾磊,胡上茂,刘刚..基于雷击特性的配网避雷器可靠性与经济性研究[J].南方电网技术,2017,11(6):22-28,7.
