Open AccessFeasibility Analysis and Protection Measures of Live Working on the multi-circuit Transmission Lines on the Same Tower
Author(s) -
Zhenyu Ma,
Chao Chen,
Leijiao Ge,
Wen Binbin,
Jinhui Zhou,
Ziling Wang
Publication year - 2020
Publication title -
journal of physics. conference series
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.21
H-Index - 85
eISSN - 1742-6596
pISSN - 1742-6588
DOI - 10.1088/1742-6596/1550/5/052004
Subject(s) - tower , electric power transmission , reliability (semiconductor) , transmission line , electrical engineering , line (geometry) , power grid , transmission (telecommunications) , power (physics) , reliability engineering , engineering , computer science , structural engineering , physics , mathematics , geometry , quantum mechanics
Live line operation is the most direct and effective means for the maintenance of multi-circuit transmission lines on the same tower. It is also a special operation mode developed to improve the reliability of power supply and the safety of power grid. Therefore, it is necessary to analyze the feasibility of live line operation of multi-circuit transmission lines on the same tower. In this paper, 110 kV, 220 kV and 500 kV multi-circuit transmission lines on the same tower are taken as object, and the safety analysis of live working is carried out for typical working positions. According to the results of operation impact discharge test, the risk rate and safe working distance of live working are obtained; Finally, the minimum effective insulation length of load-bearing tools and operation tools is calculated.