Research on Helicopter Live-Line Work by Platform Method on 1000 kV UHV AC Transmission Lines

Author

Caibo Liao ; Jiangjun Ruan ; Zhiye Du ; Chao Liu ; Wu Wen ; Taotao Zhou

Author_Institution

Sch. of Electr. Eng., Wuhan Univ., Wuhan, China

Volume

51

Issue

3

fYear

2015

fDate

Mar-15

Firstpage

1

Lastpage

4

Abstract

This paper focuses on the security condition of line worker during the implementation of helicopter live-line work by platform method on 1000 kV ultrahigh voltage (UHV) transmission lines. First, a model of helicopter live-line work is presented, and the electric field distribution of line worker when performing live-line work on 1000 kV UHV transmission lines is analyzed. Then, the capacitances between helicopter live-line work platform, transmission lines, and ground are obtained by energy method, and an equivalent circuit model is presented to analyze the current characteristic of bonding procedure. At the end of this paper, an experiment of helicopter live-line work is performed, the electric field distributions of line worker and the discharge current are measured and compared with simulation results, which will be used to judge the security condition of line worker and the feasibility of helicopter live-line work by platform method on 1000 kV UHV transmission lines.

Keywords

capacitance; discharges (electric); electric current measurement; electric fields; electrical safety; equivalent circuits; helicopters; high-voltage techniques; power transmission lines; UHV AC transmission lines; bonding procedure; capacitance; current characteristic analysis; discharge current measurement; electric field distribution; energy method; equivalent circuit model; helicopter live-line work; line worker security condition; platform method; ultrahigh voltage transmission lines; voltage 1000 kV; Bonding; Capacitance; Discharges (electric); Electric potential; Helicopters; Power transmission lines; Transmission line measurements; Discharge current; electric field; helicopter live-line work; ultrahigh voltage (UHV);

fLanguage

English

Journal_Title

Magnetics, IEEE Transactions on

Publisher

ieee

ISSN

0018-9464

Type

jour

DOI

10.1109/TMAG.2014.2356593

Filename

7093498